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Lake Napowan
Enhanced dataInteractive depth contours
Lake NapowanWaushara County, WI
Contours load with map Access
Interactive depth contours5-foot typical interval · Modeled depth estimate · Not a survey · Not for navigation
Source: LakeList depth modelmedium confidence · QA passed · Select a contour to inspect its mapped depthModeled depth estimate: contours computed from the lake's shoreline shape and its documented 18-ft maximum depth (depth grows with distance from shore, calibrated to the documented mean depth where available). This is a smooth mathematical model, not a survey - real holes, bars, and drop-offs will differ. Community sonar (C-MAP Genesis) overlays where recorded. Not for navigation.LakeList assistant
Plan your lake day
Fishing spots, food, lodging, marinas, and rentals around Lake Napowan.
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Fishing forecast
Best windows for Lake Napowan
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
Lake Napowan 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.
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
Lake Napowan depth maps
1 converted map sheet · 1 map-aligned. These historical surveys are not for navigation.
Navigable depth map
Lake Napowan · 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 190200 · map alignment passed · 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.
52surface acres
18max depth feet
1public access points
44.1471, -89.1541latitude, longitude
Access
Public access points
Boat launchLake Napowan Boat Ramp44.14491, -89.15509Managed by TOWNSHIPTOWN OF MOUNT MORRISRamp surface: GravelADA-accessible feature: NoVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassNorthern PikePanfish
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2024, when 500 fish were recorded across 1 entry.
2024
WalleyeUnspecified · Small Fingerling
5006.0 in average
2023
Black CrappieUnspecified · Large Fingerling
9003.0 in average
2023
Yellow PerchUnspecified · Large Fingerling
9003.0 in average
2022
Fathead MinnowUnspecified · Adult
44,0002.0 in average
2022
WalleyeUnspecified · Yearling
3007.0 in average
2020
Fathead MinnowUnspecified · Adult
Not reported2.0 in average
2020
WalleyeUnspecified · Fall Yearling
4008.0 in average
2019
Black CrappieUnspecified · Yearling
4004.0 in average
2019
Fathead MinnowUnspecified · Yearling
22,5002.0 in average
2019
Yellow PerchUnspecified · Yearling
4006.0 in average
2018
Fathead MinnowUnspecified · Adult
Not reported2.0 in average
2018
WalleyeUnspecified · Large Fingerling
2007.0 in average
Showing the 12 most recent records from 30 published entries.
Depth FAQ
How deep is Lake Napowan?
Lake Napowan is 18 feet deep at its deepest point, according to Wisconsin DNR records.
Is there a free depth map of Lake Napowan?
Yes. LakeList publishes a free interactive depth contour map of Lake Napowan at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.
Where does the Lake Napowan depth map come from?
The interactive depth contours are derived from LakeList depth model. Each contour set passes a visual QA review against the source document before it is published. The depths are a modeled estimate calibrated to the lake's documented maximum depth - not a survey, and 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
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