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LakeQuality

Cleanest Lakes in Jefferson County, Wisconsin

Rock Lake in Jefferson County leads the rankings with a water quality grade of A and 39.4 ft of clarity. Below are the top 7 cleanest monitored lakes in Jefferson County, Wisconsin, ranked by EPA water quality score.

Ranked List

#LakeCountyGradeClarityPhosphorusAlgae
1Rock LakeJeffersonA39.4 ft17.9 µg/L-
2Lake RipleyJeffersonA27.9 ft22.3 µg/L-
3Blue Spring LakeJeffersonA19.7 ft23.8 µg/L-
4Lower Spring LakeJeffersonB16.4 ft46.9 µg/L-
5Red Cedar LakeJeffersonB13.1 ft23.7 µg/L-
6Mud LakeJeffersonC7.4 ft63.1 µg/L-
7Lake KoshkonongJeffersonD5.7 ft287 µg/L-

More Answers for Jefferson County, Wisconsin