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