Lakes / Idaho / Kootenai County / Fernan Lake
Fernan Lake, Idaho
364.97 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Idaho
47.67 degrees N, 116.73 degrees W - Kootenai 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 Fernan Lake Stacks Up
- Larger than 79% of the 316 lakes counted in Idaho.
- About 3 miles from Coeur d'Alene, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Hayden | Kootenai | 6.7 mi | 3,857.81 acres |
| Avondale Lake | Kootenai | 7.0 mi | 57.82 acres |
| Coeur d'Alene Lake | Kootenai | 9.3 mi | 26,891.64 acres |
| Alpine Lake | Kootenai | 9.8 mi | 41.41 acres |
| Chilco Lake | Kootenai | 13 mi | 33.11 acres |
| Blue Lake | Kootenai | 13 mi | 348.9 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Fernan Lake
How Big Is Fernan Lake?
Fernan Lake covers 364.97 acres in Kootenai County, Idaho.
What Is the Largest Lake in Kootenai County?
Coeur d'Alene Lake is the largest lake in Kootenai County, at 26,891.64 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 51737875). Verified October 30, 2026.