Lake Winnebago

Fond du Lac, Calumet, Winnebago County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)131,939
Maximum Depth (ft)21
Mean Depth (ft)
Shoreline (miles)
Bottom Composition
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinDRAINAGE
Lake Classlake
Public Access
Township
GPS Coordinates44.01680° N, 88.40960° W
WBIC (DNR ID)131100

Fish Species

8 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
CatfishAbundant
PanfishAbundant
SturgeonAbundant
WalleyeAbundant
Largemouth BassCommon
Smallmouth BassCommon
MuskyPresent
Northern PikePresent

Boat Landings

18 landings

NameTypeRampTrailersFee
Nagy Park/Black Wolf Boat LandingRAMPGr25YesNo
Doemel Point AccessCARRY-IN1-5NoNo
Brothertown HarborRAMP16-20YesNo
Ecker Lakeland Road AccessRAMP1-5NoNo
Mill Street Boat RampRAMP1-5YesYes
Lakeside Park - West Boat RampRAMPGr50YesYes
Grundman Park Boat LandingRAMPGr25YesNo
Hwy 45 Wayside Park Boat RampRAMPGreater than 25YesNo
Columbia Park Boat LaunchRAMPGr50YesYes
Fisherman's Park Boat RampRAMP21-50NoYes
Fugleburg Park Boat RampRAMPGr25YesYes
Menominee Park Boat RampRAMPGr25YesNo
Asylum Point Park & Boat LandingRAMP21-25YesNo
High Cliff State Park MarinaRAMPGr25YesNo
Lake Winnebago AccessCARRY-IN0NoNo
Calumet County Park AccessRAMPGr25YesNo
Recreation Park Boat RampRAMPGr25YesNo
24th Avenue Boat LaunchRAMP21-25YesYes

Invasive Species

Invasive species have been documented in or near this lake. Please clean, drain, and dry all watercraft and equipment before leaving to prevent spread.

SpeciesStatusFirst Detected
Asiatic Clam (Corbicula)Confirmed
Chinese Mystery SnailConfirmed
Curly-Leaf PondweedConfirmed
Eurasian Water-MilfoilConfirmed
Faucet SnailConfirmed
Flowering RushConfirmed
Hybrid Eurasian / Northern Water-MilfoilConfirmed
Phragmites (non-native)Confirmed
Purple LoosestrifeConfirmed
Rusty CrayfishConfirmed
Spiny WaterfleaConfirmed
Zebra MusselConfirmed

Data sourced from Wisconsin DNR lake surveys. Last scraped: 4/29/2026.

Lake Winnebago — Facts & Figures | Stay Northern