Post Offices
Post Offices in & near Chain of Rocks, Missouri. Operating hours, locations, phone/fax number, services information.
Old Monr Post Office
Post Office in Old Monroe, Missouri on Sycamore St. Operating hours, phone number, services information, and other locations.
Address: 104 Sycamore St, Old Monroe, MO 63369
Phone: 636-665-5486
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 8:30am - 11:30am, 1:00pm - 4:00pmTuesday 8:30am - 11:30am, 1:00pm - 4:00pm
Wednesday 8:30am - 11:30am, 1:00pm - 4:00pm
Thursday 8:30am - 11:30am, 1:00pm - 4:00pm
Friday 8:30am - 11:30am, 1:00pm - 4:00pm
Saturday 9:15am - 10:00am
Sunday Closed
Lobby Hours
Monday 3:45pmTuesday 3:45pm
Wednesday 3:45pm
Thursday 3:45pm
Friday 3:45pm
Saturday 9:45am
Sunday Closed
Last Collection Times
Monday 9:00am - 11:30am, 1:00pm - 3:00pmTuesday 9:00am - 11:30am, 1:00pm - 3:00pm
Wednesday 9:00am - 11:30am, 1:00pm - 3:00pm
Thursday 9:00am - 11:30am, 1:00pm - 3:00pm
Friday 9:00am - 11:30am, 1:00pm - 3:00pm
Saturday Closed
Sunday Closed
