Post Lake
Sully County, South Dakota35 acresView mapDirections
No nutrient or algae sampling on record from SD DANR for this lake.
- Limited data
Post Lake in Sully County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 35 acres.
Post Lake is a 35-acre lake in Sully County, South Dakota.
Source: EPA Water Quality Portal sampling records, SD DANR. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Post 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 Post Lake
These are the measurements SD DANR publishes for Post 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.
Ask about Post Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
35 acres
Shoreline
2.7 mi
No bathymetric survey has been published for Post Lake, so its depth is not documented here.
Stays via Stay22
Stays near Post Lake
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Fishing Post Lake
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Frequently asked questions about Post Lake
Where is Post Lake?
- Post Lake is a lake in Sully 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 Post Lake?
- Post Lake in Sully County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 35 acres.
Is Post Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Post Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.