1
APipe Lake
Polk County, Wisconsin · 1.1 mi from North Pipe Lake
- +Two grade letters higher (C → A)
- ++31.5 ft water clarity
- +Lower phosphorus (14.5 vs 29.3 µg/L)
Cleaner Lakes Than North Pipe Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
North Pipe Lake carries a Grade C (Fair) water quality score. Within 30 miles, 5 lakes hold a higher grade. Pipe Lake (Polk County, Grade A, 1.1 mi away) is the closest meaningful upgrade.
2
ALong Lake
Polk County, Wisconsin · 3.1 mi from North Pipe Lake
- +Two grade letters higher (C → A)
- ++10.2 ft water clarity
3
AEmber Lake
Polk County, Wisconsin · 3.5 mi from North Pipe Lake
- +Two grade letters higher (C → A)
- ++20.9 ft water clarity
- +Lower phosphorus (20.2 vs 29.3 µg/L)
4
ANorth Lake
Barron County, Wisconsin · 4.6 mi from North Pipe Lake
- +Two grade letters higher (C → A)
- ++11.8 ft water clarity
- +Lower phosphorus (22.7 vs 29.3 µg/L)
5
BMud Lake
Polk County, Wisconsin · 0.9 mi from North Pipe Lake
- +Higher grade (C → B)
- ++7.7 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.