Westmoreland County is a county in the Commonwealth of Pennsylvania, United States, located in the Pittsburgh Metropolitan Statistical Area. As of the 2020 census, the population was 354,663. The county seat is Greensburg and the most populous community is Hempfield Township. It is named after Westmorland, a historic county of England. The county is part of the Southwest Pennsylvania region of the state.
Autumn on a small state road near the Pennsylvania Turnpike in Laurel Mountains.
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.
Washington County Courthouse
Washington County Courthouse
The F. Julius LeMoyne House serves as the headquarters of the Washington County Historical Society.
Citizens Library in Washington, PA