Butler County, Ohio

Butler County is a county in the U.S. state of Ohio. In 2020, 390,357 people lived there.^[2] The county seat is Hamilton.

Butler County
County
Butler County Courthouse
Seal
Location within the U.S. state of Ohio
Ohio's location within the U.S.
Coordinates: 39°26′N 84°35′W
Country	United States
State	Ohio
Founded	May 1, 1803[1]
Named for	General Richard Butler
Seat	Hamilton
Largest city	Hamilton
Area
• Total	470 sq mi (1,200 km2)
• Land	467 sq mi (1,210 km2)
• Water	3.1 sq mi (8 km2)  0.7%
Population  (2020)
• Total	390,357
• Density	830/sq mi (320/km2)
Time zone	UTC−5 (Eastern)
• Summer (DST)	UTC−4 (EDT)
Congressional district	8th
Website	www.butlercountyohio.org