Lakes / Idaho / Valley County / Lake Cascade
Lake Cascade, Idaho
25,043.4 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Idaho
44.60 degrees N, 116.10 degrees W - Valley 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 Cascade Stacks Up
- Ranks #4 for surface area among the Idaho lakes counted so far - 25,043.4 acres.
- The largest lake in Valley County among those counted.
- About 68 miles from Boise, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Jemima K Reservoir | Valley | 4.8 mi | 84.85 acres |
| Davis Reservoir | Valley | 7.6 mi | 87.25 acres |
| Horsethief Reservoir | Valley | 11 mi | 247.46 acres |
| Corral Creek Reservoir | Valley | 13 mi | 31.41 acres |
| Herrick Reservoir | Valley | 17 mi | 44.11 acres |
| Upper Jug Creek Reservoir | Valley | 17 mi | 68.74 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Cascade
How Big Is Lake Cascade?
Lake Cascade covers 25,043.4 acres in Valley County, Idaho.
What Is the Largest Lake in Valley County?
Lake Cascade is the largest lake in Valley County, at 25,043.4 acres.
Largest Lakes in Idaho
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Pend Oreille | Bonner | 92,764.44 acres | - |
| 2 | American Falls Reservoir | Power | 55,319.78 acres | - |
| 3 | Coeur d'Alene Lake | Kootenai | 26,891.64 acres | - |
| 4 | Lake Cascade | Valley | 25,043.4 acres | - |
| 5 | Priest Lake | Bonner | 23,425.59 acres | - |
All 316 Idaho lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 42401469). Verified October 30, 2026.