Kewaunee County Lake Quality
Wisconsin, 7 lakes, measured by Wisconsin DNR
Kewaunee County has 7 monitored 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. 3 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. The county-wide picture is low-to-moderate phosphorus with clear summer transparency across most monitored lakes.
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 has the lowest nutrient and algae readings 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
7 lakes · 3 ranked on readings, 4 without enough sampling3 lakes ranked on readings · 4 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|
| 1 | East Alaska LakeKewaunee | 9.5 ft | 16.1 µg/L | No recent samples | No recent samples | 50 ft | ✓ Public |
| 2 | Krohns LakeKewaunee | 8 ft | 11.6 µg/L | No recent samples | No recent samples | 38 ft | ✓ Public |
| 3 | West Alaska LakeKewaunee | 8.5 ft | 14.1 µg/L | No recent samples | No recent samples | 41 ft | ✓ Public |
| Sheas LakeKewaunee | 5.4 ft | No recent samples | No recent samples | No recent samples | 24 ft | ✓ Public | |
| Heidmann LakeKewaunee | 15 ft | No recent samples | No recent samples | No recent samples | 34 ft | ✓ Public | |
| East Alaska LakeKewaunee | No recent samples | No recent samples | No recent samples | No recent samples | 50 ft | ✓ Public | |
| Engledinger LakeKewaunee | No recent samples | No recent samples | No recent samples | No recent samples | 20 ft | Not recorded |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Other Counties in Wisconsin
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Source: the Wisconsin Department of Natural Resources. See data sources.