WI · ranked by public data

Clearest Lakes in Ozaukee County, Wisconsin, Ranked

1 Ozaukee County lake are at least 50 acres with a current DNR water-clarity reading, out of 22 documented lakes in the county. Updated July 2026.

12.5 ft
60 acres
Ozaukee County, WI
Spring Lake
enhancedDepth mapWater data
43.54, -87.9660 acres | 22 ft max0 public access pointsLargemouth Bass, Panfish
2.5 ft water clarity (Aug 2025) · 60 acres, 22 ft max depth · No verified public access

Methodology

How this list is built

Ranked by the most recent documented Secchi disk reading (feet of visibility) from DNR/CLMN monitoring.
Readings older than 10 years are excluded — a decades-old reading no longer says anything about today's water.
Lakes under 50 acres — or without documented acreage — are excluded from rankings.
Readings deeper than the lake's own documented maximum depth are treated as source-data errors and excluded.
Clarity swings with season and weather, so the reading date is shown for every lake.
Only monitored lakes can rank. A clear lake nobody measures cannot appear here — this list rewards documentation as much as clarity.

FAQ

Ozaukee County lake records

What is the clearest lake in Ozaukee County?

Spring Lake — By most recent Secchi reading, Spring Lake in Ozaukee County is the clearest monitored lake in Ozaukee County, with 2.5 feet of visibility.

Clearest lakes statewide Deepest lakes in Ozaukee County Biggest lakes in Ozaukee County Lakes with the most public access in Ozaukee County All Ozaukee County lakes

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.