1
BGreen Lake
Green Lake County, Wisconsin · 6.3 mi from Little Green Lake
- +Two grade letters higher (D → B)
- ++4.4 ft water clarity
- +Lower phosphorus (23 vs 91.7 µg/L)
Cleaner Lakes Than Little Green Lake
4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Little Green Lake carries a Grade D (Poor) water quality score. Within 30 miles, 4 lakes hold a higher grade. Green Lake (Green Lake County, Grade B, 6.3 mi away) is the closest meaningful upgrade.
2
BGreen Lake
Green Lake County, Wisconsin · 5 mi from Little Green Lake
- +Two grade letters higher (D → B)
- ++5.2 ft water clarity
- +Lower phosphorus (32 vs 91.7 µg/L)
3
BGreen Lake East Basin
Green Lake County, Wisconsin · 6.3 mi from Little Green Lake
- +Two grade letters higher (D → B)
- ++2.9 ft water clarity
- +Lower phosphorus (43 vs 91.7 µg/L)
4
CGreen Lake
Green Lake County, Wisconsin · 4.8 mi from Little Green Lake
- +Higher grade (D → C)
- ++4.2 ft water clarity
- +Lower phosphorus (66.5 vs 91.7 µg/L)
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.