St. Croix County Wisconsin Fishing
8 documented fish species across 3 St. Croix County lakes.
Panfish
Catfish & Bullhead
Other Species
St. Croix County Fishing Lakes
| Lake | Clarity | Max Depth | Species |
|---|---|---|---|
| Lake St Croix | 5.6 ft | 60 ft | 7 |
| Apple Lake | 2.5 ft | 32 ft | 4 |
| Lake Mallalieu | 2.8 ft | 17 ft | 4 |
St. Croix County water quality
DNR Survey Reports
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2025Cedar Lake comprehensive spring survey, 2025Comprehensive Survey · WI DNR · 2025 (PDF)
- 2025Hatfield Lake spring shocking survey, 2025Spring Shocking Survey · WI DNR · 2025 (PDF)
- 2025Lake George spring survey, 2025Fisheries Survey · WI DNR · 2025 (PDF)
- 2025Little Falls Lake spring shocking survey, 2025Spring Shocking Survey · WI DNR · 2025 (PDF)
- 2025Twin Lakes northern pike stocking assessment survey, 2025Fisheries Survey · WI DNR · 2025 (PDF)
- 2024Apple Lake spring survey, 2024Fisheries Survey · WI DNR · 2024 (PDF)
- 2021Cedar Lake spring survey, 2021Fisheries Survey · WI DNR · 2021 (PDF)
- —Population assessment of lake sturgeon in the upper St. Croix River, Minnesota and Wisconsin 2003-2011Fisheries Survey · WI DNR (PDF)
- —St. Croix River catfish survey, 2020-2024Fisheries Survey · WI DNR (PDF)
Where to stay in St. Croix County
Top-rated places to stay near St. Croix County, Wisconsin
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Frequently Asked Questions
What fish are in St. Croix County lakes?
St. Croix County, Wisconsin has 8 documented fish species across 3 lakes, including Largemouth Bass, Northern Pike, Smallmouth Bass, Walleye, Panfish.
Which St. Croix County fishing lake has the cleanest water?
Lake St Croix ranks highest on nutrient and algae readings among St. Croix County lakes with a documented fishery.