Lakes / Idaho / Bear Lake County / Mud Lake
Mud Lake, Bear Lake County, Idaho
3,486.45 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Idaho
42.14 degrees N, 111.29 degrees W - Bear Lake 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 Mud Lake Stacks Up
- Larger than 93% of the 316 lakes counted in Idaho.
- The largest lake in Bear Lake County among those counted.
- About 101 miles from Idaho Falls, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Merkley Lake | Bear Lake | 2.7 mi | 46.13 acres |
| Montpelier Reservoir | Bear Lake | 16 mi | 120.97 acres |
| Oneida Narrows Reservoir | Franklin | 25 mi | 429.96 acres |
| Glendale Reservoir | Franklin | 26 mi | 207.57 acres |
| Johnson Reservoir | Franklin | 26 mi | 43.98 acres |
| Lamont Reservoir | Franklin | 27 mi | 88.46 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Mud Lake
How Big Is Mud Lake?
Mud Lake covers 3,486.45 acres in Bear Lake County, Idaho.
What Is the Largest Lake in Bear Lake County?
Mud Lake is the largest lake in Bear Lake County, at 3,486.45 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 {1ED36C63-B4EF-4BA7-8660-15E6AB2166FE}). Verified October 30, 2026.