Post Offices
Post Offices in & near Kaskaskia, Illinois. Operating hours, locations, phone/fax number, services information.
Saint Mary Post Office
Post Office in Saint Mary, Missouri on Bartels Industrial Dr. Operating hours, phone number, services information, and other locations.
Address: 17410 Bartels Industrial Dr, Saint Mary, MO 63673
Phone: 573-543-2144
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 10:00am - 2:00pmTuesday 10:00am - 2:00pm
Wednesday 10:00am - 2:00pm
Thursday 10:00am - 2:00pm
Friday 10:00am - 2:00pm
Saturday 10:15am - 12:15pm
Sunday Closed
Lobby Hours
Monday 11:45amTuesday 11:45am
Wednesday 11:45am
Thursday 11:45am
Friday 11:45am
Saturday 11:45am
Sunday Closed
Last Collection Times
Monday 10:00am - 2:00pmTuesday 10:00am - 2:00pm
Wednesday 10:00am - 2:00pm
Thursday 10:00am - 2:00pm
Friday 10:00am - 2:00pm
Saturday Closed
Sunday Closed