Long Lake

Sauk County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)5
Maximum Depth (ft)10
Mean Depth (ft)
Shoreline (miles)
Bottom Composition90% sand, 10% gravel, 0% rock, 0% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinSPRING
Lake Classlake
Public Access
Township
GPS Coordinates43.20100° N, 89.86990° W
WBIC (DNR ID)1252500

Fish Species

5 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassCommon
PanfishCommon
CatfishPresent
Northern PikePresent
WalleyePresent

Boat Landings

No boat landing data available.

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
Eurasian Water-MilfoilConfirmed

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