New Castle Carrier Annex Post Office

This Office has CLOSED permanently. Please check nearby locations below, or click to view other offices in New Castle.

20 E South St, New Castle, PA 16101

Contact Numbers

Phone: 724-652-3157
Fax: 724-656-7205
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

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


Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

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Nearby Post Offices:

Downtown New Castle
151 Cascade Galleria
0.1 mile away

New Castle 2
435 S Cascade St
1.1 miles away

New Castle
435 S Cascade St
1.1 miles away

Neshannock
4 E Maitland Ln
1.6 miles away

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