Mirror Lake

Sauk County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)139
Maximum Depth (ft)19
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 Coordinates43.56400° N, 89.83310° W
WBIC (DNR ID)1296000

Fish Species

4 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassCommon—
Northern PikeCommon—
PanfishPresent—
WalleyePresent—

Boat Landings

2 landings

NameTypeRampTrailersFee♿
Mirror Lake State Park Boat LandingRAMP—6-10YesYes
Delton Boat LandingRAMP—6-10NoYes

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: 4/29/2026.

Mirror Lake — Facts & Figures | Stay Northern