North Nokomis Lake

North Nokomis Lake sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in Wisconsin. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI value of 30 puts North Nokomis Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. The lake's 73 ft maximum depth is in the upper tier for Wisconsin — deep enough for cold-water fish to find refuge in summer. North Nokomis Lake covers 470 acres alongside partial shoreline records — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. North Nokomis Lake sits at rank 81 of 140 in Oneida County, in the lower half of the local distribution.

North Nokomis Lake has at least one documented invasive species (Banded Mystery Snail), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. Walleye are documented at North Nokomis Lake, one of 5 fish species on record for the lake. Public access is available — the lake is on the Wisconsin DNR public-access list. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.