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Emma Lake
Enhanced dataInteractive depth contours
Emma LakeOneida 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 17-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 Emma Lake.
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Fishing forecast
Best windows for Emma 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
Emma 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.
DNR water check
Water quality quick take
From Wisconsin DNR / Citizen Lake Monitoring readings at Emma Lake - Deep Hole.
Sampled Sep 2025Volunteer monitoring since 1993
Somewhat hazy water — summer clarity of 7.4 ft is lower than most monitored Wisconsin lakes.
Based on July–August 2025 averages across 5 volunteer readings.51Eutrophic5-yr summer TSI
Nutrient-rich, greener water — more algae and plant growth, common in shallower lakes.
Water claritySecchi disk depth
7.4 ftJul–Aug 2025 avg (5 readings)
Slight hazeImproving — up ~20% vs earlier years
Clearer than 34% of 596 monitored Wisconsin lakes with current readings.
No recent algae readings — last measured 2007. No recent nutrient readings — last measured 2007.
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 | 7.4 ft (5) | — | — |
| 2024 | 5.5 ft (5) | — | — |
| 2023 | 6.4 ft (6) | — | — |
| 2022 | 6.3 ft (5) | — | — |
| 2021 | 4.9 ft (6) | — | — |
| 2020 | 4.9 ft (12) | — | — |
| 2016 | 3.5 ft (1) | — | — |
| 2011 | 7.8 ft (5) | — | — |
| 2007 | — | 5.0 µg/L (1) | 13.0 µg/L (1) |
| 2006 | 8.9 ft (5) | — | — |
Latest individual samples: Secchi 6.5 ft (2025-09-28), chlorophyll-a 5 µg/L (2007-08-28), and total phosphorus 13 µg/L (2007-08-28).
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.
Emma Lake - Deep HoleStation 443094 · TSI based on Secchi
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
Emma Lake depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Emma 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 983500 · 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 2012 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 contextEmma Lake (WBIC 983500) only
Human-reviewed catch, CPUE, mark-recapture, length and size-structure metrics for exact Emma Lake.
- Historical survey snapshot; not current regulations or navigation guidance.
- Stocking histories, regulations, creel/angler-use metrics, recommendations, comparison-water values and unsupported chart-only values were excluded.
Black Crappie
27 percent2012 length 9in plus share · p. 9
Largemouth Bass
124 fish2012 catch count · p. 59 fish2012 recapture count · p. 521 fish2012 juvenile count · p. 51 fish/acre2012 population density lower · p. 5
Muskellunge
31 fish2012 catch count · p. 65 fish2012 recapture count · p. 63 fish2012 immature count · p. 628.4 inches2012 min adult length · p. 6
Northern Pike
123 fish2012 catch count · p. 65 fish2012 recapture count · p. 61 fish2012 immature count · p. 620.5 inches2012 mean length · p. 6
Smallmouth Bass
36 fish2012 catch count · p. 53 fish2012 recapture count · p. 513.3 inches2012 mean adult length · p. 519.3 inches2012 max length · p. 5
Walleye
65 fish2012 catch count · p. 35 nights2012 netting nights · p. 312 fish2012 recapture count · p. 32.1 fish/net-night2012 fyke net cpue · p. 3
Comprehensive fisheries survey of Emma Lake, 2012Matched by exact wbic name county and lakelist uuid · WBICs 983500 · verified 2026-07-21Wisconsin DNR fisheries report; LakeList operator documented permission to leverage this public report with source attribution.
227surface acres
17max depth feet
1public access points
45.5895, -89.5016latitude, longitude
Access
Public access points
Boat launchEmma Lake Access45.58729, -89.49385Managed by TOWNSHIPTOWN OF CRESCENTRamp surface: GravelADA-accessible feature: NoVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
PanfishWalleyeLargemouth BassMuskySmallmouth Bass
Depth FAQ
How deep is Emma Lake?
Emma Lake is 17 feet deep at its deepest point, according to Wisconsin DNR records.
Is there a free depth map of Emma Lake?
Yes. LakeList publishes a free interactive depth contour map of Emma Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.
Where does the Emma Lake 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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