WI · ranked by public data

Biggest Lakes in Green County, Wisconsin, Ranked

1 Green County lake cover at least 50 acres, out of 6 documented lakes in the county. Updated July 2026.

163 ac
63 acres
Green County, WI
Beckman Lake
enhancedDepth mapWater data
42.58, -89.7763 acres | 12 ft max1 public access pointPanfish, Largemouth Bass
63 acres · 12 ft max depth · 1 public landing

Methodology

How this list is built

Ranked strictly by documented surface acres from DNR lake records.
Flowages and reservoirs count — they are lakes in the DNR's books, and some of the state's biggest water is impounded.
Lakes without documented acreage are excluded rather than estimated.
Lakes under 50 acres — or without documented acreage — are excluded from rankings.
Public access is shown for every lake but never affects the ranking.

FAQ

Green County lake records

What is the biggest lake in Green County?

Beckman Lake — Beckman Lake in Green County is the biggest lake in Green County, at 63 acres.

Biggest lakes statewide Deepest lakes in Green County Clearest lakes in Green County Lakes with the most public access in Green County All Green County lakes

Source data: Wisconsin DNR lake and monitoring records as aggregated by LakeList. Figures reflect the most recent documented values, not new surveys — verify access and rules before you go. Lake outlines are shoreline shapes from LakeList and the USGS National Hydrography Dataset; they illustrate a lake's form and are not depth or navigation charts.