Post Offices

Post Offices in & near New Windsor, Maryland. Operating hours, locations, phone/fax number, services information.

New Windsor Post Office

Post Office in New Windsor, Maryland on Maple Ave. Operating hours, phone number, services information, and other locations.

Address: 204 Maple Ave, New Windsor, MD 21776
Phone: 410-635-2151
Fax: 410-635-2400
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:00am - 1:00pm, 2:00pm - 5:00pm
Tuesday 9:00am - 1:00pm, 2:00pm - 5:00pm
Wednesday 9:00am - 1:00pm, 2:00pm - 5:00pm
Thursday 9:00am - 1:00pm, 2:00pm - 5:00pm
Friday 9:00am - 1:00pm, 2:00pm - 5:00pm
Saturday 9:00am - 12:00pm
Sunday Closed

Lobby Hours

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 4:15pm
Tuesday 4:15pm
Wednesday 4:15pm
Thursday 4:15pm
Friday 4:15pm
Saturday 11:30am
Sunday Closed