Green Lake
Walworth County, Wisconsin · WBIC 755800
This lake has fishing rules that differ from the standard ones for its area. Check the official rules before you fish. Official regulations
Size
311 acres
Max depth
55 ft
DNR lake type
Complex, Warm, clear water color
Water clarity
9.6 ft
Moderate, measured Aug 2026
A warm-water lake type: the DNR groups it with lakes that warm up through summer. This describes the lake type in general, not this lake in particular.
Outline
Numbered dots are boat landings; tap one for directions. The list below has the same numbers. Drawn from the DNR's 24K hydrography (surveyed 1971), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
9.6 ft Secchi depthModerate
Last measured Aug 12, 2026. 249 readings on record, 1978 to 2026.
Typical summer clarity (June to September): 12 ft, clear, from 109 readings (2012 to 2026).
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 Green Lake - Deepest Point. Checked Oct 23, 2026.
Water temperature
Last measured Sep 17, 2024, too long ago to show as the current temperature.
Measured: Wisconsin DNR via the Water Quality Portal (checked Oct 23, 2026).
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
- Walleyelast stocked 2025 (large fingerling); 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.
Boat landings
- 1Lauderdale Lakes - Westshore DriveBoat ramp · Concrete Plank surface · Township
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
Water level and flow
U.S. Geological Survey gauges at or beside this lake. Readings are provisional and fetched when you open the page.
More lakes in Walworth County
- Middle Lake0.7 miles away
- Mill Lake1.1 miles away
- Pleasant Lake1.2 miles away
- Lake Wandawega2.4 miles away
- Silver Lake3.6 miles away
- Peters Lake3.6 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
- Boat landingsWisconsin DNR public boat access sites, checked Oct 23, 2026
- Water clarityWisconsin DNR water monitoring, via the Water Quality Portal, checked Oct 23, 2026
- Water level and flowU.S. Geological Survey gauges (readings are live), 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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