About Mud Lake
Mud Lake is a scenic Jefferson County lake worth knowing about, covering 185 acres. Access is limited, which keeps boat traffic low — a plus for solitude seekers.
Type: lake · Hydrology: DRAINAGE
Lake Location
42.90430° N, 88.90070° W
WBIC 778500 · Wisconsin DNRLocal's Guide
Fishing
Species-specific tips above. Wisconsin fishing license required for ages 16+. See current season regulations below.
View fishing regulations ↓Swimming
Mud Lake has limited visibility and a mixed bottom, making it generally good for swimming with gradual entry in most areas. The 185-acre lake offers a quieter, more intimate swimming experience.
Nearby Dining
Local dining recommendations for Mud Lake are coming soon. Know a great spot near Mud Lake? Share it at staynorthern.com/contact. Looking for restaurants near Jefferson County lakes? Visit staynorthern.com/eats for our full northwoods dining guide.
Insider Tips
Mud Lake is one of Jefferson County's lesser-known gems — the kind of place locals return to year after year. Early mornings before 9am offer the calmest water and best fishing before boat traffic picks up. If you're visiting for the first time, check the DNR boat landing locations before you arrive — some are well-marked, others take a local to find. Know something about Mud Lake that visitors should? Share a tip at staynorthern.com/contact — we add the best ones to this page.
Lake Conditions
Water Clarity
—
No data
Trophic Status
—
No data
Invasive Weeds
Not documented
Clean lake
Seasonal Notes
See below
Ice-out dates, peak fishing windows
Ice out arrives in late March to early April on southern Wisconsin lakes. Bass and panfish fishing is excellent from early May onward. Swimming season runs from early June through September. Fall color peaks in mid-October. Ice fishing is possible in most winters but season length varies — check conditions before heading out.
Condition data sourced from Wisconsin DNR surveys. Real-time weed and clarity reports coming soon.
Frequently Asked Questions
Can you boat on Mud Lake?
Mud Lake does not currently have a public boat landing listed in the Wisconsin DNR database. Shore fishing or kayak/canoe access may still be available — check local access points.
How big is Mud Lake?
Mud Lake has 185 acres in surface area.
Are there invasive species in Mud Lake?
No invasive species are currently documented in Mud Lake by the Wisconsin DNR. Always clean, drain, and dry your boat before leaving to help protect this lake.
Where is Mud Lake located?
Mud Lake is located in Jefferson County, Wisconsin. GPS coordinates: 42.9043° N, 88.9007° W.
Are there vacation rentals on Mud Lake?
Stay Northern is building the most complete rental directory for Jefferson County lakes. Check our Mud Lake vacation rentals listing — if none are available yet, check back soon or browse nearby Jefferson County lake rentals.
Fishing Regulations
Current season regulations for Mud Lake
| Species | Season | Min. Length | Daily Bag |
|---|---|---|---|
| Bullheads | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Catfish | Open All Year | No minimum length limit and the daily bag limit is 10. | — |
| Cisco And Whitefish | Open All Year | No minimum length limit and the daily bag limit is 10. | — |
| Lake Sturgeon | Closed | No fishing allowed. | — |
| Largemouth Bass And Smallmouth Bass | May 2, 2026 to March 7, 2027 | The minimum length limit is 14" and the daily bag limit is 5. | — |
| Muskellunge And Hybrids | May 2, 2026 to December 31, 2026 on open water | The minimum length limit is 40" and the daily bag limit is 1. | — |
| Northern Pike | May 2, 2026 to March 7, 2027 | The minimum length limit is 26" and the daily bag limit is 2. | — |
| Paddlefish | Closed | No fishing allowed. | — |
| Panfish | Open All Year | No minimum length limit and the daily bag limit is 25. | — |
| Rock, Yellow, And White Bass | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Rough Fish | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Round Goby | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
| Ruffe | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
| Shovelnose Sturgeon | Closed | No fishing allowed. | — |
| Trout | See specific regulations | https://dnr.wisconsin.gov/topic/fishing/trout/ . | — |
| Walleye, Sauger, And Hybrids | May 2, 2026 to March 7, 2027 | The minimum length limit is 15" and the daily bag limit is 3. | — |
| White Perch | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
Regulations sourced from Wisconsin DNR fisheries data. Always verify current regulations before fishing.
Lake Details
- WBIC
- 778500
- County
- Jefferson County
- Surface Area
- 185 acres
- Lake Type
- lake
- Coordinates
- 42.9043, -88.9007
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Mud Lake? Let us know.
Lake data sourced from the Wisconsin DNR. Last updated 4/30/2026.