
Fort Sumner
- County:
- De Baca County
- County Seat:
- No
- Area (mi²):
- 3.315
- State:
- New Mexico
Fort Sumner is a village located in De Baca County, New Mexico. Fort Sumner has a 2025 population of 853. Fort Sumner is currently declining at a rate of -0.58% annually and its population has decreased by -2.74% since the most recent census, which recorded a population of 877 in 2020.
The average household income in Fort Sumner is $67,481 with a poverty rate of 17.16%. The median age in Fort Sumner is 27.9 years: 27.3 years for males, and 36.2 years for females.