Kandiyohi County Lake Quality
Minnesota, 35 lakes, average grade D (Poor)
There are 35 graded lakes in Kandiyohi County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. On average, Kandiyohi County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is George Lake (A); the most-stressed is Wakanda Lake (F).
Quick Answers for Kandiyohi County
Planning a trip? Check special fishing regulations for George Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Minnesota regulations index.
DNR Reports (73)
Minnesota DNR LakeFinder resources for lakes in Kandiyohi County. Showing 12 most recent — browse all reports →
- —Fisheries Lake Survey — WillmarFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — UnnamedFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — GamesFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — NestFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — Lake MonongaliaFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — MiddleFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — LongFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — LongFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — Big KandiyohiFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — HendersonFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — GreenFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — GeorgeFisheries Lake Survey · MN DNR LakeFinder
All Lakes in Kandiyohi County
| Rank | Lake | Grade | Clarity | Max Depth | Phosphorus |
|---|---|---|---|---|---|
| 1 | George Lake | A | 15 ft | 34 ft | 14 µg/L |
| 2 | Long Lake | A | 10.5 ft | 46 ft | 13 µg/L |
| 3 | Green Lake | A | 13.1 ft | 110 ft | 14 µg/L |
| 4 | Henderson Lake | A | 13.5 ft | 57 ft | 9 µg/L |
| 5 | Elkhorn Lake | A | 14.1 ft | 41 ft | 15 µg/L |
| 6 | Florida Lake | B | 12.5 ft | 40 ft | 20 µg/L |
| 7 | Crow River Mill Pond | B | 10.2 ft | 14 ft | - |
| 8 | Calhoun Lake | B | 7.3 ft | 13 ft | 23.5 µg/L |
| 9 | Eagle Lake | C | 6.4 ft | 67 ft | 23 µg/L |
| 10 | Andrew Lake | C | 9 ft | 26 ft | - |
| 11 | Crow R Mill Pond | C | 6 ft | 14 ft | 24 µg/L |
| 12 | Carrie Lake | C | 4.5 ft | 26 ft | 23 µg/L |
| 13 | Games Lake | C | 5.6 ft | 42 ft | 29.5 µg/L |
| 14 | Nest Lake | C | 7.3 ft | 40 ft | 30 µg/L |
| 15 | Middle Lake | C | 5.4 ft | 11 ft | 31.5 µg/L |
| 16 | Mud Lake | D | 6.2 ft | 14 ft | - |
| 17 | Norway Lake | D | 3 ft | 42 ft | 58 µg/L |
| 18 | Diamond Lake | D | 5 ft | 27 ft | 68 µg/L |
| 19 | Long Lake | D | 3 ft | 16 ft | 88 µg/L |
| 20 | East Solomon Lake | D | 2.6 ft | 14 ft | 77 µg/L |
| 21 | Foot Lake | D | 2.3 ft | 24 ft | 60 µg/L |
| 22 | Willmar Lake | D | 2 ft | 14 ft | 72 µg/L |
| 23 | Big Kandiyohi Lake | D | 5.2 ft | 18 ft | 145 µg/L |
| 24 | Wakanda Lake | F | 0.5 ft | - | - |
| 25 | Saint Johns Lake | F | 0.5 ft | - | 188 µg/L |
| 26 | Wheeler North Lake | F | 1 ft | - | 303 µg/L |
| 27 | Schultz Lake | F | 1.6 ft | - | 182.5 µg/L |
| 28 | Johnson Lake | F | 1.6 ft | 18 ft | 96 µg/L |
| 29 | Wheeler South Lake | F | 2 ft | - | 121 µg/L |
| 30 | Florida Slough Lake | F | 1 ft | - | - |
| 31 | Elizabeth Lake | F | 2.6 ft | 9 ft | 111 µg/L |
| 32 | Little Kandiyohi Lake | F | 1 ft | - | 391 µg/L |
| 33 | Lake Monongalia | F | 3.3 ft | 14 ft | - |
| 34 | Upper Tad Lake | F | 1 ft | 8 ft | 499.5 µg/L |
| 35 | Tadd Lake | F | 1.6 ft | 8 ft | 303 µg/L |
Source: EPA National Aquatic Resource Surveys, 2026.