American Campus Communities (ACC) 10-K 2009 FY Annual report

Exhibit 32.1

Certification of Chief Executive Officer Pursuant to 18 U. S. C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

I, William C. Bayless, Jr., Chief Executive 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 Annual Report on Form 10-K of the Company for the annual period ended December 31, 2009 (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:   March 1, 2010	/s/ William C. Bayless, Jr.
	William C. Bayless, Jr.
	President and Chief Executive Officer