Law Enforcement Agencies in Lewistown, MT MT › Fergus County Agencies serving the city of Lewistown in MT. Agency Types in Lewistown Coroners 1 agencies County Jails 3 agencies Municipal Police 1 agencies Sheriff 1 agencies All Agencies in Lewistown, MT Fergus County Coroners Office Fergus County Fergus County Jail Fergus County Fergus County Jail Fergus County Fergus County Jail Fergus County Fergus County Sheriffs Office Fergus County Lewistown Police Department Fergus County
