West Islip

County:: Suffolk County
County Seat:: No
Area (mi²):: 6.094
State:: New York

West Islip is a CDP located in Suffolk County, New York. West Islip has a 2025 population of 26,906. West Islip is currently declining at a rate of -0.36% annually but its population has increased by 1.1% since the most recent census, which recorded a population of 26,614 in 2020.

The average household income in West Islip is $200,108 with a poverty rate of 2.66%. The median age in West Islip is 39.8 years: 36.4 years for males, and 42.5 years for females.

Demographics

The racial composition of West Islip includes 84.3% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	22,388	84.3%
Two or more races	2,778	10.46%
Other race	582	2.19%
Asian	473	1.78%
Black or African American	322	1.21%
Native American	16	0.06%
Native Hawaiian or Pacific Islander	0	0%

West Islip Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

West Islip's average per capita income is $82,446. Household income levels show a median of $171,045. The poverty rate stands at 2.66%.

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	$193,056	-
Families	$184,367	$213,556
Households	$171,045	$200,108
Non Families	$85,909	$124,660

$82,446

Average Income

$171,045

Median Household Income

2.66%

Poverty Rate