Post Offices

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

Fairfield Post Office

Post Office in Fairfield, Montana on 1st Ave S. Operating hours, phone number, services information, and other locations.

Address: 409 1st Ave S, Fairfield, MT 59436
Phone: 406-467-2715
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 7:30am - 12:30pm, 1:30pm - 4:30pm
Tuesday 7:30am - 12:30pm, 1:30pm - 4:30pm
Wednesday 7:30am - 12:30pm, 1:30pm - 4:30pm
Thursday 7:30am - 12:30pm, 1:30pm - 4:30pm
Friday 7:30am - 12:30pm, 1:30pm - 4:30pm
Saturday 9:00am - 11:00am
Sunday Closed

Lobby Hours

Monday 4:30pm
Tuesday 4:30pm
Wednesday 4:30pm
Thursday 4:30pm
Friday 4:30pm
Saturday 11:00am
Sunday Closed

Last Collection Times

Monday 7:30am - 12:30pm, 1:30pm - 3:00pm
Tuesday 7:30am - 12:30pm, 1:30pm - 3:00pm
Wednesday 7:30am - 12:30pm, 1:30pm - 3:00pm
Thursday 7:30am - 12:30pm, 1:30pm - 3:00pm
Friday 7:30am - 12:30pm, 1:30pm - 3:00pm
Saturday Closed
Sunday Closed