1
AEast Twin Lake
Crow Wing County, Minnesota · 1.3 mi from Mayo Lake
- +Two grade letters higher (C → A)
- ++10.2 ft water clarity
- +Lower phosphorus (8 vs 29.5 µg/L)
Cleaner Lakes Than Mayo Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Mayo Lake carries a Grade C (Fair) water quality score. Within 30 miles, 5 lakes hold a higher grade. East Twin Lake (Crow Wing County, Grade A, 1.3 mi away) is the closest meaningful upgrade.
2
AEdna Lake
Crow Wing County, Minnesota · 2.1 mi from Mayo Lake
- +Two grade letters higher (C → A)
- ++13.2 ft water clarity
- +Lower phosphorus (9 vs 29.5 µg/L)
3
ALower Cullen Lake
Crow Wing County, Minnesota · 2.4 mi from Mayo Lake
- +Two grade letters higher (C → A)
- ++12.6 ft water clarity
- +Lower phosphorus (14.5 vs 29.5 µg/L)
4
AWest Twin Lake
Crow Wing County, Minnesota · 1.2 mi from Mayo Lake
- +Two grade letters higher (C → A)
- ++8.5 ft water clarity
- +Lower phosphorus (9 vs 29.5 µg/L)
5
ALoon Lake
Cass County, Minnesota · 1.8 mi from Mayo Lake
- +Two grade letters higher (C → A)
- ++7.3 ft water clarity
- +Lower phosphorus (13 vs 29.5 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.