Madeline Lake
Oneida County, Wisconsin172 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Madeline Lake. Here is what has been measured.
- 2 aquatic invasives
- 17 ft max depth
- Public access
- Limited data
Madeline Lake in Oneida County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 4 ft visibility. Maximum depth: 17 ft. Surface area: 172 acres.
Wisconsin DNR rates Panfish as abundant on Madeline Lake. DNR survey details →
Madeline Lake is a 172-acre lake in Oneida County, Wisconsin with a maximum depth of 17 feet. Overall water quality is declining over recent sampling years. The lake supports 5 documented fish species including Musky, Panfish, and Largemouth Bass. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-09-09. Methodology: how these readings are compared.
Madeline Lake covers about 170 acres in Oneida County. It has one public boat landing. If you are planning to stay, you can search lake houses and cabins around Madeline Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.
What Madeline Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Fishing5 species recorded
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Madeline Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Madeline Lake
These are the measurements Wisconsin DNR publishes for Madeline Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 4 ft. TSI 57.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 57 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Madeline Lake
Answers come straight from the public measurements and survey records on this page.
Wisconsin DNR rates Panfish as abundant on Madeline Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Madeline Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2024).
Fish Species (DNR-rated)
Lake Details
Max depth
17 ft
Surface area
172 acres
Public access
Yes
Listed by Wisconsin DNR
Recreation & Access
- Arthur A. Oehmcke Fish HatcheryPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Madeline Lake
Compare lakeside cabins, hotels, and vacation rentals near Madeline Lake in Oneida County, Wisconsin — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Madeline Lake
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Follow Madeline Lake’s readings
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Fish Species
Click a species to see every lake where it is documented.
Fishing Madeline Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water quality readings over time
2 seasons of samples on record (2023–2024). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening2 years
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Madeline Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Wi Dnr Art Oehmcke State Fish HatcheryWoodruff · 0.6 mi away · NPDES WI0058271Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Oneida County
Frequently asked questions about Madeline Lake
Where is Madeline Lake?
- Madeline Lake is a lake in Oneida County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Madeline Lake?
- Madeline Lake in Oneida County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 4 ft visibility. Maximum depth: 17 ft. Surface area: 172 acres.
Is Madeline Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Madeline Lake?
- Madeline Lake has a maximum depth of 17 feet. The lake covers 172 acres.
What fish are in Madeline Lake?
- Fish species found in Madeline Lake include Musky, Panfish, Largemouth Bass, Northern Pike, Walleye. Madeline Lake is located in Oneida County, Wisconsin.
What did the DNR fisheries survey find at Madeline Lake?
- Wisconsin DNR rates Panfish as abundant on Madeline Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Madeline Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Madeline Lake?
- Madeline Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Arthur A. Oehmcke Fish Hatchery. Public access is listed as yes.
Can I fish at Madeline Lake?
- Madeline Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Wisconsin's fish and wildlife agency, so check its current regulations before you go.
Explore Madeline Lake across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2023–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX2 samples · 2023–2024
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory