WI · ranked by public data
3 Iowa County lakes are at least 50 acres with a documented maximum depth, out of 14 documented lakes in the county. Updated July 2026.
Iowa County, WI
32 ft maximum depth · 136 acres · 1 public landing · DNR impairment listed
Iowa County, WI
28 ft maximum depth · 81 acres · 1 public landing · DNR impairment listed
Iowa County, WI
14 ft maximum depth · 56 acres · 1 public landing
Methodology
FAQ
Twin Valley Lake — Twin Valley Lake in Iowa County is the deepest documented lake in Iowa County, at 32 feet maximum depth.
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.