Long Lake
Polk County, Wisconsin · WBIC 2478200
The DNR lists this lake's watershed (Balsam Branch-Apple River) as suspect or infected with VHS, a fish virus. The listing covers the watershed, not a test of this lake. About VHS
This lake has fishing rules that differ from the standard ones for its area. Check the official rules before you fish. Official regulations
Size
272 acres
Max depth
17 ft
DNR lake type
Simple, Warm, dark water color
Water clarity
6.5 ft
Moderate, measured Sep 2025
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 1978), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
6.5 ft Secchi depthModerate
Last measured Sep 23, 2025. 1,255 readings on record, 1992 to 2025.
Typical summer clarity (June to September): 5.9 ft, moderate, from 919 readings (2012 to 2025).
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 LONG LAKE - DEEP HOLE. Checked Oct 23, 2026.
Water temperature
Last measured Sep 23, 2025, too long ago to show as the current temperature.
A typical year Modeled estimate
- Ice goes outabout Apr 14 (Apr 8 to Apr 25)
- Surface reaches 48°Fabout Apr 21 (Apr 14 to May 3)
- Surface reaches 64°Fabout May 21 (May 10 to May 25)
- June surface73°F, usually 71 to 73°F
- July surface78°F, usually 77 to 80°F
- August surface74°F, usually 73 to 77°F
Forms a warm top layer around Jun 10, lasting about 46 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
- Northern Pikelast stocked 2016 (large fingerling and small fingerling); stocked in 4 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
- Black Crappie Pomoxis nigromaculatus1974 to 2006; 8 records
- Bluegill Lepomis macrochirus1965 to 2006; 10 records
- Brown Bullhead Ameiurus nebulosus1969; 2 records
- Common Shiner Luxilus cornutus1965; 1 record
- Golden Shiner Notemigonus crysoleucas1965 to 2006; 4 records
- Largemouth Bass Micropterus salmoides1966 to 2006; 15 records
- Northern Pike Esox lucius1966 to 2006; 17 records
- Pumpkinseed Lepomis gibbosus1965 to 2006; 11 records
- Rock Bass Ambloplites rupestris1965; 1 record
- Warmouth Lepomis gulosus1965; 1 record
- White Sucker Catostomus commersonii1966 to 1974; 3 records
- Yellow Perch Perca flavescens1965 to 2006; 6 records
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.
Boat landings
- 1Long Lake Boat RampBoat ramp · Concrete surface · State(dnr)
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
Fishing from shore
- LONG LAKE FISHING PIERDirections · DNR details
Wisconsin DNR shore fishing sites. Checked Oct 24, 2026.
More lakes in Polk County
- Loveless Lake1.2 miles away
- Laurel Lake2.0 miles away
- Elkins Lake2.0 miles away
- Little Bass Lake2.0 miles away
- Twenty-Ninth Lake2.3 miles away
- Camp Douglas Lake3.3 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
- Fish recordedOpen fish survey and museum records, via GBIF, checked Oct 23, 2026
- VHS statusWisconsin DNR VHS status by watershed, checked Oct 24, 2026
- Shore fishing sitesWisconsin DNR shore fishing sites, 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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