WI · ranked by public data
17 Waukesha County lakes are at least 50 acres with a current DNR water-clarity reading, out of 89 documented lakes in the county. Updated July 2026.
Waukesha County, WI
41 ft water clarity (Jun 2026) · 711 acres, 85 ft max depth · 1 public landing
Waukesha County, WI
16 ft water clarity (Sep 2025) · 83 acres, 61 ft max depth · 3 public landings
Waukesha County, WI
15.5 ft water clarity (Jun 2026) · 97 acres, 50 ft max depth · 1 public landing
Waukesha County, WI
15 ft water clarity (Oct 2025) · 239 acres, 36 ft max depth · 2 public landings
Waukesha County, WI
14.1 ft water clarity (Sep 2025) · 981 acres, 90 ft max depth · 1 public landing
Waukesha County, WI
13.5 ft water clarity (Aug 2025) · 217 acres, 40 ft max depth · 2 public landings
Waukesha County, WI
13.5 ft water clarity (Oct 2025) · 65 acres, 31 ft max depth · 1 public landing
Waukesha County, WI
12 ft water clarity (Aug 2025) · 277 acres, 60 ft max depth · No verified public access
Waukesha County, WI
11.5 ft water clarity (Sep 2025) · 288 acres, 44 ft max depth · 2 public landings
Waukesha County, WI
10 ft water clarity (Aug 2025) · 94 acres, 35 ft max depth · 1 public landing
| Rank | Lake | County | Water clarity | Acres | Max depth | Public access |
|---|---|---|---|---|---|---|
| 11 | Oconomowoc Lake | Waukesha | 8 ft | 818 | 60 ft | — |
| 12 | Crooked Lake | Waukesha | 8 ft | 51 | 16 ft | — |
| 13 | School Section Lake | Waukesha | 7.5 ft | 122 | 8 ft | 1 landing |
| 14 | Lower Nashotah Lake | Waukesha | 7 ft | 93 | 43 ft | — |
| 15 | Lower Phantom Lake | Waukesha | 6.9 ft | 373 | 12 ft | 1 landing |
| 16 | Hunters Lake | Waukesha | 6 ft | 54 | 36 ft | 1 landing |
| 17 | Pewaukee Lake | Waukesha | 4 ft | 2,437 | 45 ft | 3 landings |
Methodology
FAQ
Pine Lake — By most recent Secchi reading, Pine Lake in Waukesha County is the clearest monitored lake in Waukesha County, with 41 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.