1
AStone Lake
Washburn County, Wisconsin · 5.6 mi from Potato Lake
- +Higher grade (B → A)
- ++43.1 ft water clarity
- +Lower phosphorus (10.8 vs 33.2 µg/L)
Cleaner Lakes Than Potato Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Potato Lake carries a Grade B (Good) water quality score. Within 30 miles, 5 lakes hold a higher grade. Stone Lake (Washburn County, Grade A, 5.6 mi away) is the closest meaningful upgrade.
2
ADeep Lake
Washburn County, Wisconsin · 6 mi from Potato Lake
- +Higher grade (B → A)
- +Lower phosphorus (16.5 vs 33.2 µg/L)
3
ASlim Lake
Washburn County, Wisconsin · 6.2 mi from Potato Lake
- +Higher grade (B → A)
- ++7 ft water clarity
- +Lower phosphorus (13.6 vs 33.2 µg/L)
4
ALong Lake
Washburn County, Wisconsin · 6.9 mi from Potato Lake
- +Higher grade (B → A)
- +Lower phosphorus (17.5 vs 33.2 µg/L)
5
ASissabagama Lake
Sawyer County, Wisconsin · 8.2 mi from Potato Lake
- +Higher grade (B → A)
- +Lower phosphorus (18.7 vs 33.2 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.