Exhibit 32.2

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


I, Brian B. Nickel, Chief Financial Officer of American Campus Communities, Inc.
(the "Company"), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of
2002, 18 U.S.C. Section 1350, that:

(i)  The Quarterly Report on Form 10-Q of the Company for the quarter ended June
30, 2005 (the "Report") fully complies with the requirements of Section 13(a) of
the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

(ii) The information contained in the Report fairly presents, in all material
respects, the financial condition and results of operations of the Company.


Dated:   August 15, 2005                /s/ Brian B. Nickel
                                        ----------------------------
                                        Brian B. Nickel
                                        Executive Vice President, Chief
                                        Financial Officer and Secretary