Liberty Township is one of twelve townships in Porter County, Indiana. As of the 2010 census, its population was 9,319. Liberty Township was organized in 1836. The town of Chesterton has grown south from Westchester Township and has incorporated parts of Liberty Township along State Route 49 near the Indiana Toll Road. Otherwise, there ar…Liberty Township is one of twelve townships in Porter County, Indiana. As of the 2010 census, its population was 9,319. Liberty Township was organized in 1836. The town of Chesterton has grown south from Westchester Township and has incorporated parts of Liberty Township along State Route 49 near the Indiana Toll Road. Otherwise, there are no incorporated communities within the township.