La Crosse County Lake Quality
Wisconsin, 1 lake — no lake here has enough monitoring data for a grade
Only 1 lakes in La Crosse 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.
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. Neshonoc Lake (—) is the cleanest in the county.
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Quick Answers for La Crosse County
Planning a trip? Check special fishing regulations for Neshonoc Lake — or browse the full Wisconsin regulations index.
DNR Reports (26)
Wisconsin DNR Fisheries Survey resources for lakes in La Crosse County. browse all reports →
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2024Lake Neshonoc netting survey, 2024Netting Survey · WI DNR · 2024 (PDF)
- 2020Mississippi River, Lake Onalaska gamefish assessment, 2020Fisheries Survey · WI DNR · 2020 (PDF)
- 2019Experimental Spring Walleye Juvenile and Adult Assessment, Pool 8, 2018 and 2019Walleye Survey · WI DNR · 2019 (PDF)
- 2019Mississippi River Pool 8 Fall walleye and sauger young of year assessment, 2019Walleye Survey · WI DNR · 2019 (PDF)
- 2019Mississippi River Pool 8 Richmond Bay isolated pond, 2019Fisheries Survey · WI DNR · 2019 (PDF)
- 2019Mississippi River Pool 8/9 smallmouth bass assessment, 2019Fisheries Survey · WI DNR · 2019 (PDF)
- 2018Fisheries assessment in Richmond Bay (isolated pond), Pool 8, 2018Fisheries Survey · WI DNR · 2018 (PDF)
- 2018Fisheries assessment in the Black River channel, Pool 7, 2018Fisheries Survey · WI DNR · 2018 (PDF)
- 2018Fisheries assessment in the Black River mouth, Pool 7, 2018Fisheries Survey · WI DNR · 2018 (PDF)
- 2018Mississippi River Pool 8 Fall Walleye and Sauger Young-of-the-Year Assessment, 2018Walleye Survey · WI DNR · 2018 (PDF)
- 2018Walleye and sauger assessments in Pool 8, 2018Walleye Survey · WI DNR · 2018 (PDF)
- 2017Mississippi River Pool 8 Fall Walleye and Sauger Young-of-the-Year Assessment, 2017Walleye Survey · WI DNR · 2017 (PDF)
- 2017Mississippi River Pool 9 Lawrence/Target Lake, 2017Fisheries Survey · WI DNR · 2017 (PDF)
- 2017Walleye and sauger assessments in Pool 8, 2017Walleye Survey · WI DNR · 2017 (PDF)
- 2016Mississippi River Pool 8 Fall Walleye and Sauger Young-of-the-Year Assessment, 2016Walleye Survey · WI DNR · 2016 (PDF)
- 2016Walleye and sauger assessments in Pool 8, 2016Walleye Survey · WI DNR · 2016 (PDF)
- 2015An Evaluation of Fishery Trends at the Lake Onalaska Habitat Project, 2015Fisheries Survey · WI DNR · 2015 (PDF)
- 2015An Evaluation of Fishery Trends at the Stoddard Bay Habitat Project, 2015Fisheries Survey · WI DNR · 2015 (PDF)
- 2015Mississippi River Pool 8 Fall Walleye and Sauger Young-of-the-Year Assessment, 2015Walleye Survey · WI DNR · 2015 (PDF)
- 2014Black River channel lake unit assessment, Pool 8 Mississippi River, Fall 2014Fisheries Survey · WI DNR · 2014 (PDF)
- 2014Lake assessment in the Black River Mouth Lake Unit, Pool 7 Mississippi River, Fall 2014Fisheries Survey · WI DNR · 2014 (PDF)
- 2014Mississippi River Pool 8 fall walleye and sauger young-of-year assessment, Fall 2014Walleye Survey · WI DNR · 2014 (PDF)
- 2013Lake assessment in the Lawrence/Target Lake Unit, Mississippi River, Pool 8, 2013Fisheries Survey · WI DNR · 2013 (PDF)
- 2013Lake assessment in the Trempealeau Lakes Lake Unit, Mississippi River, Pool 7, 2013Fisheries Survey · WI DNR · 2013 (PDF)
- —Mississippi River channel catfish sampling, Pools 8 and 9, 2007-2013Fisheries Survey · WI DNR (PDF)
- —Mississippi River Pool 8 Experimental Spring Walleye Juvenile and Adult Assessment 2018-2019Walleye Survey · WI DNR (PDF)
All Lakes in La Crosse County
1 lake · 0 graded, 1 not rated0 graded lakes · 1 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| NRNeshonoc LakeLa Crosse | NR | 0.4 ft | No recent samples | No recent samples | No recent samples | ✓ 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.
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Other Counties in Wisconsin
See how La Crosse 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.