Pepin County Lake Quality
Wisconsin, 1 lake — no lake here has enough monitoring data for a grade
Only 1 lakes in Pepin County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county.
A meaningful share of Pepin's lakes break 50 feet of depth, which matters because deep lakes hold cooler water all summer and resist the resuspended-sediment problems that plague shallow basins. The county's best-graded lake is Pepin Lake (—).
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Quick Answers for Pepin County
Planning a trip? Check special fishing regulations for Pepin Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
All Lakes in Pepin County
1 lake · 0 graded, 1 not rated0 graded lakes · 1 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|---|
| NRPepin LakePepin | NR | 1.5 ft | No recent samples | No recent samples | No recent samples | 60 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 Pepin 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.