Moldenhauer Lake
Ozaukee County, Wisconsin
About Moldenhauer Lake
Moldenhauer Lake is a prized trout lake in the Ozaukee County Northwoods — cold, clear, and ideal for fly fishing, a intimate 3-acre lake reaching 32 feet at its deepest. Access is limited, which keeps boat traffic low — a plus for solitude seekers. Anglers target Largemouth Bass and Panfish.
Bottom composition: 0% sand, 0% gravel, 0% rock, 99% muck
Type: lake · Hydrology: SEEPAGE
Lake Location
43.33860° N, 87.98430° W
WBIC 10600 · Wisconsin DNRFish Species
Full table →Fishing Tips
- ·Trout hold in the deepest, coolest water during summer. Early morning stillwater fishing or bottom rigs near spring seeps is productive.
- ·Largemouth bass relate to shallow structure. Work topwater lures at dawn in summer, then switch to soft plastics rigged weedless around lily pads and fallen wood.
- ·Bluegill and crappie stack up in 8–15 ft of water near weedlines. Small jigs tipped with a waxworm are hard to beat.
- ·Panfish are often excellent for kids and beginners — look for them around any dock or submerged brush piles.
Local's Guide
Fishing
Species-specific tips above. Wisconsin fishing license required for ages 16+. See current season regulations below.
View fishing regulations ↓Swimming
Moldenhauer Lake has limited visibility and a gravel and sand bottom, making it better suited for boating and fishing than swimming. The 3-acre lake offers a quieter, more intimate swimming experience.
Nearby Dining
Local dining recommendations for Moldenhauer Lake are coming soon. Know a great spot near Moldenhauer Lake? Share it at staynorthern.com/contact. Looking for restaurants near Ozaukee County lakes? Visit staynorthern.com/eats for our full northwoods dining guide.
Insider Tips
Moldenhauer Lake is one of Ozaukee 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 Moldenhauer 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
What fish can you catch in Moldenhauer Lake?
Moldenhauer Lake is home to Largemouth Bass (Common), Panfish (Abundant), and Trout. Wisconsin fishing regulations apply — check current seasons and size limits before heading out.
Can you boat on Moldenhauer Lake?
Moldenhauer 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 Moldenhauer Lake?
Moldenhauer Lake has 3 acres in surface area, a maximum depth of 32 feet.
What is the bottom of Moldenhauer Lake like?
The lake bottom is composed of 0% sand, 0% gravel, 0% rock, 99% muck. Sandy and gravel bottoms typically support good swimming and healthy fish habitat.
Are there invasive species in Moldenhauer Lake?
No invasive species are currently documented in Moldenhauer Lake by the Wisconsin DNR. Always clean, drain, and dry your boat before leaving to help protect this lake.
Where is Moldenhauer Lake located?
Moldenhauer Lake is located in Ozaukee County, Wisconsin. GPS coordinates: 43.3386° N, 87.9843° W.
Are there vacation rentals on Moldenhauer Lake?
Stay Northern is building the most complete rental directory for Ozaukee County lakes. Check our Moldenhauer Lake vacation rentals listing — if none are available yet, check back soon or browse nearby Ozaukee County lake rentals.
Fishing Regulations
Current season regulations for Moldenhauer 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
- 10600
- County
- Ozaukee County
- Surface Area
- 3 acres
- Max Depth
- 32 ft
- Bottom
- 0% sand, 0% gravel, 0% rock, 99% muck
- Lake Type
- lake
- Coordinates
- 43.3386, -87.9843
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Moldenhauer Lake? Let us know.
Lake data sourced from the Wisconsin DNR. Last updated 4/29/2026.