North Lake
Waukesha County, Wisconsin · WBIC 850800
Size
437 acres
Max depth
78 ft
DNR lake type
Complex, Two Story
Water clarity
9 ft
Moderate, measured Jul 2024
A deep lake type that can hold a cold layer below the warm surface in summer. This describes the lake type in general, not this lake in particular.
Outline
Drawn from the DNR's 24K hydrography (surveyed 1994), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
9 ft Secchi depthModerate
Last measured Jul 31, 2024. 232 readings on record, 1986 to 2024.
Typical summer clarity (June to September): 9 ft, moderate, from 43 readings (2012 to 2024).
Secchi depth is how far down a white disk stays visible. A bigger number means clearer water. Clear means a Secchi depth of 10 feet or more, moderate 5 to 10 feet, low under 5 feet.
Wisconsin DNR water monitoring (volunteer and staff), via the Water Quality Portal; station NORTH LAKE - DEEP HOLE. Checked Oct 23, 2026.
Water temperature
Last measured Jul 31, 2024, too long ago to show as the current temperature.
A typical year Modeled estimate
- Ice goes outabout Apr 10 (Mar 30 to Apr 13)
- Surface reaches 48°Fabout Apr 29 (Apr 20 to May 5)
- Surface reaches 64°Fabout May 23 (May 10 to May 24)
- June surface74°F, usually 73 to 76°F
- July surface80°F, usually 78 to 82°F
- August surface77°F, usually 74 to 79°F
Forms a warm top layer around Apr 26, lasting about 192 days.
A computer model of this lake's typical weather and water, built from 15 years, 2005 to 2019. Ranges show the middle half of years. The model was not calibrated against measured temperatures for this lake. It is an estimate, not a measurement.
Measured: Wisconsin DNR via the Water Quality Portal (checked Oct 23, 2026). Modeled: U.S. Geological Survey lake temperature data release (doi:10.5066/P9CA6XP8).
Today at the lake
Forecast: National Weather Service (no endorsement implied). Sunrise, sunset and moon phase are calculated. The moon phase can be a day off.
Stocking history
- Black Crappielast stocked 2023 (small fingerling); stocked in 1 year since 2010
- Walleyelast stocked 2023 (large fingerling and yearling); stocked in 6 years since 2010
Stocking shows what was added to the lake, not what is in it now.
Wisconsin DNR annual fish stocking summary. Checked Oct 23, 2026.
Fish recorded near this lake
- Central Mudminnow Umbra limi2020; 1 record
- Logperch Percina caprodes2021; 1 record
Recorded in open fish survey and museum records (GBIF). A record shows a fish was found near this lake in that year, not that it is there now, and says nothing about how many. Most coordinates are rounded to about 1 km, so a record is attached only when one lake is the clear match.
Open fish survey and museum records from GBIF; datasets are listed on the sources page. Checked Oct 23, 2026.
More lakes in Waukesha County
- Cornell Lake0.8 miles away
- Moose Lake1.5 miles away
- Beaver Lake1.9 miles away
- Funks Millpond1.9 miles away
- Pine Lake2.1 miles away
- Garvin Lake2.4 miles away
Where this comes from
- Size, depth and lake typeWisconsin DNR lake classifications, checked Oct 23, 2026
- OutlineWisconsin DNR 24K hydrography, checked Oct 23, 2026
- Stocking historyWisconsin DNR annual fish stocking summary, checked Oct 23, 2026
- Regulations linkWisconsin DNR fishing regulations (linked, not restated), checked Oct 23, 2026
- Water clarityWisconsin DNR water monitoring, via the Water Quality Portal, checked Oct 23, 2026
- Typical-year temperatureU.S. Geological Survey lake temperature model (modeled estimate), checked Oct 23, 2026
- Fish recordedOpen fish survey and museum records, via GBIF, checked Oct 23, 2026
- VHS statusWisconsin DNR VHS status by watershed, checked Oct 24, 2026
- Depth map linkWisconsin DNR lake maps list, checked Oct 24, 2026
See data sources for what each source covers, and about for how the numbers are matched to lakes.
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