1
AEast Sylvia Lake
Wright County, Minnesota · 1.8 mi from John Lake
- +Higher grade (B → A)
- ++13.2 ft water clarity
- +Lower phosphorus (8 vs 22 µg/L)
Cleaner Lakes Than John Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
John Lake carries a Grade B (Good) water quality score. Within 30 miles, 5 lakes hold a higher grade. East Sylvia Lake (Wright County, Grade A, 1.8 mi away) is the closest meaningful upgrade.
2
AWest Sylvia Lake
Wright County, Minnesota · 2.8 mi from John Lake
- +Higher grade (B → A)
- ++13.5 ft water clarity
- +Lower phosphorus (8 vs 22 µg/L)
3
BPleasant Lake
Wright County, Minnesota · 2.1 mi from John Lake
- +Higher overall water quality score
- ++2.5 ft water clarity
4
BClearwater Lake
Wright County, Minnesota · 3.4 mi from John Lake
- +Higher overall water quality score
- ++1.7 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.