City profile
Stony Brook, NY
Suffolk County · Population 12,868
Stony Brook is a town in Suffolk County, NY with about 12,868 residents and a typical home value near $623,000. It is 24 miles from Stamford, CT, which shapes its climate, healthcare access and amenities.
Climate
Climate type
Four seasons
Winter avg
31°F
Summer avg
75°F
Sunny days / yr
195
Home prices & cost of living
Median home price
$623,300
Typical monthly housing
$4,186
Cost of living (100 = U.S.)
138
Taxes
- Property tax
- 1.54%
- State income tax (top)
- 10.9%
- Social Security
- Not taxed
- Pensions
- Partly exempt
- Sales tax (state + avg. local)
- 8.53%
FEMA natural hazard risk
Relatively High · county score 97/100
Top hazards: Winter weather, Coastal flooding, Riverine flooding
Nearest major airport
39 mi to John F. Kennedy International Airport (JFK)
Political lean (2024 county vote)
Leans Republican · 45% Democratic / 55% Republican
Community
Population
12,868
Black population
2.5%
County
Suffolk County
Detailed crime figures are available for our 201 hand-researched cities.
2025–2026 trends
2026 market trends
- ▸More retirees are leaving NY than arriving, mostly over cost
- ▸Home prices are still rising in 2026 — good for long-term value, less room to negotiate
- ▸Climate/cost risks to check: winter storms, high taxes
Highlights
- About 12,868 residents
- Typical home value about $623,000
- 24 miles from Stamford, CT
Trade-offs
- Smaller community with fewer local amenities
- Scores for this place are estimated from Census data and the nearest major city
Figures are estimates from public sources (see How we match). Verify before making decisions.