Johns Lake

Waushara County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)71
Maximum Depth (ft)41
Mean Depth (ft)22
Shoreline (miles)—
Bottom Composition50% sand, 0% gravel, 0% rock, 50% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinSEEPAGE
Lake Classlake
Public Access—
Township—
GPS Coordinates44.08030° N, 89.21080° W
WBIC (DNR ID)245800

Fish Species

3 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
PanfishCommon—
Northern PikePresent—
TroutPresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Johns 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
Banded Mystery SnailConfirmed—
Eurasian Water-MilfoilConfirmed—
Hybrid Eurasian / Northern Water-MilfoilConfirmed—
Zebra MusselConfirmed—

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

Johns Lake — Facts & Figures | Stay Northern