WI · ranked by public data
5 Columbia County lakes cover at least 50 acres, out of 44 documented lakes in the county. Updated July 2026.
Columbia County, WI
7,197 acres · 24 ft max depth · 15 public landings · DNR impairment listed
Columbia County, WI
407 acres · 82 ft max depth · 1 public landing · DNR impairment listed
Columbia County, WI
330 acres · 27 ft max depth · 4 public landings
Columbia County, WI
109 acres · 20 ft max depth · 1 public landing
Columbia County, WI
70 acres · 42 ft max depth · 2 public landings
Methodology
FAQ
Lake Wisconsin — Lake Wisconsin in Columbia County is the biggest lake in Columbia County, at 7,197 acres.
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.