Law Enforcement Agencies in Marengo, IA IA › Iowa County Agencies serving the city of Marengo in IA. Agency Types in Marengo Coroners 1 agencies County Jails 1 agencies Municipal Police 1 agencies Sheriff 1 agencies All Agencies in Marengo, IA Iowa County Jail Iowa County Iowa County Medical Examiner Office Iowa County Iowa County Sheriffs Office Iowa County Marengo Police Department Iowa County
