High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Liberty Township is one of the seventeen townships of Highland County, Ohio, United States. The 2000 census found 9,798 people in the township, 3,430 of whom lived in the unincorporated portions of the township. The city of Hillsboro, the county seat of Highland County, is located in Liberty Township. It is one of twenty-five Liberty Townships statewide.