Area data
Stony Brook, NY — ZIP 11794
Population: 831 (Census ACS)
Home values & appreciation
- House Price Index
- 420.6 (+5.3% YoY)
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%
Natural hazards & flood risk
- Overall hazard risk
- Relatively High
- Top hazards
- coastalFlooding, iceStorm, lightning, winterWeather, coldWave
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
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 38
- Days with Good air quality
- 291
Amenities
- National parks within ~60 mi
- 3
- Nearest national park
- Fire Island National Seashore (25 mi)
- Nearest airport
- Talmage Field (5 mi)
- Nearest major airport
- Long Island MacArthur Airport (ISP) (26 mi)
- Hospitals nearby (~15 mi)
- 1
- Avg hospital rating
- 4.0 / 5
- EV charging stations (within 10 mi)
- 145
- Solar radiation rating
- Fair (4.0 kWh/m²/day)
Housing stock
- Mean commute to work
- 13 min
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
Area data compiled from public government, academic, and industry research feeds. Data sources →
Data last updated
Most recent source refresh: Aug 2026. See all data sources →