Stony Brook Flag

Stony Brook

County:
Suffolk County
County Seat:
No
Area (mi²):
5.823
State:
New York

Stony Brook is a CDP located in Suffolk County, New York. Stony Brook has a 2026 population of 12,616. Stony Brook is currently declining at a rate of -0.56% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median household income in Stony Brook is $174,872 with a poverty rate of 6.47%. The median age in Stony Brook is 44.9 years: 40.8 years for males, and 47.5 years for females. For every 100 females there are 106.2 males.

12.6K
Total Population
2,167
Density (mi²)
-71 -0.56%
Growth

Stony Brook Population

Stony Brook Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202612,616-71-0.56%
202512,687-70-0.55%

Median Age

Overall: 44.9 years
Female: 47.5 years
Male: 40.8 years

Stony Brook Adults

There are 10,378 adults, (2,867 of whom are seniors) in Stony Brook.

Sex Ratio

Female: 6,241 (48.5%)
Male: 6,627 (51.5%)

Demographics

The racial composition of Stony Brook includes 75.68% White, 15.12% Asian, and smaller percentages for Black or African American, other race, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White9,73975.68%
Asian1,94515.12%
Two or more races6895.35%
Black or African American3242.52%
Other race1661.29%
Native American50.04%
Race
Population ↓
Percentage (of total)
Two or more races5234.06%
White2602.02%
Other race1210.94%
Race
Population ↓
Percentage (of total)
White9,47973.66%
Asian1,94515.12%
Black or African American3242.52%
Two or more races1661.29%
Other race450.35%
Native American50.04%

Stony Brook Marital Status

Economics and Income Statistics

Stony Brook 's average per capita income is $97,128. Household income levels show a median of $174,872. The poverty rate stands at 6.47%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$213,289-
Families$201,865$235,718
Households$174,872$205,594
Non Families$92,375$103,318

$97,128

Average Income

$174,872

Median Household Income

6.47%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)