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 LandingRAMP—Gr25YesNo
Doemel Point AccessCARRY-IN—1-5NoNo
Brothertown HarborRAMP—16-20YesNo
Ecker Lakeland Road AccessRAMP—1-5NoNo
Mill Street Boat RampRAMP—1-5YesYes
Lakeside Park - West Boat RampRAMP—Gr50YesYes
Grundman Park Boat LandingRAMP—Gr25YesNo
Hwy 45 Wayside Park Boat RampRAMP—Greater than 25YesNo
Columbia Park Boat LaunchRAMP—Gr50YesYes
Fisherman's Park Boat RampRAMP—21-50NoYes
Fugleburg Park Boat RampRAMP—Gr25YesYes
Menominee Park Boat RampRAMP—Gr25YesNo
Asylum Point Park & Boat LandingRAMP—21-25YesNo
High Cliff State Park MarinaRAMP—Gr25YesNo
Lake Winnebago AccessCARRY-IN—0NoNo
Calumet County Park AccessRAMP—Gr25YesNo
Recreation Park Boat RampRAMP—Gr25YesNo
24th Avenue Boat LaunchRAMP—21-25YesYes

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.