Lake Poygan

Waushara, Winnebago County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)14,024
Maximum Depth (ft)11
Mean Depth (ft)—
Shoreline (miles)—
Bottom Composition30% sand, 10% gravel, 0% rock, 60% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinDRAINAGE
Lake Classlake
Public Access—
Township—
GPS Coordinates44.14620° N, 88.83920° W
WBIC (DNR ID)242800

Fish Species

8 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
CatfishAbundant—
PanfishAbundant—
SturgeonAbundant—
Largemouth BassCommon—
Northern PikeCommon—
WalleyeCommon—
MuskyPresent—
Smallmouth BassPresent—

Boat Landings

6 landings

NameTypeRampTrailersFee♿
Boom Bay Boat LandingRAMP—Gr25YesNo
Lake Poygan Boat LandingRAMP—16-20NoYes
Badger Drive Boat RampRAMP—6-10NoYes
Franklin Street Canoe LaunchCARRY-IN—0NoNo
Tustin Boat LaunchRAMP—1-5NoNo
Center Street Canoe LaunchCARRY-IN—0NoNo

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
Chinese Mystery SnailConfirmed—
Curly-Leaf PondweedConfirmed—
Eurasian Water-MilfoilConfirmed—
Faucet SnailConfirmed—
Flowering RushConfirmed—
Rusty CrayfishConfirmed—
Zebra MusselConfirmed—

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