Calumet County Lake Quality
Wisconsin, 2 lakes, average grade D (Nutrient-rich)
Calumet County has 2 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 grade is D — water quality issues are persistent across most of the monitored basins. 0 lakes fall into the F bracket outright.
Many of the county's lakes are deep glacial basins — over 50 feet at their deepest point — which gives them thermal stratification and a buffer against summer warming. Beckers Lake (grade D) is the cleanest in the county.
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Quick Answers for Calumet County
Planning a trip? Check special fishing regulations for Beckers Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
Fishing in Calumet County
DNR Reports (1)
Wisconsin DNR Fisheries Survey resources for lakes in Calumet County. browse all reports →
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2023Stockbridge Harbor (Lake Winnebago) spring shocking survey, 2023Spring Shocking Survey · WI DNR · 2023 (PDF)
All Lakes in Calumet County
2 lakes2 graded lakes
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|---|
| 1 | DBeckers LakeCalumet | D | 1.5 ft | 138 µg/L | No recent samples | No recent samples | 52.5 ft | ✓ Public |
| 2 | DChilton MillpondCalumet | D | 2.9 ft | 287.5 µg/L | No recent samples | No recent samples | 7 ft | ✓ Public |
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 Calumet 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.