Lakes / Idaho / Cassia County / Sublett Reservoir
Sublett Reservoir, Idaho
94.91 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Idaho
42.33 degrees N, 113.04 degrees W - Cassia 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 Sublett Reservoir Stacks Up
- Larger than 57% of the 316 lakes counted in Idaho.
- About 74 miles from Twin Falls, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Stone Reservoir | Oneida | 25 mi | 133.93 acres |
| Bonanza Lake | Power | 27 mi | 30.64 acres |
| Lake Walcott | Cassia | 27 mi | 11,782.92 acres |
| Daniels Reservoir | Oneida | 31 mi | 229.6 acres |
| Independence Lakes | Cassia | 33 mi | 26.84 acres |
| Hawkins Reservoir | Bannock | 38 mi | 49.63 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Sublett Reservoir
How Big Is Sublett Reservoir?
Sublett Reservoir covers 94.91 acres in Cassia County, Idaho.
What Is the Largest Lake in Cassia County?
Lake Walcott is the largest lake in Cassia County, at 11,782.92 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 65249129). Verified October 30, 2026.