Post Offices

Post Offices in & near Dayton, Pennsylvania. Operating hours, locations, phone/fax number, services information.

Williamstown Post Office

Post Office in Williamstown, Pennsylvania on N West St. Operating hours, phone number, services information, and other locations.

Address: 120 N West St, Williamstown, PA 17098
Phone: 717-647-9324
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:00am - 11:00am, 12:00pm - 4:00pm
Tuesday 9:00am - 11:00am, 12:00pm - 4:00pm
Wednesday 9:00am - 11:00am, 12:00pm - 4:00pm
Thursday 9:00am - 11:00am, 12:00pm - 4:00pm
Friday 9:00am - 11:00am, 12:00pm - 4:00pm
Saturday 8:00am - 12:00pm
Sunday Closed

Lobby Hours

Monday 9:00am - 11:00am, 12:00pm - 4:00pm
Tuesday 9:00am - 11:00am, 12:00pm - 4:00pm
Wednesday 9:00am - 11:00am, 12:00pm - 4:00pm
Thursday 9:00am - 11:00am, 12:00pm - 4:00pm
Friday 9:00am - 11:00am, 12:00pm - 4:00pm
Saturday 8:00am - 12:00pm
Sunday Closed

Last Collection Times

Monday 3:30pm
Tuesday 3:30pm
Wednesday 3:30pm
Thursday 3:30pm
Friday 3:30pm
Saturday 11:45am
Sunday Closed