High Quality Content by WIKIPEDIA articles! Liberty Township, one of thirteen townships in Butler County, Ohio, United States, is in the east-central part of the county, just south of the city of Monroe. With an area of about twenty-eight square miles it is smallest of the thirteen townships but one of the fastest growing areas in southwest Ohio, having a population of 22,819 in 2000, up sharply from 9,249 in 1990; of this total, 22,005 people lived in the unincorporated portions of the township. It was named for Liberty, Pennsylvania, at the suggestion of John Morrow, a resident in the township at the time of its formation in 1803 who was the brother of Governor Jeremiah Morrow, after his hometown. The first settler was John Nelson, who arrived in 1796, seven years before Ohio became a state. It is one of twenty-five Liberty Townships statewide.