Lakes / New Mexico / De Baca County / Lake Sumner
Lake Sumner, New Mexico
1,261.58 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - New Mexico
34.63 degrees N, 104.39 degrees W - De Baca County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Lake Sumner Stacks Up
- Larger than 94% of the 309 lakes counted in New Mexico.
- The largest lake in De Baca County among those counted.
- About 114 miles from Santa Fe, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Red Lake | De Baca | 21 mi | 390.66 acres |
| Laguna de los Terreros | Guadalupe | 27 mi | 28.66 acres |
| Bonner Lake | De Baca | 29 mi | 90.19 acres |
| Salitre Tank | Guadalupe | 32 mi | 27.06 acres |
| The Old Dry Lake | De Baca | 32 mi | 60.29 acres |
| Laguna Seca | Guadalupe | 37 mi | 30.64 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Sumner
How Big Is Lake Sumner?
Lake Sumner covers 1,261.58 acres in De Baca County, New Mexico.
What Is the Largest Lake in De Baca County?
Lake Sumner is the largest lake in De Baca County, at 1,261.58 acres.
Largest Lakes in New Mexico
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Navajo Reservoir | San Juan | 15,363.3 acres | - |
| 2 | Elephant Butte Reservoir | Sierra | 10,908.51 acres | - |
| 3 | Ute Reservoir | Quay | 5,446.35 acres | - |
| 4 | Caballo Reservoir | Sierra | 4,617.43 acres | - |
| 5 | Heron Reservoir | Rio Arriba | 4,497.07 acres | - |
All 309 New Mexico lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 140782501). Verified October 30, 2026.