Post Offices
Post Offices in & near Ayr, North Dakota. Operating hours, locations, phone/fax number, services information.
Er Post Office
Post Office in Erie, North Dakota on Main Ave. Operating hours, phone number, services information, and other locations.
Address: 406 Main Ave, Erie, ND 58029
Phone: 701-668-2406
Fax: 605-357-4906
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 1:00pm - 3:00pmTuesday 1:00pm - 3:00pm
Wednesday 1:00pm - 3:00pm
Thursday 1:00pm - 3:00pm
Friday 1:00pm - 3:00pm
Saturday 10:30am - 11:45am
Sunday Closed
Lobby Hours
Monday 24 hoursTuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours
Last Collection Times
Monday 4:45pmTuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 4:30pm
Sunday Closed