Washington County, Pennsylvania
Washington County | |
|---|---|
Location within the U.S. state of Pennsylvania | |
Pennsylvania's location within the U.S. | |
| Coordinates: 40°11′N 80°15′W / 40.19°N 80.25°W | |
| Country | United States |
| State | Pennsylvania |
| Founded | March 28, 1781 |
| Named after | George Washington |
| Seat | Washington |
| Largest city | Peters Township |
| Government | |
| • Chairman of the Board of Commissioners | Nick Sherman |
| Area | |
• Total | 861 sq mi (2,230 km2) |
| • Land | 857 sq mi (2,220 km2) |
| • Water | 3.9 sq mi (10 km2) 0.5% |
| Population (2020) | |
• Total | 209,349 |
| • Density | 240/sq mi (90/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional district | 14th |
| Website | washingtoncopa |
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Washington County is a county in the Commonwealth of Pennsylvania, United States. As of the 2020 census, the population was 209,349. Its county seat is Washington. The county is part of the Greater Pittsburgh region of the state. The county is home to Washington County Airport, three miles (4.8 km) southwest of Washington.