Waterloo Annex Post Office

3314 Marnie Ave, Waterloo, IA 50701

Contact Numbers

Phone: 319-234-1240
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Carrier Facility: This location is for mail processing only. For retail services, please use one of the nearby locations below.

  • Business Line

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

300 Sycamore St
2.7 miles away

410 Jefferson St
3.4 miles away

Cedar Falls
221 W 6th St
3.4 miles away

111 Commercial St
7.1 miles away


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