North Sea

County:: Suffolk County
County Seat:: No
Area (mi²):: 11.054
State:: New York

North Sea is a CDP located in Suffolk County, New York. North Sea has a 2025 population of 6,453. North Sea is currently growing at a rate of 2.1% annually and its population has increased by 22.61% since the most recent census, which recorded a population of 5,263 in 2020.

The average household income in North Sea is $269,892 with a poverty rate of 4.43%. The median age in North Sea is 44 years: 40.5 years for males, and 50.9 years for females.

Demographics

The racial composition of North Sea includes 64.4% White, 13.29% Black or African American, 5.75% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	4,197	64.4%
Two or more races	957	14.68%
Black or African American	866	13.29%
Other race	375	5.75%
Asian	122	1.87%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

North Sea Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

North Sea's average per capita income is $74,797. Household income levels show a median of $155,139. The poverty rate stands at 4.43%.

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	$219,306	-
Families	$211,515	$325,775
Households	$155,139	$269,892
Non Families	$130,089	$135,718

$74,797

Average Income

$155,139

Median Household Income

4.43%

Poverty Rate