Post Offices
Post Offices in & near Gray Summit, Missouri. Operating hours, locations, phone/fax number, services information.
Gray Summ Post Office
Post Office in Gray Summit, Missouri on Highway 100. Operating hours, phone number, services information, and other locations.
Address: 2666 Highway 100, Gray Summit, MO 63039
Phone: 636-742-4299
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 8:00am - 11:00am, 11:30am - 2:30pmTuesday 8:00am - 11:00am, 11:30am - 2:30pm
Wednesday 8:00am - 11:00am, 11:30am - 2:30pm
Thursday 8:00am - 11:00am, 11:30am - 2:30pm
Friday 8:00am - 11:00am, 11:30am - 2:30pm
Saturday Closed
Sunday Closed
Lobby Hours
Monday 11:30amTuesday 11:30am
Wednesday 11:30am
Thursday 11:30am
Friday 11:30am
Saturday 9:00am
Sunday Closed
Last Collection Times
Monday 9:00am - 11:00am, 11:30am - 2:00pmTuesday 9:00am - 11:00am, 11:30am - 2:00pm
Wednesday 9:00am - 11:00am, 11:30am - 2:00pm
Thursday 9:00am - 11:00am, 11:30am - 2:00pm
Friday 9:00am - 11:00am, 11:30am - 2:00pm
Saturday Closed
Sunday Closed