Thompson Lake

Pepin County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)60
Maximum Depth (ft)23
Mean Depth (ft)
Shoreline (miles)
Bottom Composition26% sand, 1% gravel, 2% rock, 71% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinSPRING
Lake Classlake
Public Access
Township
GPS Coordinates44.63370° N, 91.98680° W
WBIC (DNR ID)2055200

Fish Species

3 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassCommon
Northern PikePresent
PanfishPresent

Boat Landings

1 landing

NameTypeRampTrailersFee
Thompson Lake AccessRAMP1-5NoNo

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
Eurasian Water-MilfoilConfirmed

Data sourced from Wisconsin DNR lake surveys. Last scraped: 4/30/2026.