Post Offices

Post Offices in & near Promise, South Dakota. Operating hours, locations, phone/fax number, services information.

Trail City Post Office

Post Office in Trail City, South Dakota on N Main St. Operating hours, phone number, services information, and other locations.

Address: 130 N Main St, Trail City, SD 57657
Phone: 605-845-3473
Fax: 605-357-4906
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:00am - 11:00am
Tuesday 9:00am - 11:00am
Wednesday 9:00am - 11:00am
Thursday 9:00am - 11:00am
Friday 9:00am - 11:00am
Saturday 10:00am - 11:30am
Sunday Closed

Lobby Hours

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 10:15am
Tuesday 10:15am
Wednesday 10:15am
Thursday 10:15am
Friday 10:15am
Saturday 10:15am
Sunday Closed