Lakes / Idaho / Jefferson County / Roberts Slough
Roberts Slough, Idaho
91.95 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Idaho
43.72 degrees N, 112.11 degrees W - Jefferson 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 Roberts Slough Stacks Up
- Larger than 56% of the 316 lakes counted in Idaho.
- About 16 miles from Idaho Falls, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Butte Slough | Jefferson | 6.7 mi | 42.14 acres |
| Rays Lake | Jefferson | 16 mi | 597.9 acres |
| Leavitz Pond | Jefferson | 16 mi | 212.23 acres |
| Sandhole Lake | Jefferson | 16 mi | 201.73 acres |
| Two-way Pond | Jefferson | 17 mi | 64 acres |
| Quayles Lake | Fremont | 18 mi | 149.25 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Roberts Slough
How Big Is Roberts Slough?
Roberts Slough covers 91.95 acres in Jefferson County, Idaho.
What Is the Largest Lake in Jefferson County?
Mud Lake is the largest lake in Jefferson County, at 3,117.73 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 {E87FE50A-08A2-4693-A4D4-BF958DFBC693}). Verified October 30, 2026.