Mallard Lake
Corson County, South Dakota46 acresView mapDirections
No nutrient or algae sampling on record from SD DANR for this lake.
Mallard Lake in Corson County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 46 acres.
Mallard Lake is a 46-acre lake in Corson County, South Dakota.
Source: EPA Water Quality Portal sampling records, SD DANR. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Mallard Lake is safe to swim in today is a call for the South Dakota Department of Agriculture and Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Mallard Lake
These are the measurements SD DANR publishes for Mallard 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 Mallard Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
46 acres
Shoreline
3.1 mi
No bathymetric survey has been published for Mallard Lake, so its depth is not documented here.
Stays via Stay22
Stays near Mallard Lake
Compare lakeside cabins, hotels, and vacation rentals near Mallard Lake in Corson County, South Dakota — 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 Mallard 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 South Dakota’s top lakes →
Follow Mallard Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Mallard Lake
Nearby Lakes in Corson County
Frequently asked questions about Mallard Lake
Where is Mallard Lake?
- Mallard Lake is a lake in Corson County, South Dakota. Its water-quality measurements are published by SD DANR and shown on this page as reported.
What is the water quality of Mallard Lake?
- Mallard Lake in Corson County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 46 acres.
Is Mallard Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Mallard Lake across LakeQuality
More lakes in South Dakota
Other Lakes in South Dakota
Where this data comes from
Measurements for Mallard Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.