1
ADeer Lake
Hubbard County, Minnesota · 2.3 mi from Seventh Crow Wing Lake
- +Two grade letters higher (C → A)
- ++6.2 ft water clarity
- +Lower phosphorus (12 vs 25 µg/L)
Cleaner Lakes Than Seventh Crow Wing Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Seventh Crow Wing Lake carries a Grade C (Fair) water quality score. Within 30 miles, 5 lakes hold a higher grade. Deer Lake (Hubbard County, Grade A, 2.3 mi away) is the closest meaningful upgrade.
2
BHam Lake
Hubbard County, Minnesota · 2.7 mi from Seventh Crow Wing Lake
- +Higher grade (C → B)
- ++3.1 ft water clarity
- +Lower phosphorus (15 vs 25 µg/L)
3
BShallow Lake
Hubbard County, Minnesota · 2.8 mi from Seventh Crow Wing Lake
- +Higher grade (C → B)
- ++1.6 ft water clarity
- +Lower phosphorus (11 vs 25 µg/L)
4
BNinth Crow Wing Lake
Hubbard County, Minnesota · 3.3 mi from Seventh Crow Wing Lake
- +Higher grade (C → B)
- ++2.9 ft water clarity
- +Lower phosphorus (15.5 vs 25 µg/L)
5
BSixth Crow Wing Lake
Hubbard County, Minnesota · 2.4 mi from Seventh Crow Wing Lake
- +Higher grade (C → B)
- ++2.3 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.