Post Offices

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

New Castle Carrier Annex Post Office

New Castle Carrier Annex Post Office in New Castle, Pennsylvania on E South St. Operating hours, phone number, services information, and other locations.

Address: 20 E South St, New Castle, PA 16101
Phone: 724-652-3157
Fax: 724-656-7205
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Carrier Facility: This location is for mail processing only. For retail services, please use one of the nearby locations below.

Lobby Hours

Last Collection Times