Lakes / Nebraska / Loup County / Calamus Reservoir
Calamus Reservoir, Nebraska
5,032 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Nebraska
41.87 degrees N, 99.26 degrees W - Loup 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 Calamus Reservoir Stacks Up
- Ranks #3 for surface area among the Nebraska lakes counted so far - 5,032 acres.
- The largest lake in Loup County among those counted.
- About 81 miles from Grand Island, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Nichol Lake | Loup | 8.5 mi | 181 acres |
| Horseshoe Bend Lake | Loup | 8.5 mi | 36 acres |
| Carson Lake | Garfield | 16 mi | 310 acres |
| Bruner Lake | Holt | 21 mi | 55 acres |
| Clark Lake | Garfield | 22 mi | 44 acres |
| Willow Lake | Holt | 22 mi | 124 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Calamus Reservoir
How Big Is Calamus Reservoir?
Calamus Reservoir covers 5,032 acres in Loup County, Nebraska.
What Is the Largest Lake in Loup County?
Calamus Reservoir is the largest lake in Loup County, at 5,032 acres.
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 154576245). Verified October 30, 2026.