1
BSnail Lake
Ramsey County, Minnesota · 1.3 mi from Island Lake
- +Two grade letters higher (D → B)
- ++7.2 ft water clarity
- +Lower phosphorus (20 vs 62 µg/L)
Cleaner Lakes Than Island Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Island Lake carries a Grade D (Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Snail Lake (Ramsey County, Grade B, 1.3 mi away) is the closest meaningful upgrade.
2
BWabasso Lake
Ramsey County, Minnesota · 1.2 mi from Island Lake
- +Two grade letters higher (D → B)
- ++9.2 ft water clarity
- +Lower phosphorus (30 vs 62 µg/L)
3
BOwasso Lake
Ramsey County, Minnesota · 1.3 mi from Island Lake
- +Two grade letters higher (D → B)
- ++3.7 ft water clarity
- +Lower phosphorus (26 vs 62 µg/L)
4
CJosephine Lake
Ramsey County, Minnesota · 1.7 mi from Island Lake
- +Higher grade (D → C)
- ++4.4 ft water clarity
- +Lower phosphorus (41 vs 62 µg/L)
5
CJohanna Lake
Ramsey County, Minnesota · 1.9 mi from Island Lake
- +Higher grade (D → C)
- ++3.4 ft water clarity
- +Lower phosphorus (38 vs 62 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.