Dunn County Lake Quality
Wisconsin, 3 lakes, average grade D (Poor)
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. On average, Dunn County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
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 Tainter Lake (D); the most-stressed is Tainter Lake (D).
Quick Answers for Dunn County
Planning a trip? Check special fishing regulations for Tainter Lake, 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 | Tainter Lake | D | 3.7 ft | 37 ft | 124 µg/L |
| 2 | Lake Menomin | D | 3.2 ft | 34 ft | 89.7 µg/L |
| 3 | Lake Eau Galle | D | 3 ft | - | 68.6 µg/L |
Source: EPA National Aquatic Resource Surveys, 2026.