Swan Lake
Columbia County, Wisconsin · WBIC 179800
The DNR lists this lake's watershed (Swan Lake-Fox River) as suspect or infected with VHS, a fish virus. The listing covers the watershed, not a test of this lake. About VHS
Size
406 acres
Max depth
82 ft
DNR lake type
Complex, Riverine
Water clarity
5 ft
Moderate, measured Sep 2026
A river-like water type, with flow instead of a still basin. 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 1984), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
5 ft Secchi depthModerate
Last measured Sep 28, 2026. 234 readings on record, 1988 to 2026.
Typical summer clarity (June to September): 4.5 ft, low, from 16 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 SWAN LAKE - DEEP HOLE. Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 6 (Mar 29 to Apr 13)
- Surface reaches 48°Fabout Apr 28 (Apr 18 to May 5)
- Surface reaches 64°Fabout May 21 (May 10 to May 23)
- June surface75°F, usually 74 to 77°F
- July surface81°F, usually 79 to 83°F
- August surface77°F, usually 75 to 79°F
Forms a warm top layer around Apr 25, lasting about 195 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
- Walleyelast stocked 2025 (large fingerling and small fingerling); stocked in 9 years since 2010
- Muskellungelast stocked 2019 (large fingerling); stocked in 9 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 Bullhead Ameiurus melas2002; 1 record
- Black Crappie Pomoxis nigromaculatus2002 to 2003; 2 records
- Bluegill Lepomis macrochirus2002 to 2003; 2 records
- Bluntnose Minnow Pimephales notatus2003; 1 record
- Bowfin Amia calva2002; 1 record
- Brown Bullhead Ameiurus nebulosus2002; 1 record
- Common Carp Cyprinus carpio2002; 1 record
- Freshwater Drum Aplodinotus grunniens2002; 1 record
- Gizzard Shad Dorosoma cepedianum2002 to 2003; 2 records
- Green Sunfish Lepomis cyanellus2002 to 2003; 2 records
- Johnny Darter Etheostoma nigrum2003; 1 record
- Largemouth Bass Micropterus salmoides1999 to 2005; 16 records
- Longnose Gar Lepisosteus osseus2003; 1 record
- Muskellunge Esox masquinongy1999 to 2005; 16 records
- Northern Pike Esox lucius1999 to 2005; 26 records
- Pumpkinseed Lepomis gibbosus2002; 1 record
- Quillback Carpiodes cyprinus2002 to 2003; 2 records
- Rock Bass Ambloplites rupestris2002; 1 record
- Smallmouth Bass Micropterus dolomieu1999 to 2005; 13 records
- Smallmouth Buffalo Ictiobus bubalus2002; 1 record
- Spotfin Shiner Cyprinella spiloptera2003; 1 record
- Spotted Sucker Minytrema melanops2002; 1 record
- Walleye Sander vitreus1998 to 2005; 16 records
- Warmouth Lepomis gulosus2002; 1 record
- White Bass Morone chrysops2000 to 2003; 2 records
- White Sucker Catostomus commersonii2002; 1 record
- Yellow Bass Morone mississippiensis2002 to 2003; 4 records
- Yellow Bullhead Ameiurus natalis2002; 1 record
- Yellow Perch Perca flavescens2002 to 2003; 2 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
- 1Swan Lake Public Boat AccessBoat ramp · Concrete surface · Accessible features · State(dnr)
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
More lakes in Columbia County
- Lake George1.7 miles away
- West Lake1.9 miles away
- Spring Lake2.9 miles away
- Park Lake4.0 miles away
- Curtis Lake4.3 miles away
- Wyona Lake (Wyocena Millpond)4.4 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
- 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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