Fort Sumner, NM is a city located in De Baca County, New Mexico and has a land area of 1,602.78 square miles (2.59 km2). The water area for the city is 10.76 square miles or 27.87 km2. There is one unique zip code in Fort Sumner, New Mexico and it is 88119. The area code(s) for Fort Sumner is 575.
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