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FRANKLIN LOUISIANA TAX-FREE INCOME FUND  
Risk/Return: oef_RiskReturnAbstract  
Risk/Return [Heading] oef_RiskReturnHeading Franklin Louisiana Tax-Free Income Fund
Objective [Heading] oef_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] oef_ObjectivePrimaryTextBlock

To provide investors with as high a level of income exempt from federal income taxes as is consistent with prudent investment management and the preservation of shareholders’ capital. The Fund also tries to provide a maximum level of income exempt from personal income taxes, if any, for resident shareholders of Louisiana.
Expense Heading [Optional Text] oef_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] oef_ExpenseNarrativeTextBlock

These tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees (including on Class R6 and Advisor Class shares), such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds and certain other funds distributed through Franklin Distributors, LLC, the Fund’s distributor. More information about these and other discounts is available from your financial professional and under “Your Account” on page 118 in the Fund’s Prospectus and under “Buying and Selling Shares” on page 54 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in Appendix A – “Intermediary Sales Charge Discounts and Waivers” to the Fund’s prospectus.
Shareholder Fees Caption [Optional Text] oef_ShareholderFeesCaption Shareholder Fees
Operating Expenses Caption [Optional Text] oef_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading] oef_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] oef_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held

in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 17.30% of the average value of its portfolio.
Portfolio Turnover, Rate oef_PortfolioTurnoverRate 17.30%
Expense Breakpoint Discounts [Text] oef_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds and certain other funds distributed through Franklin Distributors, LLC, the Fund’s distributor.
Expense Breakpoint, Minimum Investment Required [Amount] oef_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 100,000
Expense Example [Heading] oef_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] oef_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects adjustments made to the Fund's operating expenses due to the fee waivers and/or expense reimbursements by management for the 1 Year numbers only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] oef_ExpenseExampleNoRedemptionByYearCaption If you do not sell your shares:
Strategy [Heading] oef_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests at least 80% of its total assets in securities whose interest is free from federal income taxes, including the federal alternative minimum tax. In addition, under normal market conditions, the Fund invests at least 80% of its total assets in securities that pay interest free from the personal income taxes, if any, of Louisiana. Although the Fund tries to invest all of its assets in tax-free securities, it is possible that up to 20% of the Fund's total assets may be in securities that pay interest that may be subject to the federal alternative minimum tax and in securities that pay interest subject to other federal or state income taxes.

The Fund only buys municipal securities rated, at the time of purchase, in one of the top four ratings categories by one or more U.S. nationally recognized rating services (or unrated or short-term rated securities of comparable credit quality).

The Fund also may invest up to 35% of its total assets in municipal securities issued by U.S. territories.

Although the investment manager will search for investments across a large number of municipal securities that finance different types of projects, from time to time, based on economic conditions, the Fund may have significant positions in municipal securities that finance similar types of projects.

The investment manager selects securities that it believes will provide the best balance between risk and return within the Fund’s range of allowable investments and typically invests with a long-term time horizon. This means it generally holds securities in the Fund’s portfolio for income purposes, although the investment manager may sell a security at any time if it believes it could help the Fund meet its goal. With a focus on income, individual securities are considered for purchase or sale based on various factors and considerations, including credit profile, risk, structure, pricing, portfolio impact, duration management, restructuring, opportunistic trading and tax loss harvesting opportunities.

Strategy Portfolio Concentration [Text] oef_StrategyPortfolioConcentration Under normal market conditions, the Fund invests at least 80% of its total assets in securities whose interest is free from federal income taxes, including the federal alternative minimum tax.
Bar Chart and Performance Table [Heading] oef_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] oef_PerformanceNarrativeTextBlock

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] oef_PerformanceInformationIllustratesVariabilityOfReturns 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.
Performance Availability Phone [Text] oef_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] oef_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] oef_PerformancePastDoesNotIndicateFuture 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] oef_BarChartHeading Class A Annual Total Returns
Bar Chart Does Not Reflect Sales Loads [Text] oef_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] oef_BarChartClosingTextBlock
   

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 Heading oef_PerformanceTableHeading Average Annual Total Returns (figures reflect sales charges) For periods ended December 31, 2024
Index No Deduction for Fees, Expenses, or Taxes [Text] oef_IndexNoDeductionForFeesExpensesTaxes (index reflects no deduction for fees, expenses or taxes)
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Principal Risks  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Principal Risks

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Risk Lose Money [Member]  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock You could lose money by investing in the Fund.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Risk Not Insured [Member]  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Interest Rate  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Interest Rate: When interest rates rise, debt security prices generally fall. The opposite is also generally true: debt security prices rise when interest rates fall. Interest rate changes are influenced by a number of factors, including government policy, monetary policy, inflation expectations, perceptions of risk, and supply of and demand for bonds. In general, securities with longer maturities or durations are more sensitive to interest rate changes.

FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Credit  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Credit: An issuer of debt securities may fail to make interest payments or repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's or government's credit rating may affect a security's value. A change in the credit rating of a municipal bond insurer that insures securities in the Fund’s portfolio may affect the value of the securities it insures, the Fund’s share price and Fund performance. The Fund might also be adversely impacted by the inability of an insurer to meet its insurance obligations.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Liquidity  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Liquidity: The trading market for a particular security or type of security or other investments in which the Fund invests may become less liquid or even illiquid. Reduced liquidity will have an adverse impact on the Fund’s ability to sell such securities or other investments when necessary to meet the Fund’s liquidity needs, which may arise or increase in response to a specific economic event or because the investment manager wishes to purchase particular investments or believes that a higher level of liquidity would be advantageous. Reduced liquidity will also generally lower the value of such securities or other investments. Market prices for such securities or other investments may be relatively volatile.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Tax Legislative and Political Changes  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Tax Legislative and Political Changes: The municipal securities market could be significantly affected by adverse political and legislative changes or litigation at the federal or state level. The value of municipal bonds is closely tied to the benefits of tax-exempt income to investors. Significant revisions of federal income tax laws or regulations revising income tax rates or the tax-exempt character of municipal bonds, or even proposed changes and deliberations on this topic by the federal government, could cause municipal bond prices to fall. For example, lower federal income tax rates would reduce certain relative advantages of owning municipal bonds, and lower state income tax rates could have similar effects. In addition, the application of corporate minimum tax rates to financial statement income may have the effect of reducing demand for municipal bonds among corporate investors, which may in turn impact municipal bond prices.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Tax-Exempt Securities  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Tax-Exempt Securities: Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Market  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Market: The market values of securities or other investments owned by the Fund will go up or down, sometimes rapidly or unpredictably. The market value of a security or other investment may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all investments. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise. In addition, the value of the Fund’s investments may go up or down due to general market or other conditions that are not specifically related to a particular issuer, such as: real or perceived adverse economic changes, including widespread liquidity issues and defaults in one or more industries; changes in interest or exchange rates; unexpected natural and man-made world events, such as diseases or disasters; financial, political or social disruptions, including terrorism and war; and U.S. trade disputes or other disputes with specific countries that could result in tariffs, trade barriers and investment restrictions in certain securities in those countries. Any of these conditions can adversely affect the economies of many companies, sectors, nations, regions and the market in general, in ways that cannot necessarily be foreseen.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Louisiana  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Louisiana: The Fund invests predominantly in Louisiana municipal securities. Therefore, events in Louisiana are likely to affect the Fund’s investments and its performance. These events may include economic or political policy changes, tax base erosion, unfunded pension and healthcare liabilities, constitutional limits on tax increases, budget deficits and other financial difficulties, and changes in the credit ratings assigned to municipal issuers of Louisiana. The same is true of events in other states or U.S. territories, to the extent that the Fund has exposure to any other state or territory at any given time.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Focus  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Focus: The Fund may invest more than 25% of its assets in municipal securities that finance similar types of projects, such as utilities, hospitals, higher education and transportation. A change that affects one project, such as proposed legislation on the financing of the project, a shortage of the materials needed for the project, or a declining need for the project, would likely affect all similar projects, thereby increasing market risk.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Income  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Income: The Fund's distributions to shareholders may decline when prevailing interest rates fall, when the Fund experiences defaults on debt securities it holds or when the Fund realizes a loss upon the sale of a debt security.

FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Prepayment  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Prepayment: Prepayment risk occurs when a debt security can be repaid in whole or in part prior to the security's maturity and the Fund must reinvest the proceeds it receives, during periods of declining interest rates, in securities that pay a lower rate of interest. Also, if a security has been purchased at a premium, the value of the premium would be lost in the event of prepayment. Prepayments generally increase when interest rates fall.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Inflation  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Inflation: The market price of debt securities generally falls as inflation increases because the purchasing power of the future income and repaid principal is expected to be worth less when received by the Fund. Debt securities that pay a fixed rather than variable interest rate are especially vulnerable to inflation risk because variable-rate debt securities may be able to participate, over the long term, in rising interest rates which have historically corresponded with long-term inflationary trends.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Bond Insurers  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Bond Insurers: Market conditions or changes to ratings criteria could adversely impact the ratings of municipal bond insurance companies. Downgrades and withdrawal of ratings from municipal bond insurers have substantially limited the availability of insurance sought by municipal bond issuers thereby reducing the supply of insured municipal securities.

Because of the consolidation among municipal bond insurers the Fund is subject to additional risks including the risk that credit risk may be concentrated among fewer insurers and the risk that events involving one or more municipal bond insurers could have a significant adverse effect on the value of the securities insured by an insurer and on the municipal markets as a whole.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Unrated Debt Securities  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Unrated Debt Securities: Unrated debt securities determined by the investment manager to be of comparable credit quality to rated securities which the Fund may purchase may pay a higher interest rate than such rated debt securities and be subject to a greater risk of illiquidity or price changes. Less public information and independent credit analysis are typically available about unrated securities or issuers, and therefore they may be subject to greater risk of default.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Management  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Management: The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Cybersecurity  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Cybersecurity: Cybersecurity incidents, both intentional and unintentional, may allow an unauthorized party to gain access to Fund assets, Fund or customer data (including private shareholder information), or proprietary information, cause the Fund, the investment manager, and/or their service providers (including, but not limited to, Fund accountants, custodians, sub-custodians, transfer agents and financial intermediaries) to suffer data breaches, data corruption or loss of operational functionality or prevent Fund investors from purchasing, redeeming or exchanging shares or receiving distributions. The investment manager has limited ability to prevent or mitigate cybersecurity incidents affecting third party service providers, and such third party service providers may have limited indemnification obligations to the Fund or the investment manager. Cybersecurity incidents may result in financial losses to the Fund and its shareholders, and substantial costs may be incurred in an effort to prevent or mitigate future cybersecurity incidents.

Issuers of securities in which the Fund invests are also subject to cybersecurity risks, and the value of these securities could decline if the issuers experience cybersecurity incidents.

Because technology is frequently changing, new ways to carry out cyber attacks are always developing. Therefore, there is a chance that some risks have not been identified or prepared for, or that an attack may not be detected, which puts limitations on the Fund's ability to plan for or respond to a cyber attack. Like other funds and business enterprises, the Fund, the investment manager, and their service providers are subject to the risk of cyber incidents occurring from time to time.
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Bloomberg Municipal Bond Index  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Bloomberg Municipal Bond Index
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.05%
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.99%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.25%
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Class A  
Risk/Return: oef_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00% [1]
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.14%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.93%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.03%) [2]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.90%
Fee Waiver or Reimbursement over Assets, Date of Termination oef_FeeWaiverOrReimbursementOverAssetsDateOfTermination June 30, 2026
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 463
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 657
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 867
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,473
Year to Date Return, Label [Optional Text] oef_YearToDateReturnLabel As of March 31, 2025, the Fund’s year-to-date return was -0.58%.
Bar Chart, Year to Date Return, Date oef_BarChartYearToDateReturnDate Mar. 31, 2025
Bar Chart, Year to Date Return oef_BarChartYearToDateReturn (0.58%)
Highest Quarterly Return, Label [Optional Text] oef_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date oef_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Highest Quarterly Return oef_BarChartHighestQuarterlyReturn 8.31%
Lowest Quarterly Return, Label [Optional Text] oef_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date oef_BarChartLowestQuarterlyReturnDate Mar. 31, 2022
Lowest Quarterly Return oef_BarChartLowestQuarterlyReturn (6.62%)
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Return before taxes
Average Annual Return, Percent oef_AvgAnnlRtrPct (1.72%)
Average Annual Return, Percent oef_AvgAnnlRtrPct (0.28%)
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.26%
Annual Return [Percent] oef_AnnlRtrPct 2.59%
Annual Return [Percent] oef_AnnlRtrPct 0.63%
Annual Return [Percent] oef_AnnlRtrPct 3.30%
Annual Return [Percent] oef_AnnlRtrPct 1.08%
Annual Return [Percent] oef_AnnlRtrPct 6.64%
Annual Return [Percent] oef_AnnlRtrPct 4.16%
Annual Return [Percent] oef_AnnlRtrPct 2.05%
Annual Return [Percent] oef_AnnlRtrPct (10.99%)
Annual Return [Percent] oef_AnnlRtrPct 6.02%
Annual Return [Percent] oef_AnnlRtrPct 2.11%
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Class A | After Taxes on Distributions  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Return after taxes on distributions
Average Annual Return, Percent oef_AvgAnnlRtrPct (1.75%)
Average Annual Return, Percent oef_AvgAnnlRtrPct (0.29%)
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.26%
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Class A | After Taxes on Distributions and Sales  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Return after taxes on distributions and sale of Fund shares
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.05%
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.34%
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.62%
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | CLASS A1  
Risk/Return: oef_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00% [1]
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.10%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.14%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.78%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.03%) [2]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.75%
Fee Waiver or Reimbursement over Assets, Date of Termination oef_FeeWaiverOrReimbursementOverAssetsDateOfTermination June 30, 2026
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 449
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 612
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 789
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,301
Average Annual Return, Percent oef_AvgAnnlRtrPct (1.49%)
Average Annual Return, Percent oef_AvgAnnlRtrPct (0.14%)
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.36%
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | CLASS C  
Risk/Return: oef_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.65%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.13%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.32%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.02%) [2]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 1.30%
Fee Waiver or Reimbursement over Assets, Date of Termination oef_FeeWaiverOrReimbursementOverAssetsDateOfTermination June 30, 2026
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 232
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 416
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 721
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 1,481
Expense Example, No Redemption, 1 Year oef_ExpenseExampleNoRedemptionYear01 132
Expense Example, No Redemption, 3 Years oef_ExpenseExampleNoRedemptionYear03 416
Expense Example, No Redemption, 5 Years oef_ExpenseExampleNoRedemptionYear05 721
Expense Example, No Redemption, 10 Years oef_ExpenseExampleNoRedemptionYear10 $ 1,481
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.76%
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.06%
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.16%
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Class R6  
Risk/Return: oef_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00%
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.09%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.63%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.01%) [2]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.62%
Fee Waiver or Reimbursement over Assets, Date of Termination oef_FeeWaiverOrReimbursementOverAssetsDateOfTermination June 30, 2026
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 63
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 200
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 349
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 785
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.50%
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.77%
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.68% [3]
Performance Inception Date oef_PerfInceptionDate Aug. 01, 2017
FRANKLIN LOUISIANA TAX-FREE INCOME FUND | Advisor Class  
Risk/Return: oef_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00%
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.54%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.14%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.68%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.03%) [2]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.65%
Fee Waiver or Reimbursement over Assets, Date of Termination oef_FeeWaiverOrReimbursementOverAssetsDateOfTermination June 30, 2026
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 66
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 214
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 375
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 843
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.36%
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.73%
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.83%
[1]

There is a 1% contingent deferred sales charge that applies to investments of $250,000 or more (see "Investments of $250,000 or More" under "Choosing a Share Class") and purchases by certain retirement plans without an initial sales charge on shares sold within 18 months of purchase.
[2] The investment manager has agreed to waive fees and/or reimburse operating expenses (excluding Rule 12b-1 fees, acquired fund fees and expenses, interest expense and certain non-routine expenses or costs, such as those relating to litigation, indemnification, reorganizations and liquidations) for the Fund so that the ratio of total annual fund operating expenses will not exceed 0.65% for each share class. In addition, transfer agency fees on Class R6 shares of the Fund have been capped so that transfer agency fees for that class do not exceed 0.03%. These contractual arrangements are expected to continue until June 30, 2026. During the terms, the fee waiver and expense reimbursement agreements may not be terminated or amended without approval of the board of trustees except to add series or classes, to reflect the extension of termination dates or to lower the waiver and expense limitation (which would result in lower fees for shareholders).
[3]

Since inception August 1, 2017.