Lake Keesus

Waukesha County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)235
Maximum Depth (ft)42
Mean Depth (ft)—
Shoreline (miles)—
Bottom Composition30% sand, 20% gravel, 0% rock, 50% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinSPRING
Lake Classlake
Public Access—
Township—
GPS Coordinates43.16590° N, 88.31640° W
WBIC (DNR ID)852400

Fish Species

4 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassAbundant—
PanfishCommon—
Northern PikePresent—
WalleyePresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Lake Keesus AccessRAMP—6-10YesYes

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—
Hybrid Eurasian / Northern Water-MilfoilConfirmed—
Zebra MusselConfirmed—

Data sourced from Wisconsin DNR lake surveys. Last scraped: 4/30/2026.

Lake Keesus — Facts & Figures | Stay Northern