St Croix Flowage

Douglas County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)2,247
Maximum Depth (ft)28
Mean Depth (ft)7
Shoreline (miles)
Bottom Composition48% sand, 0% gravel, 30% rock, 22% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinDRAINAGE
Lake Classflowage
Public Access
Township
GPS Coordinates46.25610° N, 91.87130° W
WBIC (DNR ID)2740300

Fish Species

4 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassCommon
Northern PikeCommon
PanfishCommon
MuskyPresent

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
Purple LoosestrifeConfirmed

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

St Croix Flowage — Facts & Figures | Stay Northern