Union Township

West Chester Township is one of the thirteen townships in Butler County, Ohio, United States. It is the most populous township in Ohio, with a population of 65,242 at the 2020 census. The township is located in the southeastern corner of Butler County, between Sharonville and Liberty Township. West Chester is about 18 miles (29 km) north of Cincinnati and is included in the Cincinnati metropolitan area. Exits 19, 21 and 22 off Interstate 75 serve West Chester.