UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 [x]
PRE-EFFECTIVE AMENDMENT NO. __ [_]
POST-EFFECTIVE AMENDMENT NO. 74 [x]

AND/OR
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
AMENDMENT NO. 43 [x]

(CHECK APPROPRIATE BOX OR BOXES)
AMERICAN GROWTH FUND, INC.
(EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)
1917 Market Street, Denver, Colorado 80202
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) (ZIP CODE)
REGISTRANTS TELEPHONE NUMBER, INCLUDING AREA CODE (303) 626-0600

Robert Brody, 1917 Market Street, Denver, CO 80202
(Name and Address of Agent for Service)
Approximate Date of Proposed Public Offering: as soon as practicable after
the effective date of the Registration Statement
It is proposed that this filing will become effective (check appropriate box)

[X] immediately upon filing pursuant to paragraph (b)
[_] on pursuant to paragraph (b)
[_] 60 days after filing pursuant to paragraph (a)(1)
[_] on ___________ Pursuant to paragraph (a)(1)
[_] 75 days after filing pursuant to paragraph (a)(2)
[_] on (date) pursuant to paragraph (a)(2) of Rule 485

If appropriate, check the following box:
[_] this post-effective amendment designates a new effective Date for a previously filed post-effective amendment.


SIGNATURES
Pursuant to the requirements of (the Securities Act and) the Investment Company Act, the Fund has duly caused this registration statement to be signed on its behalf by the undersigned, duly authorized, in the City of Denver, and State of Colorado on the day of May 24, 2011.


American Growth Fund, Inc.
Fund

By /s/ Robert Brody
Robert Brody, President



Pursuant to the requirements of the Securities Act, this registration statement has been signed below by the following persons in the capacities and on the date(s) indicated.


/s/ Robert Brody
Robert Brody
President and Director
05/24/2011

/s/ Timothy E. Taggart
Timothy E. Taggart
Treasurer
05/24/2011

/s/ Eddie R. Bush
Eddie R. Bush
Director
05/24/2011

/s/ Harold Rosen
Harold Rosen
Director
05/24/2011

/s/ John Pasco III
John Pasco III
Director
05/24/2011

/s/ Dr. Brian Brody
Dr. Brian Brody
Director
05/24/2011

Exhibit Index


Index No. and Description of Exhibit

EX-101.INS XBRL Instance Document

EX-101.SCH XBRL Taxonomy Extension Schema Document

EX-101.CAL XBRL Taxonomy Extension Calculation Linkbase

EX-101.DEF XBRL Taxonomy Extension Definition Linkbase

EX-101.LAB XBRL Taxonomy Extension Labels Linkbase

EX-101.PRE XBRL Taxonomy Extension Presentation Linkbase