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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

Westchester County Lake Quality

New York, 39 lakes, measured by NY DEC

The county-level average smooths over real differences — a single agricultural watershed near the southwest corner can pull the average down even if the rest of the county runs clean. The 39 monitored lakes in Westchester County carry whatever clarity, phosphorus, and chlorophyll-a readings NY DEC has published, shown as reported.

Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.

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Where to stay near Westchester County

Top-rated places to stay near Westchester County

Prices for Oct 23–25, 4 adults. Change dates on the map below.

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Quick Answers for Westchester County

Cleanest lakes in Westchester County →Cleanest lakes in New York →Best swimming lakes in New York →

Planning a trip? Check special fishing regulations for Lake Lincolndale — or check the official New York fishing regulations.

All Lakes in Westchester County

39 lakes · 0 ranked on readings, 39 without enough sampling0 lakes ranked on readings · 39 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicMax DepthAccess
Lake LincolndaleWestchester2.8 ftNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Oscaleta LakeWestchester8.4 ftNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake MoheganWestchester3.4 ftNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Howlands LakeWestchester3.1 ftNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake RippowamWestchester5.4 ftNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake WaccabucWestchester5.7 ftNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Oceola LakeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Titicus ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake KitchawanWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Browns ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Siscowit ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Playland LakeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Silver LakeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samples10.5 ftNot recorded
Grassy Sprain ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Tarrytown ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Rye LakeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Kensico ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samples120 ftNot recorded
Pocantico LakeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Teatown LakeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samples10.8 ftNot recorded
Wampus Lake ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samples24.9 ftNot recorded
Byram Lake ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Blue Heron LakeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samples15.1 ftNot recorded
Trinity LakeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cross River ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cross River ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Truesdale LakeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samples9.5 ftNot recorded
Lake KatonahWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samples5.6 ftNot recorded
Muscoot ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Amawalk ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samples77 ftNot recorded
Crom PondWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mohansic LakeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samples21.3 ftNot recorded
New Croton ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Colabaugh PondWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dickerson PondWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake MeahaghWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hillview ReservoirWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Reservoir Number OneWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samples30 ftNot recorded
Reservoir Number ThreeWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Van Amringe MillpondWestchesterNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.

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Other Counties in New York

Seneca County

4 lakes

Hamilton County

198 lakes

Herkimer County

110 lakes

Essex County

129 lakes

Lewis County

33 lakes

Franklin County

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Browse every New York lake, or the full directory of lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..

Source: the New York Department of Environmental Conservation. See data sources.