Lake Winnebago

Winnebago, Fond du Lac, Calumet 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

20 landings

NameTypeRampTrailersFee
Boat Landing 1Public
Boat Landing 2Public
Boat Landing 3Public
Boat Landing 4Public
Boat Landing 5Public
Boat Landing 6Public
Boat Landing 7Public
Boat Landing 8Public
Boat Landing 9Public
Boat Landing 10Public
Boat Landing 11Public
Boat Landing 12Public
Boat Landing 13Public
Boat Landing 14Public
Boat Landing 15Public
Boat Landing 16Public
Boat Landing 17Public
Boat Landing 18Public
Boat Landing 19Public
Boat Landing 20Public

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: 3/24/2026.