Where is Hempstead Lake?

Hempstead Lake is a lake in Nassau County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.

Hempstead Lake

Nassau County, New York132 acresView map Directions

No nutrient or algae sampling on record from NY DEC for this lake.

Area

132 acres

Surface area

Impaired · Nutrients (phosphorus, nitrogen)

See the measurements Directions Where to stay

Hempstead Lake in Nassau County, New York has water-quality measurements published by NY DEC, shown here as reported. Surface area: 132 acres.

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Hempstead Lake is a 132-acre lake in Nassau County, New York.

Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Hempstead Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Hempstead Lake is safe to swim in today is a call for the New York Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Hempstead Lake

These are the measurements NY DEC publishes for Hempstead 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 Hempstead Lake

Answers come straight from the public measurements and survey records on this page.

→ Hempstead Lake water level: the live USGS gauge reading

Lake Details

Surface area

132 acres

No bathymetric survey has been published for Hempstead Lake, so its depth is not documented here.

Stays via Stay22

Stays near Hempstead Lake

Compare lakeside cabins, hotels, and vacation rentals near Hempstead Lake in Nassau County, New York — 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 Hempstead Lake

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Fishing Hempstead Lake

→ Hempstead Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Hempstead Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

Nutrients (phosphorus, nitrogen)

Designated uses not supporting: Recreation.

Source: EPA ATTAINS assessment unit NY1701-0015 · Official waterbody report

Nearby Lakes in Nassau County

Smith Pond1.5 miView →Lake Success6.7 miView →Seaman Pond6.7 miView →Massapequa Lake9.1 miView →Gugenheim Pond—View →Dosoris Pond—View →

Frequently asked questions about Hempstead Lake

Where is Hempstead Lake?: Hempstead Lake is a lake in Nassau County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.
What is the water quality of Hempstead Lake?: Hempstead Lake in Nassau County, New York has water-quality measurements published by NY DEC, shown here as reported. Surface area: 132 acres.
Is Hempstead Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Hempstead Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.