Dunn County Lake Quality
Wisconsin, 3 lakes, average grade C (Fair)
Dunn County has 3 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. Dunn County averages to a C. The distribution behind that average matters more than the letter: a few stressed lakes versus many decent ones can produce the same average as the inverse.
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 Lake Menomin (C); the most-stressed is Tainter Lake (C).
Quick Answers for Dunn County
Planning a trip? Check special fishing regulations for Lake Menomin, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
DNR Reports (10)
Wisconsin DNR Fisheries Survey resources for lakes in Dunn County. browse all reports →
- 2024Lake Menomin spring survey, 2024Fisheries Survey · WI DNR · 2024 (PDF)
- 2024Red Cedar River spring survey, 2024Fisheries Survey · WI DNR · 2024 (PDF)
- 2023Lake Eau Galle spring survey, 2023Fisheries Survey · WI DNR · 2023 (PDF)
- 2022Tainter Lake spring survey, 2022Fisheries Survey · WI DNR · 2022 (PDF)
- 2021Hay Creek rotation survey 2021Fisheries Survey · WI DNR · 2021 (PDF)
- 2021Little Beaver Creek rotation survey 2021Fisheries Survey · WI DNR · 2021 (PDF)
- 2021Vance Creek rotation survey 2021Fisheries Survey · WI DNR · 2021 (PDF)
- 2015Hay Creek Classification Survey 2015Fisheries Survey · WI DNR · 2015 (PDF)
- 2015Knights Creek Classification Survey 2015Fisheries Survey · WI DNR · 2015 (PDF)
- 2015Washburn Farm Creek Classification Survey 2015Fisheries Survey · WI DNR · 2015 (PDF)
All Lakes in Dunn County
| Rank | Lake | Grade | Clarity | Max Depth | Phosphorus |
|---|---|---|---|---|---|
| 1 | Lake Menomin | C | 10.7 ft | 34 ft | 89.7 µg/L |
| 2 | Tainter Lake | C | 12.3 ft | 37 ft | 124 µg/L |
| 3 | Lake Eau Galle | C | 8.2 ft | - | 68.6 µg/L |
Source: EPA National Aquatic Resource Surveys, 2026.