Kewaunee County Lake Quality
Wisconsin, 5 lakes, average grade B (Good)
Kewaunee County has 5 graded lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. The county-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. East Alaska Lake (B) is the cleanest in the county.
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Quick Answers for Kewaunee County
Planning a trip? Check special fishing regulations for East Alaska Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
Fishing in Kewaunee County
DNR Reports (7)
Wisconsin DNR Fisheries Survey resources for lakes in Kewaunee County. browse all reports →
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2025Shea Lake spring survey, 2025Fisheries Survey · WI DNR · 2025 (PDF)
- 2024East Alaska Lake spring survey, 2024Fisheries Survey · WI DNR · 2024 (PDF)
- 2021Krohns Lake spring shocking survey, 2021Spring Shocking Survey · WI DNR · 2021 (PDF)
- 2019West Alaska Lake spring survey 2019Fisheries Survey · WI DNR · 2019 (PDF)
- 2017East Alaska Lake spring survey 2017Fisheries Survey · WI DNR · 2017 (PDF)
- 2017Shea Lake spring survey 2017Fisheries Survey · WI DNR · 2017 (PDF)
- 2016Heidman (Bolt) Lake spring survey 2016Fisheries Survey · WI DNR · 2016 (PDF)
All Lakes in Kewaunee County
5 lakes · 3 graded, 2 not rated3 graded lakes · 2 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|---|
| 1 | BEast Alaska LakeKewaunee | B | 9.5 ft | 16.1 µg/L | No recent samples | No recent samples | 50 ft | ✓ Public |
| 2 | BKrohns LakeKewaunee | B | 8 ft | 11.6 µg/L | No recent samples | No recent samples | 38 ft | ✓ Public |
| 3 | BWest Alaska LakeKewaunee | B | 8.5 ft | 14.1 µg/L | No recent samples | No recent samples | 41 ft | ✓ Public |
| NRSheas LakeKewaunee | NR | 5.4 ft | No recent samples | No recent samples | No recent samples | 24 ft | ✓ Public | |
| NRHeidmann LakeKewaunee | NR | 15 ft | No recent samples | No recent samples | No recent samples | 34 ft | ✓ Public |
NR = not rated: the monitoring record does not meet the evidence bar for a grade. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
Lake Match
Which lake suits how you actually use one?
Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of graded lakes that fit, with the water quality behind each one.
Other Counties in Wisconsin
See how Kewaunee County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 39 states and 2 Canadian provinces.
Source: EPA National Aquatic Resource Surveys, 2026.