UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 9, 2015

MID-AMERICA APARTMENT COMMUNITIES, INC.

MID-AMERICA APARTMENTS, L.P.

(Exact name of registrant as specified in its charter)

(901) 682-6600

(Registrant’s telephone number, including area code)

(Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

On November 9, 2015, Mid-America Apartments, L.P. (the “Operating Partnership”) issued and sold $400 million in aggregate principal amount of its 4.000% Senior Notes due 2025 (the “Notes”). The terms of the Notes are governed by an indenture, dated as of October 16, 2013 (the “Base Indenture”), among the Operating Partnership, as issuer, Mid-America Apartment Communities, Inc. (the “Company”), and U.S. Bank National Association, as trustee, as amended and supplemented by a third supplemental indenture, dated as of November 9, 2015 (the “Supplemental Indenture”), among the Operating Partnership, as issuer, the Company, and U.S. Bank National Association, as trustee.

The foregoing descriptions of the Notes, Base Indenture and Supplemental Indenture do not purport to be complete and are qualified in their entirety by the full text of the Base Indenture and Supplemental Indenture establishing the terms of the Notes, which are being filed as Exhibit 4.1 and Exhibit 4.2, respectively, to this Current Report on Form 8-K and are incorporated herein by reference.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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