Cleanest Lakes in Kootenai County, Idaho
Thompson Lake in Kootenai County leads the rankings with a water quality grade of NR. Below are the top 19 cleanest monitored lakes in Kootenai County, Idaho, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Thompson Lake | Kootenai | NR | - | - | - |
| 2 | Anderson Lake | Kootenai | NR | - | - | - |
| 3 | Thompson Lake | Kootenai | NR | - | - | - |
| 4 | Harrison Slough | Kootenai | NR | - | - | - |
| 5 | Chatcolet Lake | Kootenai | NR | - | - | - |
| 6 | Blue Lake | Kootenai | NR | - | - | - |
| 7 | Swan Lake | Kootenai | NR | - | - | - |
| 8 | Black Lake | Kootenai | NR | - | - | - |
| 9 | Medicine Lake | Kootenai | NR | - | - | - |
| 10 | Cave Lake | Kootenai | NR | - | - | - |
| 11 | Killarney Lake | Kootenai | NR | - | - | - |
| 12 | Rose Lake | Kootenai | NR | - | - | - |
| 13 | Lake Hayden | Kootenai | NR | - | - | - |
| 14 | Alpine Lake | Kootenai | NR | - | - | - |
| 15 | Chilco Lake | Kootenai | NR | - | - | - |
| 16 | Avondale Lake | Kootenai | NR | - | - | - |
| 17 | Fernan Lake | Kootenai | NR | - | - | - |
| 18 | Hauser Lake | Kootenai | NR | - | - | - |
| 19 | Spirit Lake | Kootenai | NR | - | - | - |
More Answers for Kootenai County, Idaho
Get Kootenai County, Idaho water-quality updates
New grades and algae readings can change this ranking. Unsubscribe anytime.