Cleanest Lakes in Hennepin County, Minnesota
Little Long Lake in Hennepin County leads the rankings with a water quality grade of A and 19 ft of clarity. Below are the top 50 cleanest monitored lakes in Hennepin County, Minnesota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Little Long Lake | Hennepin | A | 19 ft | 21.3 µg/L | - |
| 2 | Pomerleau Lake | Hennepin | B | 10.3 ft | 20.5 µg/L | - |
| 3 | Riley Lake | Hennepin | B | 12.6 ft | 20 µg/L | - |
| 4 | Minnetonka Lake | Hennepin | B | 9.5 ft | 27 µg/L | - |
| 5 | Unnamed Lake | Hennepin | B | 4.3 ft | 17.5 µg/L | - |
| 6 | Fish Lake | Hennepin | B | 8.7 ft | 26.3 µg/L | - |
| 7 | Sweeney-Twin Lake | Hennepin | B | 8.2 ft | 22 µg/L | - |
| 8 | Sweeney Lake | Hennepin | B | 6.9 ft | 23 µg/L | - |
| 9 | Peter Lake | Hennepin | B | 9.9 ft | 43.4 µg/L | - |
| 10 | Magda Lake | Hennepin | B | 14.1 ft | 59 µg/L | - |
| 11 | Round Lake | Hennepin | C | 7.4 ft | 28 µg/L | 13.5 µg/L |
| 12 | Bryant Lake | Hennepin | C | 9.8 ft | 35 µg/L | - |
| 13 | Rice Marsh Lake | Hennepin | C | 7.7 ft | 34 µg/L | - |
| 14 | Bde Maka Ska Lake | Hennepin | C | 10.7 ft | 86 µg/L | - |
| 15 | Wirth Lake | Hennepin | C | 9.7 ft | 31.5 µg/L | - |
| 16 | Parkers Lake | Hennepin | C | 7.2 ft | 48.2 µg/L | - |
| 17 | Westwood Lake | Hennepin | C | 3.9 ft | 24 µg/L | - |
| 18 | Medicine Lake | Hennepin | C | 8.2 ft | 74.2 µg/L | - |
| 19 | Bass Lake | Hennepin | C | 4.8 ft | 31.5 µg/L | - |
| 20 | Normandale Lake | Hennepin | C | 3.5 ft | 57 µg/L | - |
| 21 | Silver Lake | Hennepin | C | 5.6 ft | 58 µg/L | - |
| 22 | Crystal Lake | Hennepin | C | 3.5 ft | 58 µg/L | - |
| 23 | Rebecca Lake | Hennepin | C | 4.4 ft | 44.9 µg/L | - |
| 24 | Harriet Lake | Hennepin | C | 10.5 ft | 185.5 µg/L | - |
| 25 | Idlewild Lake | Hennepin | C | 5.9 ft | 37 µg/L | - |
| 26 | Hyland Lake | Hennepin | C | 4.6 ft | 39.1 µg/L | - |
| 27 | Duck Lake | Hennepin | C | 6.2 ft | 34 µg/L | - |
| 28 | Lake of the Isles | Hennepin | C | 4.9 ft | 51.5 µg/L | - |
| 29 | Weaver Lake | Hennepin | C | 5.1 ft | 37.3 µg/L | - |
| 30 | Schmidt Lake | Hennepin | C | 5.6 ft | 51 µg/L | - |
| 31 | Forest Lake | Hennepin | C | 3.8 ft | 46.5 µg/L | - |
| 32 | Red Rock Lake | Hennepin | D | 2.8 ft | 35.5 µg/L | 17 µg/L |
| 33 | Unnamed Lake | Hennepin | D | 2.6 ft | 52.8 µg/L | - |
| 34 | Twin Lake | Hennepin | D | 5.9 ft | 65 µg/L | - |
| 35 | Whaletail Lake | Hennepin | D | 3.3 ft | 47.6 µg/L | - |
| 36 | Cedar Lake | Hennepin | D | 4.7 ft | 84.5 µg/L | - |
| 37 | Mitchell Lake | Hennepin | D | 3 ft | 37 µg/L | 23.8 µg/L |
| 38 | Mccoy Lake | Hennepin | D | 2.1 ft | 47 µg/L | - |
| 39 | Independence Lake | Hennepin | D | 4.9 ft | 66.3 µg/L | - |
| 40 | Thomas Lake | Hennepin | D | 3.4 ft | 78.3 µg/L | - |
| 41 | Meadow Lake | Hennepin | D | 3.9 ft | 78.5 µg/L | - |
| 42 | Schwappauf Lake | Hennepin | D | 4.4 ft | 65.1 µg/L | - |
| 43 | Eagle Lake | Hennepin | D | 3 ft | 64 µg/L | - |
| 44 | Arrowhead Lake | Hennepin | D | 2 ft | 83 µg/L | - |
| 45 | Camelot Lake | Hennepin | D | 1.3 ft | 75.2 µg/L | - |
| 46 | Nokomis Lake | Hennepin | D | 3.1 ft | 67 µg/L | - |
| 47 | Half Moon Lake | Hennepin | D | 3.9 ft | 115.8 µg/L | - |
| 48 | Sarah Lake | Hennepin | D | 3 ft | 78 µg/L | - |
| 49 | Tanager Lake | Hennepin | D | 2.3 ft | 82 µg/L | - |
| 50 | Brownie Lake | Hennepin | D | 4.8 ft | 1602 µg/L | - |