Seaford

County:: Nassau County
County Seat:: No
Area (mi²):: 2.61
State:: New York

Seaford is a CDP located in Nassau County, New York. Seaford has a 2025 population of 15,993. Seaford is currently growing at a rate of 0.29% annually and its population has increased by 5.54% since the most recent census, which recorded a population of 15,153 in 2020.

The average household income in Seaford is $186,636 with a poverty rate of 3.07%.The median age in Seaford is 40.4 years: 37.4 years for males, and 42.5 years for females.

Demographics

The racial composition of Seaford includes 87.17% White, 3.9% Asian, and smaller percentages for other race, Black or African American, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	13,846	87.17%
Asian	619	3.9%
Two or more races	577	3.63%
Other race	425	2.68%
Black or African American	381	2.4%
Native American	36	0.23%

Seaford Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Seaford's average per capita income is $85,802. Household income levels show a median of $156,488. The poverty rate stands at 3.07%.

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	$185,664	-
Families	$177,560	$202,858
Households	$156,488	$186,636
Non Families	$66,731	$87,499

$85,802

Average Income

$156,488

Median Household Income

3.07%

Poverty Rate