Wolf 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.

How deep is Wolf Lake?

Wolf Lake has a maximum depth of 47 feet. The lake covers 75 acres.

What fish are in Wolf Lake?

Fish species found in Wolf Lake include Panfish, Largemouth Bass, Northern Pike, Walleye. Wolf Lake is located in Fond du Lac County, Wisconsin.

Are there boat ramps on Wolf Lake?

Wolf Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Wolf Lake County Park. Public access is listed as yes.

Can I fish at Wolf Lake?

Wolf 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.

Wolf Lake

Fond du Lac County, Wisconsin75 acresView map Directions

Wisconsin DNR publishes the water-quality measurements for Wolf Lake. Here is what has been measured.

Clarity

5 ft

Typical for Wisconsin

Secchi · sampled 2026

Phosphorus

31 µg/L

More phosphorus than most

Measured by Wisconsin DNR

Max depth

47 ft

Bathymetric survey

Area

75 acres

Surface area

Type

Eutrophic

Trophic class

Trend

Worsening

7 years of samples

Eutrophic
Curly-Leaf Pondweed
47 ft max depth
Public access
Limited data

See the measurements Directions Where to stay

Wolf Lake in Fond du Lac County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 5 ft visibility. Phosphorus: 31 µg/L. Maximum depth: 47 ft. Surface area: 75 acres.

Wisconsin DNR lists Panfish as common on Wolf Lake. DNR survey details →

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Wolf Lake is a 75-acre productive, nutrient-rich eutrophic lake in Fond du Lac County, Wisconsin with a maximum depth of 47 feet. Overall water quality is declining over recent sampling years. The lake supports 4 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 1 public boat landing. Compared to the 8 other monitored lakes in Fond du Lac County, Wolf Lake ranks #2 for water quality.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-16. Methodology: how these readings are compared.

Wolf Lake covers about 75 acres in Fond du Lac County. It has one public boat landing. Vrbo is where to look for cabins and lake homes around Wolf Lake, and Booking.com and Expedia search hotels near the lake for your dates.

What Wolf Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp
Fishing4 species recorded
Deep water47 ft surveyed max depth

Swimming conditions

Readings only

Limited data

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 Wolf 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.

Compare swimming lakes near Oshkosh →

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Water quality measurements for Wolf Lake

These are the measurements Wisconsin DNR publishes for Wolf 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 5 ft. Phosphorus 31 µg/L. TSI 54.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	5ft	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	31µg/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.	54	Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Wolf Lake

Answers come straight from the public measurements and survey records on this page.

DNR fisheries survey

Wisconsin DNR lists Panfish as common on Wolf Lake.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Wolf Lake’s water-quality measurements separately, and the water-quality trend over 7 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. 5 stations on file (most recent sample 2025).

DNR Assessment

Fair · Deep Lowland lake

Trophic State Index 55 (eutrophic) · 5-year average

Fish Species (DNR-rated)

Panfish(Common)Largemouth Bass(Common)Walleye(Common)Northern Pike(Present)

Contour map (PDF) →Full WI DNR LakePage →Water quality stations →

Lake Details

Max depth

47 ft

Surface area

75 acres

Public access

Yes

Listed by Wisconsin DNR

Lake Size & Watershed

Watershed (drainage) area

1 sq mi

HydroLAKES / HydroSHEDS

Shoreline

1.9 mi

HydroLAKES / HydroSHEDS

Elevation

928 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Recreation & Access

Boat Landings

Yes

Public Access

Wolf Lake County ParkPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Stays via Stay22

Stays near Wolf Lake

Compare lakeside cabins, hotels, and vacation rentals near Wolf 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 Wolf Lake

Prices for Oct 9–11, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Wisconsin’s top lakes →

Follow Wolf Lake’s readings

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Fish Species

Panfish Largemouth Bass Northern Pike Walleye

Click a species to see every lake where it is documented.

Fishing Wolf 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.

Curly-Leaf PondweedEurasian Water-Milfoil

Water Quality Trend: Worsening

Based on 7 years of monitoring (2020–2026).

Water clarity
Worsening
4 years
Phosphorus
Worsening
+14 µg/L/yr3 years

See year-by-year chart →

Regulated Pollution Sources Nearby

2 EPA-permitted facilities operate within about 5 miles of Wolf Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.

St Cloud Village Utility Commission
Saint Cloud · 3.9 mi away · NPDES WI0026867
Recent violation
Lisowe Acres Llc
Calumet, Town Of · 4.6 mi away · NPDES WI0064840

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

Giltners LakeHypereutrophic—View →Mullet Lake—View →Spruce Lake—View →Long Lake9.1 ft clear · Mesotrophic—View →Mud Lake—View →Kettle Moraine Lake11 ft clear · Mesotrophic—View →

Frequently asked questions about Wolf Lake

Where is Wolf Lake?: Wolf 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 Wolf Lake?: Wolf Lake in Fond du Lac County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 5 ft visibility. Phosphorus: 31 µg/L. Maximum depth: 47 ft. Surface area: 75 acres.
Is Wolf Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Wolf Lake?: Wolf Lake has a maximum depth of 47 feet. The lake covers 75 acres.
What fish are in Wolf Lake?: Fish species found in Wolf Lake include Panfish, Largemouth Bass, Northern Pike, Walleye. Wolf Lake is located in Fond du Lac County, Wisconsin.
What did the DNR fisheries survey find at Wolf Lake?: Wisconsin DNR lists Panfish as common on Wolf Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Wolf Lake’s water-quality measurements separately, and the water-quality trend over 7 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Wolf Lake?: Wolf Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Wolf Lake County Park. Public access is listed as yes.
Can I fish at Wolf Lake?: Wolf 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.

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State Parks Near Wolf Lake

High Cliff State Park

State Park · 20.8 mi

Other Lakes in Wisconsin

Elkhart Lake

Sheboygan County · 10.5 ft

Crystal Lake

Sheboygan County · 20 ft

Shoe Lake

Manitowoc County · 7 ft

Little Elkhart Lake

Sheboygan County · 10 ft

Wilke Lake

Manitowoc County · 7 ft

Cedar Lake

Manitowoc County · 10.2 ft

Eutrophic Lakes in Wisconsin

Shoe Lake Bullhead Lake Long Lake Horseshoe Lake

Where this data comes from

60 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 ResourcesWIDNR_WQX60 samples · 2020–2026

Analytical methods

Total Phosphorus After Block Digestion
2130 B ~ Nephelometric Method

Monitoring station identifiers (1)

WIDNR_WQX-203058

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

Named boat-access points from the USGS National Boat Ramps inventory