William Penn Annex Post Office

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

900 Market St Lobby, Philadelphia, PA 19107

Contact Numbers

Phone: 215-413-7743
Fax: 215-592-7749
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.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

William Penn Retail
720 Arch St
0.1 mile away

Continental
615 Chestnut St Lobby
0.2 mile away

John Wanamaker
1234 Market St
0.2 mile away

B Free Franklin
316 Market St
0.4 mile away

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