Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	6.35%
Worst Quarter:	2022, Q1	-5.85%

As of March 31, 2025, the Fund’s year-to-date return was 0.09%.

Performance [Table]

Average Annual Total Returns - FRANKLIN FEDERAL INTERMEDIATE-TERM TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Bloomberg Municipal 1-15 Year Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal 1-15 Year Index
Bloomberg Municipal 1-15 Year Index \| Average Annual Return, Percent		0.88%	1.08%			2.04%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		0.02%	0.33%			1.22%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(0.06%)	0.30%			1.21%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		1.07%	0.76%			1.48%
CLASS A1 \| Average Annual Return, Percent		0.26%	0.48%			1.31%
CLASS C \| Average Annual Return, Percent		0.91%	0.38%			0.98%
Class R6 \| Average Annual Return, Percent		2.71%	1.09%	1.53%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.66%	1.04%			1.64%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Prospectus [Line Items]

Bar Chart, Year to Date Return

0.09%

Highest Quarterly Return, Label [Optional Text]

Best Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(5.85%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	3.47%
Worst Quarter:	2022, Q1	-3.13%

As of March 31, 2025, the Fund’s year-to-date return was 0.74%.

Performance [Table]

Average Annual Total Returns - FRANKLIN FEDERAL LIMITED-TERM TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Bloomberg Municipal Short 1-5 Years Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Short 1-5 Years Index
Bloomberg Municipal Short 1-5 Years Index \| Average Annual Return, Percent		2.07%	1.10%			1.38%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		0.93%	0.70%			0.90%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		0.77%	0.66%			0.88%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		1.45%	0.85%			0.97%
CLASS A1 \| Average Annual Return, Percent		0.98%	0.80%			0.98%
Class R6 \| Average Annual Return, Percent		3.54%	1.44%	1.62%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
Advisor Class \| Average Annual Return, Percent		3.51%	1.41%			1.37%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was 0.74%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

3.47%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.94%
Worst Quarter:	2022, Q1	-7.22%

As of March 31, 2025, the Fund’s year-to-date return was -0.05%.

Performance [Table]

Average Annual Total Returns - FRANKLIN HIGH YIELD TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		2.26%	0.66%			2.06%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		2.15%	0.61%			2.04%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		3.01%	1.35%			2.48%
CLASS A1 \| Average Annual Return, Percent		2.45%	0.80%			2.16%
CLASS C \| Average Annual Return, Percent		4.69%	0.93%			1.93%
Class R6 \| Average Annual Return, Percent		6.40%	1.69%	2.51%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		6.48%	1.65%			2.63%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.05%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.94%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.41%
Worst Quarter:	2022, Q1	-6.54%

As of March 31, 2025, the Fund’s year-to-date return was -0.94%.

Performance [Table]

Average Annual Total Returns - FRANKLIN MASSACHUSETTS TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(2.55%)	(0.77%)			1.07%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(2.58%)	(0.78%)			1.07%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		(0.46%)	(0.06%)			1.44%
CLASS A1 \| Average Annual Return, Percent		(2.43%)	(0.62%)			1.16%
CLASS C \| Average Annual Return, Percent		(0.16%)	(0.44%)			0.97%
Class R6 \| Average Annual Return, Percent		1.54%	0.28%	1.30%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		1.51%	0.23%			1.65%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.94%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.41%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.48%
Worst Quarter:	2022, Q1	-6.10%

As of March 31, 2025, the Fund’s year-to-date return was -0.93%.

Performance [Table]

Average Annual Total Returns - FRANKLIN NEW JERSEY TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.54%)	(0.19%)			1.24%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.57%)	(0.19%)			1.24%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.23%	0.45%			1.65%
CLASS A1 \| Average Annual Return, Percent		(1.35%)	(0.02%)			1.33%
CLASS C \| Average Annual Return, Percent		0.86%	0.15%			1.14%
Class R6 \| Average Annual Return, Percent		2.60%	0.89%	1.84%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.55%	0.85%			1.83%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.93%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.48%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	8.92%
Worst Quarter:	2022, Q1	-6.32%

As of March 31, 2025, the Fund’s year-to-date return was -0.82%.

Performance [Table]

Average Annual Total Returns - FRANKLIN ALABAMA TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(2.40%)	(0.29%)			1.13%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(2.43%)	(0.30%)			1.12%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		(0.43%)	0.31%			1.49%
CLASS A1 \| Average Annual Return, Percent		(2.26%)	(0.13%)			1.22%
CLASS C \| Average Annual Return, Percent		0.08%	0.05%			1.04%
Class R6 \| Average Annual Return, Percent		1.78%	0.77%	1.59%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
Advisor Class \| Average Annual Return, Percent		1.66%	0.72%			1.69%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.82%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

8.92%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	8.92%
Worst Quarter:	2022, Q1	-6.42%

As of March 31, 2025, the Fund’s year-to-date return was -1.01%.

Performance [Table]

Average Annual Total Returns - FRANKLIN GEORGIA TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(2.09%)	(0.45%)			1.00%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(2.12%)	(0.46%)			0.99%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		(0.18%)	0.23%			1.42%
CLASS A1 \| Average Annual Return, Percent		(1.96%)	(0.30%)			1.10%
CLASS C \| Average Annual Return, Percent		0.29%	(0.13%)			0.89%
Class R6 \| Average Annual Return, Percent		2.01%	0.60%	1.46%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
Advisor Class \| Average Annual Return, Percent		2.07%	0.58%			1.57%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -1.01%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

8.92%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	8.31%
Worst Quarter:	2022, Q1	-6.62%

As of March 31, 2025, the Fund’s year-to-date return was -0.58%.

Performance [Table]

Average Annual Total Returns - FRANKLIN LOUISIANA TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.72%)	(0.28%)			1.26%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.75%)	(0.29%)			1.26%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.05%	0.34%			1.62%
CLASS A1 \| Average Annual Return, Percent		(1.49%)	(0.14%)			1.36%
CLASS C \| Average Annual Return, Percent		0.76%	0.06%			1.16%
Class R6 \| Average Annual Return, Percent		2.50%	0.77%	1.68%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
Advisor Class \| Average Annual Return, Percent		2.36%	0.73%			1.83%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.58%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

8.31%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.71%
Worst Quarter:	2022, Q1	-6.25%

As of March 31, 2025, the Fund’s year-to-date return was -0.96%.

Performance [Table]

Average Annual Total Returns - FRANKLIN MARYLAND TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.87%)	(0.38%)			1.02%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.89%)	(0.39%)			1.02%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.11%	0.31%			1.45%
CLASS A1 \| Average Annual Return, Percent		(1.73%)	(0.25%)			1.12%
CLASS C \| Average Annual Return, Percent		0.51%	(0.09%)			0.93%
Class R6 \| Average Annual Return, Percent		2.25%	0.68%	1.58%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.10%	0.61%			1.61%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.96%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.71%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.93%
Worst Quarter:	2022, Q1	-6.32%

As of March 31, 2025, the Fund’s year-to-date return was -0.73%.

Performance [Table]

Average Annual Total Returns - FRANKLIN MISSOURI TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.39%)	(0.40%)			1.15%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.42%)	(0.41%)			1.15%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.45%	0.33%			1.57%
CLASS A1 \| Average Annual Return, Percent		(1.25%)	(0.25%)			1.24%
CLASS C \| Average Annual Return, Percent		1.02%	(0.08%)			1.06%
Class R6 \| Average Annual Return, Percent		2.74%	0.63%	1.56%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.71%	0.61%			1.74%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.73%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.93%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.73%
Worst Quarter:	2022, Q1	-6.64%

As of March 31, 2025, the Fund’s year-to-date return was -0.98%.

Performance [Table]

Average Annual Total Returns - FRANKLIN NORTH CAROLINA TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.91%)	(0.48%)			0.87%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.94%)	(0.49%)			0.87%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		(0.11%)	0.15%			1.28%
CLASS A1 \| Average Annual Return, Percent		(1.85%)	(0.35%)			0.96%
CLASS C \| Average Annual Return, Percent		0.47%	(0.16%)			0.78%
Class R6 \| Average Annual Return, Percent		2.21%	0.57%	1.38%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.17%	0.54%			1.46%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.98%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.73%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.89%
Worst Quarter:	2022, Q1	-6.72%

As of March 31, 2025, the Fund’s year-to-date return was -1.14%.

Performance [Table]

Average Annual Total Returns - FRANKLIN VIRGINIA TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.59%)	(0.76%)			0.80%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.62%)	(0.77%)			0.80%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.11%	(0.08%)			1.24%
CLASS A1 \| Average Annual Return, Percent		(1.54%)	(0.60%)			0.89%
CLASS C \| Average Annual Return, Percent		0.69%	(0.44%)			0.71%
Class R6 \| Average Annual Return, Percent		2.45%	0.30%	1.16%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.39%	0.25%			1.39%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -1.14%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.89%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.76%
Worst Quarter:	2022, Q1	-6.35%

As of March 31, 2025, the Fund’s year-to-date return was -0.79%.

Performance [Table]

Average Annual Total Returns - FRANKLIN ARIZONA TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.47%)	(0.23%)			1.32%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.50%)	(0.25%)			1.31%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.31%	0.42%			1.69%
CLASS A1 \| Average Annual Return, Percent		(1.28%)	(0.08%)			1.40%
CLASS C \| Average Annual Return, Percent		0.82%	0.09%			1.21%
Class R6 \| Average Annual Return, Percent		2.55%	0.82%	1.78%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.62%	0.79%			1.90%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.79%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.76%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	8.21%
Worst Quarter:	2022, Q1	-6.26%

As of March 31, 2025, the Fund’s year-to-date return was -0.68%.

Performance [Table]

Average Annual Total Returns - FRANKLIN COLORADO TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.38%)	(0.20%)			1.24%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.42%)	(0.22%)			1.23%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.33%	0.41%			1.62%
CLASS A1 \| Average Annual Return, Percent		(1.21%)	(0.05%)			1.33%
CLASS C \| Average Annual Return, Percent		1.03%	0.12%			1.14%
Class R6 \| Average Annual Return, Percent		2.76%	0.86%	1.67%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.72%	0.80%			1.82%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.68%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

8.21%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	8.77%
Worst Quarter:	2022, Q1	-6.80%

As of March 31, 2025, the Fund’s year-to-date return was -1.00%.

Performance [Table]

Average Annual Total Returns - FRANKLIN CONNECTICUT TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(2.03%)	(0.58%)			0.70%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(2.07%)	(0.61%)			0.69%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		(0.19%)	0.10%			1.18%
CLASS A1 \| Average Annual Return, Percent		(1.92%)	(0.44%)			0.78%
CLASS C \| Average Annual Return, Percent		0.26%	(0.26%)			0.60%
Class R6 \| Average Annual Return, Percent		2.07%	0.47%	1.27%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		1.93%	0.41%			1.27%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -1.00%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

8.77%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.37%
Worst Quarter:	2022, Q1	-6.39%

As of March 31, 2025, the Fund’s year-to-date return was -0.70%.

Performance [Table]

Average Annual Total Returns - FRANKLIN MICHIGAN TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.86%)	(0.38%)			1.13%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.89%)	(0.39%)			1.12%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.05%	0.30%			1.52%
CLASS A1 \| Average Annual Return, Percent		(1.70%)	(0.24%)			1.21%
CLASS C \| Average Annual Return, Percent		0.53%	(0.04%)			1.02%
Class R6 \| Average Annual Return, Percent		2.33%	0.67%	1.74%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.21%	0.64%			1.70%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.70%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.37%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	9.09%
Worst Quarter:	2022, Q1	-6.74%

As of March 31, 2025, the Fund’s year-to-date return was -0.61%.

Performance [Table]

Average Annual Total Returns - FRANKLIN MINNESOTA TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(2.42%)	(0.65%)			0.97%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(2.43%)	(0.66%)			0.96%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		(0.27%)	0.04%			1.34%
CLASS A1 \| Average Annual Return, Percent		(2.35%)	(0.52%)			1.06%
CLASS C \| Average Annual Return, Percent		(0.12%)	(0.33%)			0.87%
Class R6 \| Average Annual Return, Percent		1.58%	0.40%	1.36%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		1.63%	0.36%			1.55%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.61%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

9.09%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.87%
Worst Quarter:	2022, Q1	-6.66%

As of March 31, 2025, the Fund’s year-to-date return was -0.80%.

Performance [Table]

Average Annual Total Returns - FRANKLIN OHIO TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.76%)	(0.54%)			1.31%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.81%)	(0.56%)			1.30%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.14%	0.16%			1.65%
CLASS A1 \| Average Annual Return, Percent		(1.61%)	(0.40%)			1.40%
CLASS C \| Average Annual Return, Percent		0.55%	(0.23%)			1.22%
Class R6 \| Average Annual Return, Percent		2.35%	0.51%	1.54%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.23%	0.46%			1.90%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.80%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.87%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	7.69%
Worst Quarter:	2022, Q1	-6.43%

As of March 31, 2025, the Fund’s year-to-date return was -0.95%.

Performance [Table]

Average Annual Total Returns - FRANKLIN OREGON TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.91%)	(0.43%)			1.15%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.93%)	(0.44%)			1.15%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.04%	0.24%			1.53%
CLASS A1 \| Average Annual Return, Percent		(1.74%)	(0.27%)			1.24%
CLASS C \| Average Annual Return, Percent		0.49%	(0.11%)			1.06%
Class R6 \| Average Annual Return, Percent		2.21%	0.62%	1.49%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.07%	0.58%			1.73%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.95%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

7.69%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.

Bar Chart [Heading]

Class A Annual Total Returns

Bar Chart Closing [Text Block]


Best Quarter:	2023, Q4	8.43%
Worst Quarter:	2022, Q1	-6.53%

As of March 31, 2025, the Fund’s year-to-date return was -0.94%.

Performance [Table]

Average Annual Total Returns - FRANKLIN PENNSYLVANIA TAX-FREE INCOME FUND		12 Months Ended	60 Months Ended	89 Months Ended		120 Months Ended
	Feb. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024		Dec. 31, 2024
Bloomberg Municipal Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg Municipal Bond Index
Bloomberg Municipal Bond Index \| Average Annual Return, Percent		1.05%	0.99%			2.25%
Class A \| Average Annual Return, Label [Optional Text]	Return before taxes
Class A \| Average Annual Return, Percent		(1.77%)	(0.48%)			1.01%
Class A \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions
Class A \| After Taxes on Distributions \| Average Annual Return, Percent		(1.81%)	(0.49%)			1.01%
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return after taxes on distributions and sale of Fund shares
Class A \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.13%	0.22%			1.47%
CLASS A1 \| Average Annual Return, Percent		(1.77%)	(0.36%)			1.10%
CLASS C \| Average Annual Return, Percent		0.62%	(0.16%)			0.91%
Class R6 \| Average Annual Return, Percent		2.34%	0.55%	1.38%	^[1]
Class R6 \| Performance Inception Date				Aug. 01, 2017
ADVISOR CLASS \| Average Annual Return, Percent		2.31%	0.51%			1.59%

[1]	Since inception August 1, 2017.

Performance Availability Website Address [Text]

franklintempleton.com

Year to Date Return, Label [Optional Text]

As of March 31, 2025, the Fund’s year-to-date return was -0.94%.

Bar Chart, Year to Date Return, Date

Mar. 31, 2025

Highest Quarterly Return

8.43%

Lowest Quarterly Return, Label [Optional Text]

Worst Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022