Cleanest Lakes in Beltrami County, Minnesota
Round Lake in Beltrami County leads the rankings with a water quality grade of A and 18 ft of clarity. Below are the top 50 cleanest monitored lakes in Beltrami County, Minnesota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Round Lake | Beltrami | A | 18 ft | 7 µg/L | - |
| 2 | Long Lake | Beltrami | A | 20 ft | 7 µg/L | - |
| 3 | Fullers Lake: East Basin | Beltrami | A | 15 ft | 9.5 µg/L | - |
| 4 | Andrusia Lake | Beltrami | A | 15.1 ft | 14 µg/L | - |
| 5 | Green Lake | Beltrami | A | 18.5 ft | 7 µg/L | - |
| 6 | Island Lake | Beltrami | A | 16 ft | 10 µg/L | - |
| 7 | Moose Lake | Beltrami | A | 15.1 ft | 11 µg/L | - |
| 8 | Sandy Lake | Beltrami | A | 16 ft | 8 µg/L | - |
| 9 | Little Bass Lake | Beltrami | A | 16 ft | 10 µg/L | - |
| 10 | North Twin Lake | Beltrami | A | 17.4 ft | 8 µg/L | - |
| 11 | Shemahgun Lake | Beltrami | A | 15 ft | 10 µg/L | - |
| 12 | Kinney Lake | Beltrami | A | 15 ft | 8 µg/L | - |
| 13 | Swenson Lake | Beltrami | A | 20.7 ft | 8 µg/L | - |
| 14 | Squaw Smith Lake | Beltrami | A | 20 ft | 10 µg/L | - |
| 15 | South Twin Lake | Beltrami | A | 16.7 ft | 8.5 µg/L | - |
| 16 | Little Thunder Lake | Beltrami | A | 15 ft | 12 µg/L | - |
| 17 | Buzzle Lake | Beltrami | A | 17.1 ft | 8.5 µg/L | - |
| 18 | Cass Lake Allens Bay | Beltrami | A | 16.6 ft | - | 4.7 µg/L |
| 19 | Cass Lake | Beltrami | A | 18.5 ft | - | 3.2 µg/L |
| 20 | Whitefish Lake | Beltrami | A | 12.5 ft | 15.5 µg/L | - |
| 21 | Long Lake | Beltrami | A | 10 ft | 17 µg/L | - |
| 22 | Long Lake | Beltrami | A | 14 ft | 8 µg/L | - |
| 23 | Shell Lake | Beltrami | A | 13 ft | 11 µg/L | - |
| 24 | Grace Lake | Beltrami | A | 15 ft | 21.5 µg/L | - |
| 25 | Deer Lake | Beltrami | A | 11 ft | 15 µg/L | - |
| 26 | Green Lake | Beltrami | A | 12 ft | 10 µg/L | - |
| 27 | Turtle Lake | Beltrami | A | 10.2 ft | 15 µg/L | - |
| 28 | Sandy Lake | Beltrami | A | 14 ft | 18 µg/L | - |
| 29 | Heart Lake | Beltrami | A | 14.5 ft | 10 µg/L | - |
| 30 | Bemidji Lake | Beltrami | A | 12.5 ft | 16.5 µg/L | - |
| 31 | Balm Lake | Beltrami | A | 11.5 ft | 17.5 µg/L | - |
| 32 | Three Island Lake | Beltrami | A | 11.8 ft | 17 µg/L | - |
| 33 | Beltrami Lake | Beltrami | A | 11.2 ft | 15 µg/L | - |
| 34 | Stump Lake | Beltrami | A | 13 ft | 19.5 µg/L | - |
| 35 | Fox Lake | Beltrami | A | 11.2 ft | 13 µg/L | - |
| 36 | Buck Lake | Beltrami | A | 12 ft | - | 4.3 µg/L |
| 37 | Big Bass Lake | Beltrami | A | 10.5 ft | 14 µg/L | - |
| 38 | Grant Lake | Beltrami | A | 10.7 ft | 11.5 µg/L | - |
| 39 | Movil Lake | Beltrami | A | 14 ft | 12 µg/L | - |
| 40 | No-Name Lake | Beltrami | A | 13 ft | 11 µg/L | - |
| 41 | Lindgren Lake | Beltrami | A | 13 ft | 14 µg/L | - |
| 42 | Fullers Lake: West Basin | Beltrami | A | 13 ft | 12.5 µg/L | - |
| 43 | Dickens Lake | Beltrami | A | 11 ft | 15 µg/L | - |
| 44 | Chain: Middle Lake | Beltrami | A | 11.3 ft | 14 µg/L | - |
| 45 | Big Thunder Lake | Beltrami | A | 11.5 ft | 13 µg/L | - |
| 46 | Chain: South Lake | Beltrami | A | 11 ft | 14 µg/L | - |
| 47 | Bass Lake: Northwest Basin | Beltrami | A | 11 ft | 12 µg/L | - |
| 48 | Little Big Lake | Beltrami | B | 9.3 ft | 13.5 µg/L | 2.8 µg/L |
| 49 | Emerald Lake | Beltrami | B | 9.5 ft | 12 µg/L | - |
| 50 | Big Lake | Beltrami | B | 9.7 ft | 15 µg/L | - |