Post Offices

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

Mason City Post Office

Post Office in Mason City, Iowa on N Delaware Ave Ste 100. Operating hours, phone number, services information, and other locations.

Address: 211 N Delaware Ave Ste 100, Mason City, IA 50401
Phone: 641-423-5231
Fax: 641-423-6918
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 8:30am - 5:00pm
Tuesday 8:30am - 5:00pm
Wednesday 8:30am - 5:00pm
Thursday 8:30am - 5:00pm
Friday 8:30am - 5:00pm
Saturday 10:30am - 12:30pm
Sunday Closed

Lobby Hours

Monday 6:00pm
Tuesday 6:00pm
Wednesday 6:00pm
Thursday 6:00pm
Friday 6:00pm
Saturday 6:00pm
Sunday Closed

Last Collection Times

Monday 8:30am - 12:30pm, 2:00pm - 3:30pm
Tuesday 8:30am - 12:30pm, 2:00pm - 3:30pm
Wednesday 8:30am - 12:30pm, 2:00pm - 3:30pm
Thursday 8:30am - 12:30pm, 2:00pm - 3:30pm
Friday 8:30am - 12:30pm, 2:00pm - 3:30pm
Saturday 8:30am - 10:30am
Sunday Closed