Delton Lake

Sauk County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)249
Maximum Depth (ft)16
Mean Depth (ft)8
Shoreline (miles)
Bottom Composition50% sand, 0% gravel, 0% rock, 50% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinDRAINAGE
Lake Classflowage
Public Access
Township
GPS Coordinates43.60010° N, 89.77880° W
WBIC (DNR ID)1295400

Fish Species

5 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassCommon
WalleyeCommon
CatfishPresent
Northern PikePresent
PanfishPresent

Boat Landings

1 landing

NameTypeRampTrailersFee
Public Boat LandingPublic

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
Curly-Leaf PondweedConfirmed

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

Delton Lake — Facts & Figures | Stay Northern