Johnson Lake
Oneida County, Wisconsin · WBIC 1541100
Size
78 acres
Max depth
42 ft
DNR lake type
Simple, Two Story
Water clarity
8.3 ft
Moderate, measured Aug 2000
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
Numbered dots are boat landings; tap one for directions. The list below has the same numbers. Drawn from the DNR's 24K hydrography (surveyed 1982), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
8.3 ft Secchi depthModerateOlder reading
Last measured Aug 29, 2000. 1 reading on record, 2000.
Only one reading is on record.
Nothing has been measured in the last 5 years, so this may not match the lake today.
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 JOHNSON LAKE - JOHNSON LAKE. Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 23 (Apr 15 to Apr 28)
- Surface reaches 48°Fabout May 1 (Apr 24 to May 9)
- Surface reaches 64°Fabout May 25 (May 13 to May 27)
- June surface70°F, usually 69 to 71°F
- July surface75°F, usually 74 to 76°F
- August surface72°F, usually 70 to 74°F
Forms a warm top layer around May 1, lasting about 169 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.
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
- Muskellungelast stocked 2021 (large fingerling); stocked in 6 years since 2010
- Walleyelast stocked 2020 (small fingerling); stocked in 1 year 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
- 1Johnson Lake Public Access (listed under Vilas County)Boat ramp · Concrete Plank surface · State(dnr)
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
More lakes in Oneida County
- Bullhead Lake1.1 miles away
- Snake Lake1.2 miles away
- Hill Lake1.9 miles away
- Patricia Lake2.1 miles away
- Minocqua Lake2.4 miles away
- Kawaguesaga 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
- 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
- Typical-year temperatureU.S. Geological Survey lake temperature model (modeled estimate), 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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