1 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Fort Sumner | 1 | 848 | 875 | -0.47% | 256 | 3 | Village |
Fort Sumner is the largest city in De Baca County, with a population of 848.
Fort Sumner is the smallest city in De Baca County, with a population of 848.
There is 1 city in De Baca County, New Mexico.