Lakes / Nebraska / Thayer County / Mumm Reservoir
Mumm Reservoir, Nebraska
33 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Nebraska
40.01 degrees N, 97.52 degrees W - Thayer 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 Mumm Reservoir Stacks Up
- Larger than 17% of the 660 lakes counted in Nebraska.
- About 70 miles from Lincoln, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Miller Reservoir | Thayer | 2.0 mi | 34 acres |
| Buckley Creek Reservoir 3-A | Jefferson | 11 mi | 30 acres |
| Buckley Creek Reservoir 3-C | Jefferson | 13 mi | 30 acres |
| Buckley Creek Reservoir 4-A | Jefferson | 14 mi | 46 acres |
| Buckley Creek Reservoir 4-B | Jefferson | 14 mi | 26 acres |
| Alexandria Reservoir | Jefferson | 18 mi | 31 acres |
Straight-line distance between lake centers.
Facts and Figures
Largest Lakes in Nebraska
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake McConaughy | Keith | 24,885 acres | - |
| 2 | Harlan County Lake | Harlan | 12,822 acres | - |
| 3 | Calamus Reservoir | Loup | 5,032 acres | - |
| 4 | Swanson Lake | Hitchcock | 4,661 acres | - |
| 5 | Sutherland Reservoir | Lincoln | 2,956 acres | - |
All 660 Nebraska lakes ranked by surface area
Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 106261045). Verified October 30, 2026.