Mud Lake is a lake in Dane County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.

How deep is Mud Lake?

Mud Lake has a maximum depth of 5 feet. The lake covers 51 acres.

Are there boat ramps on Mud Lake?

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

Can I fish at Mud Lake?

Mud 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.

Mud Lake

Dane County, Wisconsin51 acresView map Directions

No nutrient or algae sampling on record from Wisconsin DNR for this lake.

Max depth

5 ft

Bathymetric survey

Area

51 acres

Surface area

Shoreline

1.4 mi

Measured length

Impaired · Nutrients (phosphorus, nitrogen)
5 ft max depth
Public access

See the measurements Directions Where to stay

Mud Lake in Dane County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 5 ft. Surface area: 51 acres.

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Mud Lake is a 51-acre lake in Dane County, Wisconsin with a maximum depth of 5 feet. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water. Methodology: how these readings are compared.

What Mud Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Mud Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Mud 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.

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Water quality measurements for Mud Lake

These are the measurements Wisconsin DNR publishes for Mud Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Mud Lake

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

Lake Details

Max depth

5 ft

Surface area

51 acres

Shoreline

1.4 mi

Public access

Yes

Listed by Wisconsin DNR

Recreation & Access

Boat Landings

Yes

Public Access

Fish 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 Mud Lake

Compare lakeside cabins, hotels, and vacation rentals near Mud Lake in Dane 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 Mud Lake

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Follow Mud Lake’s readings

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Fishing Mud Lake

→ Mud Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Mud Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Nutrients (phosphorus, nitrogen)

Designated uses not supporting: Aquatic life, Recreation.

Source: EPA ATTAINS assessment unit WI10002703 · Official waterbody report

Nearby Lakes in Dane County

Fish Lake0.6 miView →Crystal Lake1.9 miView →Private Pond2.8 ft clear3.7 miView →Indian Lake7.2 miView →Indian Lake0.7 ft clear · Hypereutrophic—View →Brandenburg Lake7.5 miView →

Frequently asked questions about Mud Lake

Where is Mud Lake?: Mud Lake is a lake in Dane County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Mud Lake?: Mud Lake in Dane County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 5 ft. Surface area: 51 acres.
Is Mud Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Mud Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Mud Lake?: Mud Lake has a maximum depth of 5 feet. The lake covers 51 acres.
Are there boat ramps on Mud Lake?: Mud Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Fish Lake County Park. Public access is listed as yes.
Can I fish at Mud Lake?: Mud 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.