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Area data

Stony Brook, NY — ZIP 11794

Population: 831 (Census ACS)

FEMA's National Risk Index rates the county's overall natural-hazard risk Relatively High, with coastalflooding, icestorm, lightning the top-rated hazards. Cost of living is 7.9% above the US average (BEA, metro/state-level).

Backed by 25+ public sourcesFEMA · U.S. Census · NOAA · Dept. of Education · EPA · and more

Home values & appreciation

House Price Index (state)
420.6 (+5.3% YoY)

Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)

Affordability

Cost of living index (Above Average)
107.9 (100 = US avg)
Electricity rate (state-level)
26.4¢/kWh
Natural gas rate (state-level)
$17.60/MCF
30-year mortgage rate (national)
6.66%
15-year mortgage rate (national)
6.00%

Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)

Natural hazards & flood risk

Overall hazard risk (county)
Relatively High
Top hazards (county)
coastalFlooding, iceStorm, lightning, winterWeather, coldWave
Notable hazard ratings (county)
coastalFlooding: Very High · coldWave: Relatively High · earthquake: Relatively Moderate · hail: Relatively Low · heatWave: Relatively Moderate · hurricane: Relatively High
Wildfire risk to homes (county)
Higher than 35% of US counties
Buildings in wildfire direct-exposure zone
31.3%
Radon potential (county)
Low radon potential — EPA Zone 3 of 3
EPA Superfund (NPL) sites within 5 mi
None
Nearest Superfund site
Brookhaven National Laboratory (USDOE) (12.9 mi)
EPA recommends radon testing for every home regardless of zone.

Sources: FEMA National Risk Index (county-level) · FEMA flood data (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL

Climate (30-year normals)

Average annual temperature
53.0°F
Average high
62.0°F
Average low
45.0°F
Annual precipitation
45.2 in

Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)

Air quality

Air quality rating
Good
Median AQI (annual)
38
Days with Good air quality
291
Days with Moderate air quality
69
Highest AQI recorded (year)
133

Source: EPA air quality data (nearest monitoring station, annual)

Amenities

National parks within ~60 mi
3
Nearest national park
Fire Island National Seashore (25 mi)
National parks include
Fire Island National Seashore, Sagamore Hill National Historic Site, Weir Farm National Historical Park
Airports within 30 mi
14
Nearest airport
Talmage Field (5 mi)
Nearest major airport
Long Island MacArthur Airport (ISP) (26 mi)
Hospitals nearby (~15 mi)
1
Hospitals include
SUNY/STONY BROOK UNIVERSITY HOSPITAL
Avg hospital rating (CMS)
4.0 / 5
Best hospital rating nearby (CMS)
4.0 / 5
EV charging stations (within 10 mi)
145
Solar radiation rating
Fair (4.0 kWh/m²/day)

Sources: National Park Service · FAA airport data · CMS hospital data · DOE/NREL (proximity-based)

Housing stock

Mean commute to work
13 min

Source: Census ACS 5-year estimates (ZIP-level)

Employment & development

Total county employment
559,257
Average weekly wage
$1,369
Top industries (by employment)
Health Care, Accommodation & Food, Construction
Annual residential building permits (county)
838

Sources: BLS QCEW (county-level) · Census Building Permits (county-level)

Area data compiled from public government, academic, and industry research feeds. Data sources →

Common questions

What is the natural-hazard risk in ZIP 11794?
Overall risk: Relatively High (FEMA NRI, county-level). Top hazards: coastalFlooding, iceStorm, lightning, winterWeather, coldWave.
What is the wildfire risk in ZIP 11794?
Risk to homes is higher than 35% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in ZIP 11794?
Low radon potential — EPA Zone 3 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near ZIP 11794?
No current or proposed National Priorities List sites within 5 miles (EPA).
What is the air quality in ZIP 11794?
Good. Median AQI: 38. (EPA AQI).
What is the cost of living in ZIP 11794?
Regional Price Parity: 107.9 (100 = US average) (Above Average) (BEA RPP, metro/state-level).

Nearby ZIP codes

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Data last updated

Most recent source refresh: Sep 2026. See all data sources →

Data compiled by REAIGENT7 — AI listing platform for real estate agents