Devils Lake

Sauk County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)374
Maximum Depth (ft)47
Mean Depth (ft)30
Shoreline (miles)
Bottom Composition50% sand, 30% gravel, 0% rock, 20% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinSEEPAGE
Lake Classlake
Public Access
Township
GPS Coordinates43.41740° N, 89.73160° W
WBIC (DNR ID)980900

Fish Species

6 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
PanfishAbundant
Largemouth BassCommon
Northern PikeCommon
Smallmouth BassPresent
TroutPresent
WalleyePresent

Boat Landings

2 landings

NameTypeRampTrailersFee
Boat Landing 1Public
Boat Landing 2Public

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
Phragmites (non-native)Confirmed

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

Devils Lake — Facts & Figures | Stay Northern