Islip Terrace

County:: Suffolk County
County Seat:: No
Area (mi²):: 1.274
State:: New York

Islip Terrace is a CDP located in Suffolk County, New York. Islip Terrace has a 2025 population of 5,300. Islip Terrace is currently declining at a rate of -0.11% annually but its population has increased by 1.07% since the most recent census, which recorded a population of 5,244 in 2020.

The average household income in Islip Terrace is $159,113 with a poverty rate of 3.39%. The median age in Islip Terrace is 41.9 years: 39.9 years for males, and 43.2 years for females.

Demographics

The racial composition of Islip Terrace includes 82.5% White, 4.58% other race, and smaller percentages for Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	4,309	82.5%
Two or more races	552	10.57%
Other race	239	4.58%
Black or African American	96	1.84%
Asian	27	0.52%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Islip Terrace Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Islip Terrace's average per capita income is $68,609. Household income levels show a median of $155,741. The poverty rate stands at 3.39%.

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	$177,697	-
Non Families	$172,685	$175,457
Households	$155,741	$159,113
Families	$149,792	$149,459

$68,609

Average Income

$155,741

Median Household Income

3.39%

Poverty Rate