Lakes / Idaho / Caribou County / Twentyfour Mile Reservoir
Twentyfour Mile Reservoir, Idaho
37.31 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Idaho
42.91 degrees N, 111.89 degrees W - Caribou 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 Twentyfour Mile Reservoir Stacks Up
- Larger than 22% of the 316 lakes counted in Idaho.
- About 41 miles from Idaho Falls, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Chesterfield Reservoir | Caribou | 4.0 mi | 1,264.44 acres |
| Blackfoot Reservoir | Caribou | 14 mi | 16,913.5 acres |
| Hole in the Rock | Caribou | 15 mi | 146.29 acres |
| Alexander Reservoir | Caribou | 21 mi | 1,007.26 acres |
| Little Valley Reservoir | Bonneville | 22 mi | 166.29 acres |
| Grays Lake | Bonneville | 27 mi | 337.33 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Twentyfour Mile Reservoir
How Big Is Twentyfour Mile Reservoir?
Twentyfour Mile Reservoir covers 37.31 acres in Caribou County, Idaho.
What Is the Largest Lake in Caribou County?
Blackfoot Reservoir is the largest lake in Caribou County, at 16,913.5 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 55060347). Verified October 30, 2026.