Deemston is a borough in Washington County, Pennsylvania, United States and part of the Pittsburgh metropolitan area since 1950. The population was 751 at the 2020 census.
Kinder's Mill, a historic site in the borough
Washington County, Pennsylvania
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