Where is Peconic Lake?

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

Peconic Lake

Suffolk County, New York105 acresView map Directions

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

Area

105 acres

Surface area

Shoreline

3.6 mi

Measured length

Impaired · Habitat alterations

See the measurements Directions Where to stay

Peconic Lake in Suffolk County, New York has water-quality measurements published by NY DEC, shown here as reported. Surface area: 105 acres.

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Peconic Lake is a 105-acre lake in Suffolk County, New York.

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

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Peconic Lake is listed impaired under Clean Water Act §303(d) (IR 4C) for habitat alterations. Check local advisories before you swim.

Whether Peconic 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 Peconic Lake

These are the measurements NY DEC publishes for Peconic 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 Peconic Lake

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

Lake Details

Surface area

105 acres

Shoreline

3.6 mi

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

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Stays near Peconic Lake

Compare lakeside cabins, hotels, and vacation rentals near Peconic Lake in Suffolk 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 Peconic Lake

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Fishing Peconic Lake

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

EPA Impairment Status

Peconic Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).

Causes of impairment

Habitat alterations

Source: EPA ATTAINS assessment unit NY1701-0262 · Official waterbody report

Nearby Lakes in Suffolk County

Wildwood Lake2.7 miView →Swan Pond3.9 miView →Deep Pond6 miView →Lake Panamoka6.8 miView →Red Creek Pond8.8 miView →Laurel Lake9.8 miView →

Frequently asked questions about Peconic Lake

Where is Peconic Lake?: Peconic Lake is a lake in Suffolk 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 Peconic Lake?: Peconic Lake in Suffolk County, New York has water-quality measurements published by NY DEC, shown here as reported. Surface area: 105 acres.
Is Peconic Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Peconic Lake is listed impaired under Clean Water Act §303(d) (IR 4C) for habitat alterations. Check local advisories before you swim.