Plainfield Township is located in Will County, Illinois. The population was 80,319 at the 2010 census. Plainfield Township government serves the residents in the Illinois communities of Plainfield, Joliet, Romeoville and Crest Hill. Plainfield Township's boundaries run to the North by 135th Street, to the South by Theodore Street, to the East by Gaylord Road and to the West by County Line Road.
See also Plainfield Public Library District
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Coordinates: 41°35′19″N 88°11′18″W / 41.588580°N 088.188472°W / 41.588580; -088.188472
