United States Post Office · Prince William County, VA

Traingle Post Office

18627 OLD TRIANGLE ROAD

Prince William County, VA 22172

Address

18627 Old Triangle Road, Triangle, VA 22172

Phone

+1 703-221-9546

Opening hours

Hours may differ on public holidays.

Website

tools.usps.com/locations/home.htm?location=1385003

Coordinates

38.545707, -77.332191

This listing is based on OpenStreetMap data (updated 2026-10-06). Something wrong? Fix it on OpenStreetMap or let us know.

Frequently asked questions

Where is Traingle Post Office?

Traingle Post Office is located at 18627 Old Triangle Road, Triangle, VA 22172. Use “Get directions” to start a route from where you are.

What is the phone number of Traingle Post Office?

The listed phone number is +1 703-221-9546.

What are the opening hours of Traingle Post Office?

Recorded opening hours: Monday – Friday 8:30 AM–5 PM; Saturday 8:30 AM–12 PM; Sunday Closed. Hours may differ on holidays.