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

How deep is Mud Lake?

Mud Lake has a maximum depth of 131.2 feet. The lake covers 135 acres.

Mud Lake

Stearns County, Minnesota135 acresView map Directions

No nutrient or algae sampling on record from Minnesota PCA for this lake.

Max depth

131.2 ft

Bathymetric survey

Area

135 acres

Surface area

Shoreline

4.1 mi

Measured length

Impaired · Mercury
131 ft max depth

See the measurements Directions Where to stay

Mud Lake in Stearns County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 131.2 ft. Surface area: 135 acres.

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Mud Lake is a 135-acre lake in Stearns County, Minnesota with a maximum depth of 131 feet.

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

What Mud Lake is good for

From access and monitoring records, not editorial picks.

Deep water131.2 ft surveyed max depth

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Mud Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.

Whether Mud Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR 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 Minnesota PCA 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

131.2 ft

Surface area

135 acres

Shoreline

4.1 mi

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Stays near Mud Lake

Compare lakeside cabins, hotels, and vacation rentals near Mud Lake in Stearns County, Minnesota — 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 4A).

Causes of impairment

Mercury

Designated uses not supporting: Fish consumption.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN73-0200-01 · Official waterbody report

Nearby Lakes in Stearns County

Krueger Lake1.6 miView →Koronis Lake6 ft clear · Eutrophic2.5 miView →Rice Lake3 ft clear · Eutrophic3.8 miView →Pirz Lake12 ft clear · Mesotrophic5 miView →Meyers Lake—View →Big Lake—View →

Frequently asked questions about Mud Lake

Where is Mud Lake?: Mud Lake is a lake in Stearns County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Mud Lake?: Mud Lake in Stearns County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 131.2 ft. Surface area: 135 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 4A) for mercury. Check local advisories before you swim.
How deep is Mud Lake?: Mud Lake has a maximum depth of 131.2 feet. The lake covers 135 acres.