Town Hall Address 173 East Avenue C Fort Sumner, NM 88119 United States- De Baca County Website https://www.fortsumner.net Fire District 505-355-2401 1000 Sumner Avenue Fort Sumner, NM 88119 United States Town Clerk 575-355-2401 173 East Avenue C Fort Sumner, NM 88119 United States Tax Collector 575-355-2401 173 East Avenue C Fort Sumner, NM 88119 United States County De Baca