Noise Levels in Nissequogue, NY | Find Quiet Neighborhoods With Our Sound Map
45 dBA
Average noise across Nissequogue
Quiet suburban street at night
48
Residents above the EPA 55 dBA threshold
3% of Nissequogue residents
60 dBA
Loudest residential point
Normal conversation an arm’s length away
This map shows modeled outdoor noise across Nissequogue at 100-meter resolution, combining road, aviation, and rail sources. Green areas measure below 45 dBA. Orange and red exceed the EPA's 55 dBA outdoor threshold linked to long-term health effects. Use the layer toggles to view each source on its own or all together.
What the numbers sound like
- 30 dBAWhisper
- 40 dBASoft rainfall
- 45 dBAQuiet suburban street at night
- 50 dBAQuiet office
- 55 dBAEPA outdoor threshold: light traffic 100 ft away
- 60 dBANormal conversation an arm's length away
- 65 dBABusy restaurant
- 70 dBAHighway traffic 50 ft away
- 80 dBACity bus interior
Population Above the EPA Outdoor Threshold
The EPA's 55 dBA outdoor reference level is a common benchmark for residential noise exposure, especially for activity interference, annoyance, and long-term community noise concerns. About 48 Nissequogue residents, or 3.1%, live above that level. By land area, 5.4% of Nissequogue is above 55 dBA.
94.6% below 55 dBA
5.4% above 55 dBA
See how noise in Nissequogue compares to similar-sized cities.
Noise by Part of Nissequogue
Average noise levels for Nissequogue residents, grouped by direction from the center of Nissequogue. Eastern Nissequogue carries the highest population-weighted average; Southern Nissequogue carries the lowest. Just 2% of residents in Southern Nissequogue live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in Eastern Nissequogue.
Eastern Nissequogue
46.0 dBA · Mostly quiet
Quiet suburban street at night
Southern Nissequogue
43.1 dBA · Quiet
Quiet suburban street at night
Western Nissequogue
45.4 dBA · Mostly quiet
Quiet suburban street at night
Eastern Nissequogue sounds about 22% louder than Southern Nissequogue to the human ear, a 2.9 dBA gap. Every 10 dBA roughly doubles perceived loudness. Within any of these directions, two homes a quarter mile apart can still differ by 10 or more dBA depending on how close they sit to a major highway.
How far back from Moriches Rd do you need to be?
Moriches Rd produces an estimated 57 dBA at its loudest centerline points. Noise drops logarithmically with distance, with the exact rate depending on what's between you and the road. Tree cover, walls, terrain, and pavement type all matter. At roughly a quarter mile back, traffic fades into the noise level of a soft rainfall.
At source
57 dBA
Normal conversation an arm’s length away
165 ft
43 dBA
Quiet suburban street at night
330 ft
35 dBA
Soft rainfall
660 ft
35 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 52% of Nissequogue sits under tree canopy (heavier than most cities) and roughly 3% is impervious surface like pavement and rooftops. Both are folded into the per-place decay rate above. Heavier canopy pulls noise down faster with distance; impervious surfaces slow the drop.
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Airport Noise
Long Island Macarthur (ISP) sits southeast of Nissequogue. The U.S. Department of Transportation models aviation noise around this airport from federal traffic data, and the model uses those federal measurements rather than synthetic predictions.
Blocks under the approach and departure paths carry combined road-plus-aviation noise, with some exceeding 55 dBA on the map's Overall layer. Blocks on the opposite side of Nissequogue, particularly to the northwest, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Nissequogue
The bar chart below shows the share of Nissequogue residents in each noise band. About 100% of residents live below the EPA's 55 dBA threshold, and roughly 0% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Nissequogue Compares
Nissequogue sits the lowest among the peer group. Below: how Nissequogue's average outdoor noise and share of residents above the EPA threshold compare with Head of the Harbor, Village of the Branch, East Setauket, and Huntington Bay.
Average noise level (dBA)
Nissequogue's 44.9 dBA pop-weighted average is the lowest among the peer group. New York as a whole averages 55.4 dBA and the U.S. averages 52.0 dBA. Both are lower than Nissequogue because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 3.1% of Nissequogue residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's fewer than any of its peer group. Measured by land area instead, 5.4% of Nissequogue's footprint sits above 55 dBA, against a New York average of 30.9% and a national average of 28.1%.
What This Means if You're Moving to Nissequogue
- Distance from highways matters more than the neighborhood name. Two homes in the same zip code can differ by 20 dBA if one sits 100 meters from Moriches Rd and the other 500 meters away. The model captures this at 100-meter resolution, so noise exposure changes block by block.
- Tree canopy can help reduce modeled noise exposure. Roughly 52% of Nissequogue is under tree cover (heavier than most cities), and the dominant land cover is deciduous forest. Both are measured from federal USDA Forest Service and USGS satellite imagery at 30-meter resolution. Streets with 60% or higher canopy show 3 to 5 dBA lower noise than comparable streets with bare ground or pavement, which is why the per-place decay rate above already accounts for it.
- Airport noise is directional. Long Island Macarthur's approach paths concentrate aviation noise to the southeast. Neighborhoods to the northwest of downtown show no measurable contribution from the airport.
