Kettle Moraine Lake
Fond du Lac County, Wisconsin209 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Kettle Moraine Lake. Here is what has been measured.
- Mesotrophic
- 2 aquatic invasives
- 30 ft max depth
Kettle Moraine Lake in Fond du Lac County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 11 ft visibility. Phosphorus: 16.2 µg/L. Maximum depth: 30 ft. Surface area: 209 acres.
Wisconsin DNR rates Panfish as abundant on Kettle Moraine Lake. DNR survey details →
Kettle Moraine Lake is a 209-acre mesotrophic lake in Fond du Lac County, Wisconsin with a maximum depth of 30 feet. Overall water quality is improving over recent sampling years. The lake supports 4 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Compared to the 8 other monitored lakes in Fond du Lac County, Kettle Moraine Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-27. Methodology: how these readings are compared.
Kettle Moraine Lake covers about 210 acres in Fond du Lac County. If you are planning to stay, you can search lake houses and cabins around Kettle Moraine Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.
What Kettle Moraine Lake is good for
From access and monitoring records, not editorial picks.
- Clear water11 ft of visibility
- Fishing4 species recorded
- Deep water30 ft surveyed max depth
Swimming conditions
Readings onlyLow algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Kettle Moraine 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 Kettle Moraine Lake
These are the measurements Wisconsin DNR publishes for Kettle Moraine Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 11 ft. Phosphorus 16.2 µg/L. TSI 43.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 11ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 16.2µg/L | Good GoodFairPoor |
| 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. | 43 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Kettle Moraine Lake
Answers come straight from the public measurements and survey records on this page.
Wisconsin DNR rates Panfish as abundant on Kettle Moraine Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Kettle Moraine Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. 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. Monitored by volunteers since 2006. 9 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
Lake Details
Max depth
30 ft
Surface area
209 acres
Lake Size & Watershed
Watershed (drainage) area
14 sq mi
HydroLAKES / HydroSHEDS
Shoreline
2.9 mi
HydroLAKES / HydroSHEDS
Elevation
1,017 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Kettle Moraine Lake
Compare lakeside cabins, hotels, and vacation rentals near Kettle Moraine Lake in Fond du Lac 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 Kettle Moraine Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
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Fish Species
Click a species to see every lake where it is documented.
Fishing Kettle Moraine Lake
- → Kettle Moraine Lake fishing: DNR survey catch rates, species & stocking
- → Kettle Moraine Lake fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Kettle Moraine Lake fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Kettle Moraine Lake? (mercury & PFAS guide)
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 Trend: Improving
Based on 6 years of monitoring (2020–2026).
Water clarity
Stable6 years
Phosphorus
Improving-0.69 µg/L/yr5 years
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Kettle Moraine Lake under Clean Water Act (NPDES) discharge permits.
- Second Look Holsteins LlcOsceola, Town Of · 3.7 mi away · NPDES WI0062987
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 Fond du Lac County
Frequently asked questions about Kettle Moraine Lake
Where is Kettle Moraine Lake?
- Kettle Moraine Lake is a lake in Fond du Lac County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Kettle Moraine Lake?
- Kettle Moraine Lake in Fond du Lac County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 11 ft visibility. Phosphorus: 16.2 µg/L. Maximum depth: 30 ft. Surface area: 209 acres.
Is Kettle Moraine Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Kettle Moraine Lake?
- Kettle Moraine Lake has a maximum depth of 30 feet. The lake covers 209 acres.
What fish are in Kettle Moraine Lake?
- Fish species found in Kettle Moraine Lake include Panfish, Largemouth Bass, Northern Pike, Walleye. Kettle Moraine Lake is located in Fond du Lac County, Wisconsin.
What did the DNR fisheries survey find at Kettle Moraine Lake?
- Wisconsin DNR rates Panfish as abundant on Kettle Moraine Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Kettle Moraine Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Explore Kettle Moraine Lake across LakeQuality
Depth, room, public access, and the state wake-sport rules
Fish species and the cleanest lakes across Wisconsin
Fish species and best lakes in Fond du Lac County
Species activity outlook by water temperature and season
Where to stay at Wisconsin's top lakes, each with its readings
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Where this data comes from
56 measurements from 1 monitoring station, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX56 samples · 2020–2026
Analytical methods
- Phosphorus by Colorimetry
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)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes