Sumner Slough
Codington County, South Dakota682 acresView mapDirections
No nutrient or algae sampling on record from SD DANR for this lake.
Sumner Slough in Codington County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 682 acres.
Sumner Slough is a 682-acre lake in Codington 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 Sumner Slough 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 Sumner Slough
These are the measurements SD DANR publishes for Sumner Slough, 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 Sumner Slough
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
682 acres
No bathymetric survey has been published for Sumner Slough, so its depth is not documented here.
Stays via Stay22
Stays near Sumner Slough
Compare lakeside cabins, hotels, and vacation rentals near Sumner Slough in Codington 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 Sumner Slough
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 Sumner Slough’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Sumner Slough
Nearby Lakes in Codington County
Frequently asked questions about Sumner Slough
Where is Sumner Slough?
- Sumner Slough is a lake in Codington 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 Sumner Slough?
- Sumner Slough in Codington County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 682 acres.
Is Sumner Slough safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Sumner Slough across LakeQuality
More lakes in South Dakota
Other Lakes in South Dakota
Where this data comes from
Measurements for Sumner Slough come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.