WI · ranked by public data
4 Winnebago County lakes are at least 50 acres with a documented maximum depth, out of 9 documented lakes in the county. Updated July 2026.
Winnebago County, WI
21 ft maximum depth · 131,939 acres · 20 public landings
Winnebago County, WI
11 ft maximum depth · 14,024 acres · 6 public landings
Winnebago County, WI
9 ft maximum depth · 8,581 acres · 3 public landings · DNR impairment listed
Winnebago County, WI
9 ft maximum depth · 4,553 acres · 2 public landings · DNR impairment listed
Methodology
FAQ
Lake Winnebago — Lake Winnebago in Winnebago County is the deepest documented lake in Winnebago County, at 21 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.