West Islip Flag

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. For every 100 females there are 110.5 males.

26.9K
Total Population
4,415
Density (mi²)
-96 -0.36%
Growth

West Islip Population

West Islip Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (84.3%)

Two or more races (10.46%)

Other race (2.19%)

Asian (1.78%)

Black or African American (1.21%)

Native American (0.06%)

Race
Population
Percentage (of total)
White22,38884.3%
Two or more races2,77810.46%
Other race5822.19%
Asian4731.78%
Black or African American3221.21%
Native American160.06%

West Islip Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)