GROWTH FUND OF AMERICA INC (Prospectus Summary) | GROWTH FUND OF AMERICA INC

The Growth Fund of America®

Investment objective

The fund's investment objective is to provide you with growth of capital.

Fees and expenses of the fund

This table describes the fees and expenses that you may pay if you buy and
hold shares of the fund. You may qualify for sales charge discounts if you and
your family invest, or agree to invest in the future, at least $25,000 in American
Funds. More information about these and other discounts is available from your
financial professional and in the "Sales charge reductions and waivers" section
on page 26 of the prospectus and on page 59 of the fund's statement of
additional information.

Shareholder fees (fees paid directly from your investment)

Shareholder Fees GROWTH FUND OF AMERICA INC (USD $)	Class A		Class B	Class C	Class F-1	Class F-2	Class 529-A		Class 529-B	Class 529-C	Class 529-E	Class 529-F-1	Class R-1	Class R-2	Class R-3	Class R-4	Class R-5	Class R-6
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	5.75%		none	none	none	none	5.75%		none	none	none	none	none	none	none	none	none	none
Maximum deferred sales charge (load) (as a percentage of the amount redeemed)	1.00%	[1]	5.00%	1.00%	none	none	1.00%	[1]	5.00%	1.00%	none	none	none	none	none	none	none	none
Maximum sales charge (load) imposed on reinvested dividends	none		none	none	none	none	none		none	none	none	none	none	none	none	none	none	none
Redemption or exchange fees	none		none	none	none	none	none		none	none	none	none	none	none	none	none	none	none
Maximum annual account fee (529 share classes only)							10		10	10	10	10

Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses GROWTH FUND OF AMERICA INC	Class A	Class B	Class C	Class F-1	Class F-2	Class 529-A	Class 529-B	Class 529-C	Class 529-E	Class 529-F-1	Class R-1	Class R-2	Class R-3	Class R-4	Class R-5	Class R-6
Management fees	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%	0.28%
Distribution and/or service (12b-1) fees	0.24%	1.00%	1.00%	0.25%	none	0.21%	1.00%	0.99%	0.50%	none	1.00%	0.74%	0.50%	0.25%	none	none
Other expenses	0.19%	0.18%	0.21%	0.15%	0.16%	0.28%	0.29%	0.29%	0.25%	0.28%	0.16%	0.39%	0.20%	0.16%	0.11%	0.06%
Total annual fund operating expenses	0.71%	1.46%	1.49%	0.68%	0.44%	0.77%	1.57%	1.56%	1.03%	0.56%	1.44%	1.41%	0.98%	0.69%	0.39%	0.34%

Example

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
those periods. The example also assumes that your investment has a
5% return each year and that the fund's operating expenses remain
the same.

Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example GROWTH FUND OF AMERICA INC (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Class A	643	789	947	1,407
Class B	649	862	997	1,543
Class C	252	471	813	1,779
Class F-1	69	218	379	847
Class F-2	45	141	246	555
Class 529-A	669	846	1,037	1,579
Class 529-B	679	934	1,112	1,754
Class 529-C	278	531	907	1,956
Class 529-E	125	367	627	1,362
Class 529-F-1	77	219	372	808
Class R-1	147	456	787	1,724
Class R-2	144	446	771	1,691
Class R-3	100	312	542	1,201
Class R-4	70	221	384	859
Class R-5	40	125	219	493
Class R-6	35	109	191	431

For the share classes listed below, you would pay the following if you did not redeem your shares:

Expense Example, No Redemption GROWTH FUND OF AMERICA INC (USD $)	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
Class B	149	462	797	1,543
Class C	152	471	813	1,779
Class 529-B	179	534	912	1,754
Class 529-C	178	531	907	1,956

Portfolio turnover

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 investment
results. During the most recent fiscal year, the fund's portfolio
turnover rate was 18% of the average value of its portfolio.

Principal investment strategies

The fund invests primarily in common stocks and seeks to invest in
companies that appear to offer superior opportunities for growth of
capital. The fund may invest a portion of its assets in securities
of issuers domiciled outside the United States.

The investment adviser uses a system of multiple portfolio counselors
in managing the fund's assets. Under this approach, the portfolio of
the fund is divided into segments managed by individual counselors who
decide how their respective segments will be invested.

The fund relies on the professional judgment of its investment adviser
to make decisions about the fund's portfolio investments. The basic
investment philosophy of the investment adviser is to seek to invest in
attractively valued companies that, in its opinion, represent good,
long-term investment opportunities. The investment adviser believes that
an important way to accomplish this is through fundamental analysis, which
may include meeting with company executives and employees, suppliers,
customers and competitors. Securities may be sold when the investment
adviser believes that they no longer represent relatively attractive
investment opportunities.

Principal risks

This section describes the principal risks associated with the fund's
principal investment strategies. You may lose money by investing in the
fund. The likelihood of loss may be greater if you invest for a shorter
period of time. Investors in the fund should have a long-term perspective
and be able to tolerate potentially sharp declines in value.

Market conditions - The prices of, and the income generated by, the common
stocks and other securities held by the fund may decline due to market
conditions and other factors, including those directly involving the issuers
of securities held by the fund.

Investing in growth-oriented stocks - Growth-oriented stocks may involve
larger price swings and greater potential for loss than other types of
investments.

Investing outside the United States - Securities of issuers domiciled outside
the United States, or with significant operations outside the United States,
may lose value because of political, social, economic or market developments
or instability in the countries or regions in which the issuer operates. These
securities may also lose value due to changes in foreign currency exchange rates
against the U.S. dollar and/or currencies of other countries. Securities markets
in certain countries may be more volatile and/or less liquid than those in the
United States. Investments outside the United States may also be subject to
different settlement and accounting practices and different regulatory, legal
and reporting standards, and may be more difficult to value, than those in the
United States. The risks of investing outside the United States may be
heightened in connection with investments in emerging and developing countries.

Management - The investment adviser to the fund actively manages the fund's
investments. Consequently, the fund is subject to the risk that the methods and
analyses employed by the investment adviser in this process may not produce the
desired results. This could cause the fund to lose value or its investment
results to lag relevant benchmarks or other funds with similar objectives.

Your investment in the fund is not a bank deposit and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other
governmental agency, entity or person. You should consider how this fund
fits into your overall investment program.

Investment results

The following bar chart shows how the fund's investment results have varied from
year to year, and the following table shows how the fund's average annual total
returns for various periods compare with a broad measure of market results. This
information provides some indication of the risks of investing in the fund. Past
investment results (before and after taxes) are not predictive of future
investment results. Updated information on the fund's investment results can be
obtained by visiting americanfunds.com.

The following bar chart shows how the fund's investment results have
varied from year to year, and the following table shows how the fund's
average annual total returns for various periods compare with a broad
measure of market results.

Calendar year total returns for Class A shares (Results do not include a sales charge; if a sales charge were included, results would be lower.)

Highest/Lowest quarterly results during this period were:

Highest 17.21% (quarter ended June 30, 2003)
Lowest -23.11% (quarter ended December 31, 2008)

The fund’s total return for the nine months ended September 30th, 2012, was 17.86%.

After-tax returns are shown only for Class A shares; after-tax returns
for other share classes will vary. After-tax returns are calculated using
the highest individual federal income tax rates in effect during each year
of the periods shown and do not reflect the impact of state and local taxes.
Your actual after-tax returns depend on your individual tax situation and
likely will differ from the results shown above. In addition, after-tax
returns are not relevant if you hold your fund shares through a tax-favored
arrangement, such as a 401(k) plan, individual retirement account (IRA) or
529 college savings plan.

Average annual total returns For the periods ended December 31, 2011 (with maximum sales charge):

Average Annual Total Returns GROWTH FUND OF AMERICA INC	Label	1 Year	5 Years	10 Years	Since Inception	Inception Date
Class A	Share class A - Before taxes	(10.37%)	(1.76%)	3.01%	13.01%	Dec. 01, 1973
Class B	Share class B (before taxes)	(10.31%)	(1.71%)	2.99%	1.10%	Mar. 15, 2000
Class C	Share class C (before taxes)	(6.57%)	(1.36%)	2.80%	2.52%	Mar. 15, 2001
Class F-1	Share class F-1 (before taxes)	(4.84%)	(0.56%)	3.63%	3.29%	Mar. 15, 2001
Class F-2	Share class F-2 (before taxes)	(4.63%)			(0.39%)	Aug. 01, 2008
Class 529-A	Share class 529-A (before taxes)	(10.41%)	(1.80%)		3.51%	Feb. 15, 2002
Class 529-B	Share class 529-B (before taxes)	(10.39%)	(1.80%)		3.42%	Feb. 15, 2002
Class 529-C	Share class 529-C (before taxes)	(6.60%)	(1.42%)		3.27%	Feb. 15, 2002
Class 529-E	Share class 529-E (before taxes)	(5.17%)	(0.92%)		3.67%	Mar. 01, 2002
Class 529-F-1	Share class 529-F-1 (before taxes)	(4.72%)	(0.43%)		6.87%	Sep. 16, 2002
Class R-1	Share class R-1 (before taxes)	(5.58%)	(1.34%)		4.26%	Jun. 06, 2002
Class R-2	Share class R-2(before taxes)	(5.55%)	(1.31%)		3.74%	May 21, 2002
Class R-3	Share class R-3 (before taxes)	(5.14%)	(0.87%)		4.20%	May 21, 2002
Class R-4	Share class R-4 (before taxes)	(4.87%)	(0.59%)		4.58%	May 28, 2002
Class R-5	Share class R-5 (before taxes)	(4.59%)	(0.29%)		4.68%	May 15, 2002
Class R-6	Share class R-6 (before taxes)	(4.53%)			12.52%	May 01, 2009
After Taxes on Distributions Class A	Share class A - After taxes on distributions	(10.47%)	(2.07%)	2.76%		Dec. 01, 1973
After Taxes on Distributions and Sales Class A	Share class A - After taxes on distributions and sale of fund shares	(6.60%)	(1.48%)	2.61%		Dec. 01, 1973
S&P 500	S&P 500 (reflects no deductions for sales charges, account fees, expenses or taxes)	2.09%	(0.25%)	2.92%	10.37%	Dec. 01, 1973

[1] A contingent deferred sales charge of 1.00% applies on certain redemptions within one year following purchases of $1 million or more made without an initial sales charge.