Koepmier Lake

Milwaukee County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)14
Maximum Depth (ft)35
Mean Depth (ft)—
Shoreline (miles)—
Bottom Composition0% sand, 1% gravel, 0% rock, 99% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinSEEPAGE
Lake Classlake
Public Access—
Township—
GPS Coordinates42.92010° N, 88.00190° W
WBIC (DNR ID)5900

Fish Species

3 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
PanfishAbundant—
Largemouth BassPresent—
Northern PikePresent—

Boat Landings

No boat landing data available.

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
Curly-Leaf PondweedConfirmed—
Phragmites (non-native)Confirmed—
Purple LoosestrifeConfirmed—
Spiny NaiadConfirmed—

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