Nrs Tri County Post Office

1000 W Valley Rd, Southeastern, PA 19399

Contact Numbers

Phone: 610-964-6448
Fax: 610-964-5467
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 6:00pm
Tuesday 6:00pm
Wednesday 6:00pm
Thursday 6:00pm
Friday 6:00pm
Saturday 1:00pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday 10:00am - 6:00pm
Tuesday 10:00am - 6:00pm
Wednesday 10:00am - 6:00pm
Thursday 10:00am - 6:00pm
Friday 10:00am - 6:00pm
Saturday Closed
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • Lot Parking

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:

Tri County
1000 W Valley Rd
0.0 mile away

7 N Waterloo Rd
1.0 mile away

662 Lancaster Ave
1.1 miles away

King of Prussia
620 Allendale Rd Ste 125
1.7 miles away


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I want to sing the praises of the amazing associates at this office on W. Valley Road in the Southeastern Postal Location! There has not been one single time in the past many years that I have not received a smile/ smiles, help, humor, friendliness and appreciation for customers! This team is an excellent example of making a customer feel good doing even the most simple thing like mailing business letters and/ or packages! Three cheers for all of em! Collene Kennedy

* is not a part of, or affiliated with, the official United States Postal Service (USPS).