Long Lake
Lake County, South Dakota192 acresView mapDirections
No nutrient or algae sampling on record from SD DANR for this lake.
- Public access
Long Lake in Lake County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 192 acres.
Long Lake is a 192-acre lake in Lake 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 Long Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Long 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 Long Lake
These are the measurements SD DANR publishes for Long 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 Long Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
192 acres
Shoreline
4.8 mi
Public access
Yes
Listed by SD DANR
No bathymetric survey has been published for Long Lake, so its depth is not documented here.
Recreation & Access
- Long 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 Long Lake
Compare lakeside cabins, hotels, and vacation rentals near Long Lake in Lake 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 Long Lake
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Fishing Long Lake
Nearby Lakes in Lake County
Frequently asked questions about Long Lake
Where is Long Lake?
- Long Lake is a lake in Lake 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 Long Lake?
- Long Lake in Lake County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 192 acres.
Is Long 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 Long Lake?
- Long Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Long Public Water Access. Public access is listed as yes.
Can I fish at Long Lake?
- Long 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 Long 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