Jefferson County Wisconsin Fishing
7 documented fish species across 7 Jefferson County lakes.
Panfish
Catfish & Bullhead
Other Species
Jefferson County Fishing Lakes
| Lake | Grade | Clarity | Max Depth | Species |
|---|---|---|---|---|
| Rock Lake | B | 12 ft | 60 ft | 5 |
| Red Cedar Lake | B | 4 ft | 6 ft | 1 |
| Lake Ripley | B | 9 ft | 44 ft | 4 |
| Blue Spring Lake | B | 6.2 ft | 27 ft | 3 |
| Mud Lake | D | 2.3 ft | 22 ft | 2 |
| Lake Koshkonong | D | 1.7 ft | 7 ft | 7 |
| Hope Lake | NR | 8 ft | 24 ft | 3 |
Jefferson County water quality
DNR Survey Reports
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2025Lower Spring Lake spring shocking survey, 2025Spring Shocking Survey · WI DNR · 2025 (PDF)
- 2023Lake Ripley comprehensive survey, 2023Comprehensive Survey · WI DNR · 2023 (PDF)
- 2023Lower Spring Lake Spring summary report, 2023Fisheries Survey · WI DNR · 2023 (PDF)
- 2022Rock Lake comprehensive survey, 2022Comprehensive Survey · WI DNR · 2022 (PDF)
Where to stay in Jefferson County
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Frequently Asked Questions
What fish are in Jefferson County lakes?
Jefferson County, Wisconsin has 7 documented fish species across 7 lakes, including Panfish, Northern Pike, Largemouth Bass, Walleye, Smallmouth Bass.
What is the best-graded fishing lake in Jefferson County?
Rock Lake holds the highest water-quality grade (B) among Jefferson County lakes with a documented fishery.