Liberty Township is one of the thirteen townships of Fairfield County, Ohio, United States. As of the 2010 census the population was 7,916, of whom 4,950 lived in the unincorporated portions of the township.GeographyLocated in the northern part of the county, it borders the following townships: Harrison Township, Licking County - northUnion Township, Licking County - northeast cornerWalnut Township - eastPleasant Township - southeastGreenfield Township - southBloom Township - southwest cornerViolet Township - westEtna Township, Licking County - northwest The village of Baltimore is located in southeastern Liberty Township.Name and historyLiberty Township was named for the American ideal of liberty. It is one of twenty-five Liberty Townships statewide.