The county is divided into 67 municipalities with the majority of the population residing in the urban and suburban areas. The population has remained over 200,000 for the last few decades and at present is slightly over 204,000. The county seat, the City of Washington, is located a short distance from the intersection of Interstates 70 and 79. Interstate 70 provides access to cities in the Midwest and to cities in the East via the Pennsylvania Turnpike. Interstate 79 links Washington to cities in the North and cities to the South.
Agriculture is a significant industry in Washington County.
7th in all other hay production and 7th in all hay production. The average farm size in the county is 142 acres. Washington County is well-known for its picturesque covered bridges and miles of scenic country roads. The county also has a noteworthy historical past. It was at the center of one of the most famous events of early American history, the Whiskey Rebellion.