1
AWest Okoboji Lake
Dickinson County, Wisconsin · 2.5 mi from Center Lake
- +Two grade letters higher (F → A)
- ++13.4 ft water clarity
Cleaner Lakes Than Center Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Center Lake carries a Grade F (Very Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. West Okoboji Lake (Dickinson County, Grade A, 2.5 mi away) is the closest meaningful upgrade.
2
CUpper Gar Lake
Dickinson County, Wisconsin · 3.1 mi from Center Lake
- +Two grade letters higher (F → C)
- ++1.6 ft water clarity
3
CBig Spirit Lake
Dickinson County, Wisconsin · 5.5 mi from Center Lake
- +Two grade letters higher (F → C)
- ++3.2 ft water clarity
4
DEast Okoboji Lake
Dickinson County, Wisconsin · 2.4 mi from Center Lake
- +Higher grade (F → D)
- ++1.6 ft water clarity
How this list is built
Every lake on LakeQuality has a calculated grade from EPA Water Quality Portal samples — secchi depth, total phosphorus, and chlorophyll-a measured against Metropolitan Council thresholds. To suggest cleaner alternatives, we filter lakes within 30 miles to those with a strictly higher numeric score, then rank by grade improvement with a small proximity tiebreak. Cross-state and limited-data lakes are excluded so the list stays locally relevant.