Post Offices

Post Offices in & near Onawa, Iowa. Operating hours, locations, phone/fax number, services information.

Onawa Post Office

Post Office in Onawa, Iowa on Iowa Ave. Operating hours, phone number, services information, and other locations.

Address: 1017 Iowa Ave, Onawa, IA 51040
Phone: 712-423-2811
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 8:15am - 4:15pm
Tuesday 8:15am - 4:15pm
Wednesday 8:15am - 4:15pm
Thursday 8:15am - 4:15pm
Friday 8:15am - 4:15pm
Saturday 8:30am - 10:30am
Sunday Closed

Lobby Hours

Monday 4:30pm
Tuesday 4:30pm
Wednesday 4:30pm
Thursday 4:30pm
Friday 4:30pm
Saturday 4:30pm
Sunday Closed

Last Collection Times

Monday 7:00am - 3:00pm
Tuesday 7:00am - 3:00pm
Wednesday 7:00am - 3:00pm
Thursday 7:00am - 3:00pm
Friday 7:00am - 3:00pm
Saturday 7:00am - 9:30am
Sunday Closed