Cold Spring Harbor

County:: Suffolk County
County Seat:: No
Area (mi²):: 3.412
State:: New York

Cold Spring Harbor is a CDP located in Suffolk County, New York. Cold Spring Harbor has a 2025 population of 2,456. Cold Spring Harbor is currently declining at a rate of -6.62% annually and its population has decreased by -14.25% since the most recent census, which recorded a population of 2,864 in 2020.

The average household income in Cold Spring Harbor is $286,275 with a poverty rate of 1.6%.The median age in Cold Spring Harbor is 36.8 years: 39.1 years for males, and 36.6 years for females.

Demographics

The racial composition of Cold Spring Harbor includes 88.5% White, 4.13% Asian, and smaller percentages for other race, Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	2,764	88.5%
Two or more races	158	5.06%
Asian	129	4.13%
Other race	69	2.21%
Black or African American	3	0.1%

Cold Spring Harbor Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Cold Spring Harbor's average per capita income is $119,814. Household income levels show a median of $250,001. The poverty rate stands at 1.6%.

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
Households	$250,001	$286,275
Families	$250,001	$332,994
Married Families	$250,001	-
Non Families	$75,804	$92,760

$119,814

Average Income

$250,001

Median Household Income

1.6%

Poverty Rate