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Cedar Lake
Enhanced dataInteractive depth contours
Cedar LakePolk County, WI
Contours load with map Access
Interactive depth contours5-foot typical interval · Sonar-derived depth (C-MAP Genesis) · Gaps interpolated · Not for navigation
Source: C-MAP Genesis community sonar (derived)high confidence · QA passed · Select a contour to inspect its mapped depthDepths decoded from C-MAP Genesis Social Map community sonar recordings (used with permission), covering 88% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 32-ft maximum depth. More accurate than a pure model, but still an estimate. Not for navigation.LakeList assistant
Plan your lake day
Fishing spots, food, lodging, marinas, and rentals around Cedar Lake.
Start here
Fishing forecast
Best windows for Cedar Lake
Weather-based planning built from the National Weather Service hourly forecast near this lake.
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Checking wind, precipitation, and near-term weather windows.
Water temperature
Cedar Lake water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
74°FWarm
Seasonal estimate. Checking current National Weather Service air temperatures…
Comfortable summer pattern. Bass and panfish are active; early and late hours beat the midday heat.
Estimates are modeled, not measured. Actual temperatures vary with depth, wind mixing, and recent weather — verify conditions before swimming, boating, or heading onto ice.
Wisconsin DNR water assessment
Impaired waterbody listed
The DNR lists this waterbody as impaired. This notice is not itself a closure; review the official assessment and current guidance before your trip.
303(d) / impairment recordRecreation restrictions noted
Excess Algal Growth, Elevated pHPollutants: Total Phosphorus
- Status
- TMDL Approved
- Public health
- General Advice
- Recreation
- Recreational Restrictions
- Aquatic life
- Not specified
Water is impaired due to one or more pollutants and associated quality impacts.
Review DNR water quality Check consumption advice Source updated 2026-03-25 · LakeList verified 2026-07-12
DNR water check
Water quality quick take
From Wisconsin DNR / Citizen Lake Monitoring readings at Cedar Lake - Deep Hole - Mid-Lake Off Demmings Point.
Sampled Apr 2026
Somewhat hazy water — summer clarity of 5.9 ft is lower than most monitored Wisconsin lakes.
Based on July–August volunteer averages from 2023–2025; each value shows its own year.61Eutrophic5-yr summer TSI
Nutrient-rich, greener water — more algae and plant growth, common in shallower lakes.
Water claritySecchi disk depth
5.9 ftJul–Aug 2025 avg (4 readings)
HazyImproving — up ~33% vs earlier years
Clearer than 44% of 596 monitored Wisconsin lakes with current readings.
AlgaeChlorophyll-a
18 µg/LJul–Aug 2025 avg (2 readings)
ElevatedImproving — down ~66% vs earlier years
NutrientsTotal phosphorus — fuels plant & algae growth
21.8 µg/LJul–Aug 2023 avg (4 readings)
ModerateImproving — down ~51% vs earlier years
Moderate phosphorus can support noticeable plant/algae growth.
All readings by year · station details · methodology
Summer averages (July/August)
July/August means; counts in parentheses show how many samples went into each average.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 2025 | 5.9 ft (4) | 18.0 µg/L (2) | — |
| 2024 | 8.0 ft (5) | 8.0 µg/L (1) | — |
| 2023 | 9.2 ft (7) | 7.3 µg/L (6) | 21.8 µg/L (4) |
| 2022 | 4.9 ft (5) | 48.9 µg/L (7) | 83.5 µg/L (6) |
| 2021 | 7.0 ft (7) | 27.0 µg/L (7) | — |
| 2020 | 5.6 ft (5) | 23.3 µg/L (7) | — |
| 2019 | 7.8 ft (7) | 10.5 µg/L (6) | 20.0 µg/L (1) |
| 2018 | 5.5 ft (6) | 12.8 µg/L (5) | — |
| 2017 | 6.8 ft (4) | 17.8 µg/L (6) | 55.0 µg/L (1) |
| 2016 | 4.0 ft (2) | 35.5 µg/L (2) | 117.0 µg/L (1) |
Latest individual samples: Secchi 8 ft (2026-04-22), chlorophyll-a 63 µg/L (2025-09-08), and total phosphorus 128 µg/L (2025-09-08).
Secchi clarity is how deep a black-and-white disk stays visible from the surface — more feet means clearer water.
Chlorophyll-a is an algae pigment; higher values signal more algae in the water column.
Total phosphorus is a nutrient that feeds algae and aquatic plants. It is not a weed survey — depth, bottom type, water movement, and management change the actual lake experience.
Cedar Lake - Deep Hole - Mid-Lake Off Demmings PointStation 563057 · TSI based on chlorophyll
Modeled from DNR/CLMN monitoring — not a safety or swim-condition report. Verify current conditions locally. LakeList verified 2026-07-12.Official Wisconsin information
Plan with DNR sources
LakeList links to the authoritative record so you can verify maps, rules, and current notices before leaving.
Historical DNR depth maps1 converted map sheetFishing regulationsVerify current seasons, limits, and restrictionsOfficial DNR lake pageFacts, advisories, boating, and water qualityWater quality reportsMonitoring stations, clarity, and DNR reportsInvasive speciesVerified, observed, and historical AIS recordsBoating ordinancesLocal slow-no-wake and water-use restrictionsFish consumption advisoriesStatewide and waterbody-specific health guidance
Historical depth maps are not for navigation. Verify regulations and access at the official source before your trip.
Historical Wisconsin DNR maps
Cedar Lake depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Cedar Lake · sheet 1
Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.
Source: Wisconsin DNR · WBIC 2615100 · image navigation only; spatial alignment pending · Historical lake maps are not for navigation.
Source: Wisconsin Department of Natural Resources. Converted for browser access with source URLs, checksums, and retrieval dates retained. Historical lake maps are not for navigation.
1,120surface acres
32max depth feet
1public access points
45.2143, -92.5720latitude, longitude
Access
Public access points
Boat launchAccess at North End of Lake off M45.23147, -92.57153Managed by Wisconsin DNR
DNR verifiedDirections
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
WalleyeMuskyNorthern PikeLargemouth BassPanfish
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2025, when 18,165 fish were recorded across 2 entries.
2025
MuskellungeUpper Chippewa River · Large Fingerling
55312.6 in average
2025
WalleyeChippewa/St. Croix · Large Fingerling
17,6127.1 in average
2023
MuskellungeUpper Chippewa River · Large Fingerling
55411.7 in average
2023
WalleyeChippewa/St. Croix · Large Fingerling
16,7946.9 in average
2022
MuskellungeUpper Chippewa River · Large Fingerling
56011.9 in average
2021
MuskellungeUpper Chippewa River · Large Fingerling
33413.1 in average
2021
WalleyeMississippi Headwaters · Large Fingerling
18,4686.5 in average
2019
MuskellungeUpper Chippewa River · Large Fingerling
50012.6 in average
2019
WalleyeMississippi Headwaters · Large Fingerling
15,6806.6 in average
2017
MuskellungeUpper Chippewa River · Large Fingerling
17811.5 in average
2015
MuskellungeUpper Chippewa River · Large Fingerling
99612.1 in average
2013
MuskellungeUpper Chippewa River · Large Fingerling
1,00011.5 in average
Showing the 12 most recent records from 13 published entries.
Depth FAQ
How deep is Cedar Lake?
Cedar Lake is 32 feet deep at its deepest point, according to Wisconsin DNR records.
Is there a free depth map of Cedar Lake?
Yes. LakeList publishes a free interactive depth contour map of Cedar Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from C-MAP Genesis community sonar (derived) survey data.
Where does the Cedar Lake depth map come from?
The interactive depth contours are derived from C-MAP Genesis community sonar (derived). Each contour set passes a visual QA review against the source document before it is published. The depths are derived from community sonar recordings (C-MAP Genesis Social Map, used with permission), with gaps between recordings interpolated; not for navigation.
Trust and freshness
Where this lake data comes from
Wisconsin DNR Lake Pagesname, coordinates, county, source identifiers
LakeList record updated 2026-05-25
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