1
ANetta Lake
Anoka County, Minnesota · 3 mi from Coon Lake
- +Two grade letters higher (C → A)
- ++5.7 ft water clarity
- +Lower phosphorus (14.5 vs 23 µg/L)
Cleaner Lakes Than Coon Lake
2 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Coon Lake carries a Grade C (Fair) water quality score. Within 30 miles, 2 lakes hold a higher grade. Netta Lake (Anoka County, Grade A, 3 mi away) is the closest meaningful upgrade.
2
BHow 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.