Diamond Lake

Bayfield County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)322
Maximum Depth (ft)83
Mean Depth (ft)33
Shoreline (miles)—
Bottom Composition20% sand, 70% gravel, 0% rock, 10% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinDRAINAGE
Lake Classlake
Public Access—
Township—
GPS Coordinates46.26270° N, 91.14530° W
WBIC (DNR ID)2897100

Fish Species

5 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassCommon—
PanfishCommon—
Smallmouth BassCommon—
Northern PikePresent—
WalleyePresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Diamond Lake AccessRAMP—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—
Chinese Mystery SnailConfirmed—
Rainbow SmeltConfirmed—

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