Long Lake

Sheboygan, Fond du Lac County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)423
Maximum Depth (ft)47
Mean Depth (ft)22
Shoreline (miles)—
Bottom Composition1% sand, 4% gravel, 0% rock, 95% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinDRAINAGE
Lake Classlake
Public Access—
Township—
GPS Coordinates43.67400° N, 88.17050° W
WBIC (DNR ID)38700

Fish Species

4 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
PanfishAbundant—
Largemouth BassCommon—
Northern PikeCommon—
WalleyeCommon—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Long Lake Boat RampRAMP—Gr25YesNo

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—
Hybrid Eurasian / Northern Water-MilfoilConfirmed—
Purple LoosestrifeConfirmed—
Zebra MusselConfirmed—

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