Post Offices

Post Offices in & near Black Jack, Missouri. Operating hours, locations, phone/fax number, services information.

Florissan Post Office

Post Office in Florissant, Missouri on N Highway 67. Operating hours, phone number, services information, and other locations.

Address: 2200 N Highway 67, Florissant, MO 63033
Phone: 314-830-6101
Fax: 314-839-8741
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 8:30am - 6:30pm
Tuesday 8:30am - 6:30pm
Wednesday 8:30am - 6:30pm
Thursday 8:30am - 6:30pm
Friday 8:30am - 6:30pm
Saturday 9:00am - 2:00pm
Sunday Closed

Lobby Hours

Monday 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 3:00pm
Sunday Closed

Last Collection Times

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