Harpt Lake

Manitowoc County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)32
Maximum Depth (ft)54
Mean Depth (ft)20
Shoreline (miles)—
Bottom Composition5% sand, 20% gravel, 5% rock, 70% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinSEEPAGE
Lake Classlake
Public Access—
Township—
GPS Coordinates44.29590° N, 87.73400° W
WBIC (DNR ID)84600

Fish Species

4 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
PanfishAbundant—
Largemouth BassCommon—
Northern PikePresent—
WalleyePresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Harpt Lake Boat RampRAMP—1-5NoNo

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.