Vernon County Lake Quality
Wisconsin, 3 lakes, measured by Wisconsin DNR
Vernon County has 3 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. The 3 monitored lakes in Vernon County carry whatever clarity, phosphorus, and chlorophyll-a readings Wisconsin DNR has published, shown as reported.
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.
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Quick Answers for Vernon County
Planning a trip? Check special fishing regulations for Sidie Hollow Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
DNR Reports (2)
Wisconsin DNR Fisheries Survey resources for lakes in Vernon County. browse all reports →
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2025Lower Reno Bottoms Mississippi River fall survey, 2025Fisheries Survey · WI DNR · 2025 (PDF)
- 2024Sidie Hollow Lake fishery survey, 2024Fisheries Survey · WI DNR · 2024 (PDF)
All Lakes in Vernon County
3 lakes · 0 ranked on readings, 3 without enough sampling0 lakes ranked on readings · 3 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|
| Sidie Hollow LakeVernon | 12 ft | No recent samples | No recent samples | No recent samples | 22 ft | ✓ Public | |
| Field Veterans Memorial LakeVernon | No recent samples | No recent samples | No recent samples | No recent samples | 12 ft | ✓ Public | |
| Waller LakesVernon | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | 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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Source: the Wisconsin Department of Natural Resources. See data sources.