Marquette County Lake Quality
Wisconsin, 13 lakes, average grade B (Good)
Only 13 lakes in Marquette 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. With an average grade of B, Marquette County sits comfortably above the Wisconsin median.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is White Lake (B); the most-stressed is West Twin Lake (D).
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Quick Answers for Marquette County
Planning a trip? Check special fishing regulations for White Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
Fishing in Marquette County
DNR Reports (7)
Wisconsin DNR Fisheries Survey resources for lakes in Marquette County. browse all reports →
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2024Montello Lake spring shocking survey, 2024Spring Shocking Survey · WI DNR · 2024 (PDF)
- 2023Harrisville Pond spring shocking survey, 2023Spring Shocking Survey · WI DNR · 2023 (PDF)
- 2023Lawrence Pond spring shocking survey, 2023Spring Shocking Survey · WI DNR · 2023 (PDF)
- 2022Neshkoro Millpond comprehensive survey, 2022Comprehensive Survey · WI DNR · 2022 (PDF)
- 2022Twin Lakes spring shocking survey, 2022Spring Shocking Survey · WI DNR · 2022 (PDF)
- 2021School Section Lake spring shocking survey, 2021Spring Shocking Survey · WI DNR · 2021 (PDF)
- 2018Moon Lake spring summary, 2018Fisheries Survey · WI DNR · 2018 (PDF)
All Lakes in Marquette County
13 lakes · 11 graded, 2 not rated11 graded lakes · 2 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|---|
| 1 | BWhite LakeMarquette | B | 17 ft | 10.8 µg/L | No recent samples | No recent samples | 60 ft | Not recorded |
| 2 | BLake SharonMarquette | B | 9 ft | 13 µg/L | No recent samples | No recent samples | 30 ft | ✓ Public |
| 3 | BCrystal LakeMarquette | B | 16.8 ft | 11.5 µg/L | No recent samples | No recent samples | 60 ft | ✓ Public |
| 4 | BWood LakeMarquette | B | 14 ft | 11.5 µg/L | No recent samples | No recent samples | 53 ft | ✓ Public |
| 5 | BEast Twin LakeMarquette | B | 3.3 ft | 18.1 µg/L | No recent samples | No recent samples | 8 ft | ✓ Public |
| 6 | BWilliams LakeMarquette | B | 6 ft | 21.4 µg/L | No recent samples | No recent samples | No recent samples | ✓ Public |
| 7 | BFenner LakeMarquette | B | 12 ft | 16.8 µg/L | No recent samples | No recent samples | 18 ft | ✓ Public |
| 8 | BTuttle LakeMarquette | B | 11.5 ft | 15.8 µg/L | No recent samples | No recent samples | 33 ft | ✓ Public |
| 9 | CLawrence LakeMarquette | C | 6.7 ft | 25.2 µg/L | No recent samples | No recent samples | 14 ft | ✓ Public |
| 10 | DWest Twin LakeMarquette | D | 4.9 ft | 53.2 µg/L | No recent samples | No recent samples | 24 ft | Not recorded |
| 11 | DBuffalo LakeMarquette | D | 2.5 ft | 125.5 µg/L | No recent samples | No recent samples | 8 ft | ✓ Public |
| NRSandy LakeMarquette | NR | 8 ft | No recent samples | No recent samples | No recent samples | 12 ft | Not recorded | |
| NRLake MontelloMarquette | NR | 6.1 ft | No recent samples | No recent samples | No recent samples | 17 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.
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Other Counties in Wisconsin
See how Marquette 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.