Lake Monona

Dane County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)3,359
Maximum Depth (ft)74
Mean Depth (ft)27
Shoreline (miles)
Bottom Composition30% sand, 25% gravel, 5% rock, 40% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinDRAINAGE
Lake Classlake
Public Access
Township
GPS Coordinates43.06830° N, 89.35810° W
WBIC (DNR ID)804600

Fish Species

8 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
PanfishAbundant
Largemouth BassCommon
Northern PikeCommon
WalleyeCommon
CatfishPresent
MuskyPresent
Smallmouth BassPresent
SturgeonPresent

Boat Landings

5 landings

NameTypeRampTrailersFee
Boat Landing 1Public
Boat Landing 2Public
Boat Landing 3Public
Boat Landing 4Public
Boat Landing 5Public

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
Banded Mystery SnailConfirmed
Chinese Mystery SnailConfirmed
Curly-Leaf PondweedConfirmed
Eurasian Water-MilfoilConfirmed
Spiny WaterfleaConfirmed
Zebra MusselConfirmed

Data sourced from Wisconsin DNR lake surveys. Last scraped: 3/24/2026.

Lake Monona — Facts & Figures | Stay Northern