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School Section Lake
Enhanced dataHistorical depth chart
School Section LakeWaupaca County, WI
Historical source depth chart available1 converted source DNR map sheet can be panned and zoomed in the browser. Interactive contours stay hidden until visual QA passes. Historical survey — not for navigation.
View browser depth chartLakeList assistant
Plan your lake day
Fishing spots, food, lodging, marinas, and rentals around School Section Lake.
Start here
Fishing forecast
Best windows for School Section 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
School Section Lake water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
75°FPeak summer
Seasonal estimate. Checking current National Weather Service air temperatures…
Warmest water of the year. Fish hold deeper or feed in low light; swimming and watersports are at their best.
Estimates are modeled, not measured. Actual temperatures vary with depth, wind mixing, and recent weather — verify conditions before swimming, boating, or heading onto ice.
DNR water check
Water quality quick take
From Wisconsin DNR / Citizen Lake Monitoring readings at School Section Outlet.
Sampled Jun 2026
Somewhat hazy water — the latest clarity reading of 3 ft ranks among the lowest of monitored Wisconsin lakes.
Based on the newest individual DNR samples — too few to average.54Eutrophic5-yr summer TSI
Nutrient-rich, greener water — more algae and plant growth, common in shallower lakes.
Water claritySecchi disk depth
3 ftLatest single sample · 2026-06-23
HazyClearer than 9% of 597 monitored Wisconsin lakes with current readings.
All readings by year · station details · methodology
Latest individual samples: Secchi 3 ft (2026-06-23).
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.
School Section OutletStation 10061211 · 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 sheetView DNR depth mapHistorical map · not for navigationFishing 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
School Section Lake depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
School Section 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 283600 · 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.
Wisconsin DNR fisheries survey
Fish population survey
Structured LakeList extraction from the 2021 DNR fisheries survey. Population estimates, density, and catch-rate indices use different units, methods, and scopes, so each value is presented in its original form rather than normalized against a different measure.
Survey indicatorsValues keep their source unit and method; unlike measures are not scaled or compared.
Management contextSchool Section Lake (WBIC 283600) only; panfish-focused netting and bass/panfish electrofishing gear scopes are retained.
Human-reviewed, page-evidenced 2021 fisheries metrics for School Section Lake (WBIC 283600).
- Historical fisheries snapshot; not current fishing regulations or navigation guidance.
- Only metrics explicitly supported by the cited source page were promoted.
- Relative-abundance indices, population estimates, gear limitations and size thresholds retain source scope.
Black Crappie
82 fishFish measured in 2021 spring fyke netting · p. 28.3 inchesAverage length in 2021 spring fyke netting · p. 25.2 inchesMinimum observed length in 2021 spring fyke netting · p. 212.6 inchesMaximum observed length in 2021 spring fyke netting · p. 2
Bluegill
154 fish2021 spring electrofishing catch · p. 1100 fish/mile2021 spring electrofishing CPUE · p. 11.3 fish/mile2021 spring electrofishing CPUE for fish at least 7.0 inches · p. 1154 fishFish measured in 2021 spring electrofishing · p. 2
Largemouth Bass
22 fish2021 spring electrofishing catch · p. 114.3 fish/mile2021 spring electrofishing CPUE · p. 14.5 fish/mile2021 spring electrofishing CPUE for fish at least 14.0 inches · p. 1
Pumpkinseed
32 fish2021 spring electrofishing catch · p. 120.8 fish/mile2021 spring electrofishing CPUE · p. 10 fish/mile2021 spring electrofishing CPUE for fish at least 7.0 inches · p. 1
Yellow Perch
6 fish2021 spring electrofishing catch · p. 13.9 fish/mile2021 spring electrofishing CPUE · p. 10 fish/mile2021 spring electrofishing CPUE for fish at least 8.0 inches · p. 1
School Section Lake comprehensive survey, 2021Matched by exact wbic name county · WBICs 283600 · verified 2026-07-19Wisconsin DNR fisheries survey report; LakeList operator documented permission to leverage this public report with source attribution.
39surface acres
38max depth feet
1public access points
44.5493, -88.9299latitude, longitude
Access
Public access points
Boat launchSchool Section Lake Access44.54641, -88.93247Managed by TOWNSHIPTOWN OF UNIONRamp surface: GravelADA-accessible feature: NoVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
PanfishLargemouth BassNorthern Pike
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2018, when 385 fish were recorded across 1 entry.
2018
Northern PikeMud Lake - Madison Chain Of Lakes · Large Fingerling
3858.5 in average
2017
Northern PikeMud Lake - Madison Chain Of Lakes · Large Fingerling
2258.5 in average
2014
Northern PikeMud Lake - Madison Chain Of Lakes · Small Fingerling
2064.6 in average
Depth FAQ
How deep is School Section Lake?
School Section Lake is 38 feet deep at its deepest point and averages about 28 feet, according to Wisconsin DNR records.
Is there a free depth map of School Section Lake?
Yes. 1 scanned Wisconsin DNR lake survey map sheet is free to view and zoom on LakeList. These historical surveys are not for navigation.
Where does the School Section Lake depth map come from?
The map sheets are converted from official Wisconsin DNR lake survey documents, with the source URL, checksum, and retrieval date retained for every sheet. Historical surveys are not for navigation.
Trust and freshness
Where this lake data comes from
Wisconsin DNR Lake Mapsname, coordinates, county, source identifiers
LakeList record updated 2026-07-14