Fox Lake

On the LakeGrade rubric Fox Lake fails the cutoffs — a TSI of 70 and persistent algal pressure put it in the bottom tier. clarity and phosphorus rate similarly, so there is no obvious single lever to pull on watershed management.

Hypereutrophic conditions mean the lake is operating at the upper end of the productivity scale, with all the bloom risk that implies. A maximum depth of 19 ft puts Fox Lake in the middle of Wisconsin's depth distribution. With 2,713 acres of surface and partial shoreline records, Fox Lake is a large water by Wisconsin standards — recreational pressure is spread across a long shoreline. Fox Lake ranks 3 of 3 in Dodge County — at the lower end of the locally monitored distribution.

Fox Lake is on the Wisconsin infested-waters list for zebra mussels — boaters should follow clean-drain-dry protocols when moving gear to or from the lake. The fishery includes walleye among the lake's 5 documented species — a notable draw for Wisconsin anglers. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.