Below is the list of named lakes/reservoirs in Wisconsin, as identified by the USGS[1] and/or the WIDNR.
The WIDNR identifies over 8,000 unnamed lakes/reservoirs in Wisconsin, although this is not an exhaustive list.
The northern counties have a higher density of lakes as a result, in part, from the Laurentide ice sheet during the Wisconsin glaciation.
As counties in the Driftless Area of southwestern Wisconsin were not covered by ice at that time, there are significantly fewer lakes.
The unnamed lakes column only includes those identified by the WIDNR, which is not exhaustive.