Tomahawk Lake

Oneida County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)3,462
Maximum Depth (ft)84
Mean Depth (ft)33
Shoreline (miles)
Bottom Composition55% sand, 19% gravel, 21% rock, 5% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinDRAINAGE
Lake Classlake
Public Access
Township
GPS Coordinates45.83070° N, 89.64750° W
WBIC (DNR ID)1542700

Fish Species

6 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
MuskyCommon
PanfishCommon
Smallmouth BassCommon
WalleyeCommon
Largemouth BassPresent
Northern PikePresent

Boat Landings

3 landings

NameTypeRampTrailersFee
Boat Landing 1Public
Boat Landing 2Public
Boat Landing 3Public

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
Purple LoosestrifeConfirmed
Rusty CrayfishConfirmed
Yellow IrisConfirmed

Data sourced from Wisconsin DNR lake surveys. Last scraped: 3/24/2026.