Warren County, Ohio

Warren County is a county located in the southwestern part of the U.S. state of Ohio. As of the 2020 census, the population was 242,337. Its county seat is... Wikipedia

• Founded:  May 1, 1803
• Total:  407 sq mi (1,054.13 km²)
• Land:  401 sq mi (1,038.59 km²)
• Water:  6 sq mi (15.54 km²)
• Data source:  DuckDuckGo