Grass Lake
Codington County, South Dakota1,610 acresView mapDirections
No nutrient or algae sampling on record from SD DANR for this lake.
- Public access
Grass Lake in Codington County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 1610 acres.
Grass Lake is a 1,610-acre lake in Codington County, South Dakota. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, SD DANR. Methodology: how these readings are compared.
What Grass Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Big water1,610 acres
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Grass 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 Grass Lake
These are the measurements SD DANR publishes for Grass 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 Grass Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
1,610 acres
Shoreline
11 mi
Public access
Yes
Listed by SD DANR
No bathymetric survey has been published for Grass Lake, so its depth is not documented here.
Recreation & Access
- Grass Public Water AccessPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Grass Lake
Compare lakeside cabins, hotels, and vacation rentals near Grass Lake 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.
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Fishing Grass Lake
Nearby Lakes in Codington County
Frequently asked questions about Grass Lake
Where is Grass Lake?
- Grass Lake 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 Grass Lake?
- Grass Lake in Codington County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 1610 acres.
Is Grass Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Grass Lake?
- Grass Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Grass Public Water Access. Public access is listed as yes.
Can I fish at Grass Lake?
- Grass 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 South Dakota's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
Measurements for Grass Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory