Washington County, PA, Washington City, County Seat
The Washington County Courthouse is located at 100 West Beau Street, Washington PA 15301; phone: 724‑228‑6700. Formed March 28, 1781; named for President Washington; originally part of Augusta County, ia. First court held here was two miles west on the Gabby farm, marked by granite block; inscription, "On this spot, was held in 1776 ...