Tri County Post Office

1000 W Valley Rd, Southeastern, PA 19399

Contact Numbers

Phone: 610-964-6401
Fax: 610-964-6458
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:

Southeastern Pa S and DC
1000 W Valley Rd
0.0 mile away

Devon
7 N Waterloo Rd
1.0 mile away

Berwyn
662 Lancaster Ave
1.1 miles away

King of Prussia
620 Allendale Rd Ste 125
1.7 miles away

Reviews

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The postal workers at SE are terrific! Always cheerful, helpful and amazing. I use this site almost every day and despite Covid, winter storms, summer heat etc. I am impressed by all of them!
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