Cleanest Lakes in Dickinson County, Iowa
West Okoboji Lake in Dickinson County leads the rankings with a water quality grade of A and 15.7 ft of clarity. Below are the top 8 cleanest monitored lakes in Dickinson County, Iowa, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | West Okoboji Lake | Dickinson | A | 15.7 ft | - | 2.6 µg/L |
| 2 | Upper Gar Lake | Dickinson | C | 3.9 ft | - | 13.1 µg/L |
| 3 | Big Spirit Lake | Dickinson | C | 5.5 ft | - | 16.3 µg/L |
| 4 | Lake Minnewashta | Dickinson | D | 2.8 ft | - | 19 µg/L |
| 5 | East Okoboji Lake | Dickinson | D | 3.9 ft | - | 25.3 µg/L |
| 6 | Lower Gar Lake | Dickinson | D | 2.6 ft | - | 20.7 µg/L |
| 7 | Silver Lake Max Depth | Dickinson | F | 2.7 ft | - | 38.3 µg/L |
| 8 | Center Lake | Dickinson | F | 2.3 ft | - | 39.6 µg/L |