Skip to main content
LakeQuality

South Walnut Lake

Faribault County, Minnesota340 acresView mapDirections

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

Max depth
3.3 ft
Bathymetric survey
Area
340 acres
Surface area
Shoreline
3.1 mi
Measured length
  • 3 ft max depth

South Walnut Lake in Faribault County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 3.3 ft. Surface area: 340 acres.

Loading map…

South Walnut Lake is a 340-acre lake in Faribault County, Minnesota with a maximum depth of 3 feet.

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

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether South Walnut 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.

Compare swimming lakes near Mankato →

Get alerts for South Walnut Lake →

Water quality measurements for South Walnut Lake

These are the measurements Minnesota PCA publishes for South Walnut 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 South Walnut Lake

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

Lake Details

Max depth

3.3 ft

Surface area

340 acres

Shoreline

3.1 mi

Stays via Stay22

Stays near South Walnut Lake

Compare lakeside cabins, hotels, and vacation rentals near South Walnut Lake in Faribault 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 South Walnut Lake

Prices for Oct 16–18, 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 Minnesota’s top lakes →

Follow South Walnut Lake’s readings

Email me when new measurements post for this lake. Updates stay free.


Or email

Fishing South Walnut Lake

Nearby Lakes in Faribault County

Frequently asked questions about South Walnut Lake

Where is South Walnut Lake?

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

What is the water quality of South Walnut Lake?

South Walnut Lake in Faribault County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 3.3 ft. Surface area: 340 acres.

Measurements on this page ↑

Is South Walnut Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

How deep is South Walnut Lake?

South Walnut Lake has a maximum depth of 3.3 feet. The lake covers 340 acres.

State Parks Near South Walnut Lake

Where this data comes from

Measurements for South Walnut Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.

Other records on this page

Lake details from Minnesota DNR LakeFinder