Exhibit 32.1

Certification of Co-Principal Executive Officers and Chief Financial Officer Pursuant to

18 U.S.C. Section 1350,

As Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of Apartment Income REIT, L.P. (the “Partnership”) for the period ended September 30, 2024, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of such officer’s knowledge, that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Partnership for the periods presented therein.

	APARTMENT INCOME REIT, L.P.
By:	AIR-GP LLC, its General Partner
By:	/s/ Lisa Cohn
	Lisa Cohn
	Co-Principal Executive Officer
	November 8, 2024

By:	/s/ Keith Kimmel
	Keith Kimmel
	Co-Principal Executive Officer
	November 8, 2024

By:	/s/ Paul Beldin
	Paul Beldin
	Executive Vice President and Chief Financial Officer
	November 8, 2024