Law Enforcement Agencies in Plainfield, IN IN › Hendricks County Agencies serving the city of Plainfield in IN. Agency Types in Plainfield Adult Institutions 2 agencies Municipal Police 1 agencies State Agency 1 agencies All Agencies in Plainfield, IN Indiana Law Enforcement Academy Hendricks County Plainfield Correctional Facility Hendricks County Plainfield Police Department Hendricks County Reception Diagnostic Center Hendricks County
