Law Enforcement Agencies in Ewing, NJ NJ › Mercer County Agencies serving the city of Ewing in NJ. Agency Types in Ewing Airport Police 1 agencies Campus Police 1 agencies Municipal Police 1 agencies Youth Institutions 1 agencies All Agencies in Ewing, NJ Ewing Twp Police Department Mercer County Juvenile Justice Commission Mercer County The College of New Jersey Mercer County Trenton Mercer Airport Mercer County
