WI · ranked by public data
5 Marquette County lakes are at least 50 acres with a current DNR water-clarity reading, out of 63 documented lakes in the county. Updated July 2026.
Marquette County, WI
23 ft water clarity (May 2026) · 119 acres, 60 ft max depth · 2 public landings
Marquette County, WI
18 ft water clarity (Jun 2026) · 81 acres, 60 ft max depth · No verified public access
Marquette County, WI
16.7 ft water clarity (Oct 2023) · 151 acres, 33 ft max depth · 1 public landing
Marquette County, WI
5 ft water clarity (Sep 2023) · 54 acres, 6 ft max depth · 1 public landing
Marquette County, WI
4 ft water clarity (Aug 2025) · 2,179 acres, 8 ft max depth · 5 public landings · DNR impairment listed
Methodology
FAQ
Crystal Lake — By most recent Secchi reading, Crystal Lake in Marquette County is the clearest monitored lake in Marquette County, with 23 feet of visibility.
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.