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                        The Income Fund of America, Inc.
                           One Market, Steuart Tower
                                   Suite 1800
                        San Francisco, California 94105
                              Phone (415) 421-9360



                CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

HILDA L. APPLBAUM, President and PEO, and JENNIFER M. BUCHHEIM, Treasurer of The
Income Fund of America, Inc. (the "Registrant"), each certify to the best of her
knowledge that:

1)   The  Registrant's  periodic  report on Form N-CSR for the period ended July
     31, 2005 (the "Form N-CSR") fully complies with the requirements of Section
     13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2)   The  information  contained  in the  Form  N-CSR  fairly  presents,  in all
     material respects, the financial condition and results of operations of the
     Registrant.


Principal Executive Officer                 Principal Financial Officer

THE INCOME FUND OF AMERICA, INC.            THE INCOME FUND OF AMERICA, INC.


/s/ Hilda L. Applbaum                       /s/ Jennifer M. Buchheim
- ----------------------------                -------------------------------
Hilda L. Applbaum, President                Jennifer M. Buchheim, Treasurer

Date: October 7, 2005                       Date: October 7, 2005


A signed  original  of this  written  statement  required  by Section 906 of the
Sarbanes-Oxley Act of 2002 has been provided to THE INCOME FUND OF AMERICA, INC.
and will be retained by THE INCOME FUND OF AMERICA,  INC.  and  furnished to the
Securities and Exchange Commission (the "Commission") or its staff upon request.

This  certification  is being furnished to the Commission  solely pursuant to 18
U.S.C.  Section 1350 and is not being filed as part of the Form N-CSR filed with
the Commission.