West Islip, New York Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of West Islip, New York is 26,559 as of the 2023 American Community Survey, making it the 58th-largest city in New York. The median household income is $171,045, the median home value is $592,700, and the median age is 39.8.
26,559
Population
4358
People / sq mi
$171,045
Median Income
$592,700
Median Home Value
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West Islip covers 6.1 sq mi of land at 4358 people per square mile.
About West Islip, NY
Homeownership is the standout figure in West Islip: 95.8% of homes are owner-occupied, higher than the national rate. With 26,559 residents, West Islip is a city in New York.
Earnings sit at the high end: a median household income of $171,045, above the US median of $78,538. Very few residents live in poverty — 1.1%, below the national 12.4%. The median home value is $592,700, with typical rent around $2,613.
About 50.1% of adults 25 and older have a bachelor’s degree, above the 35.0% national figure. Remote work is below the national 14.0% at 12.3%, and the average commute runs about 31 minutes each way.
The ownership rate anchors the housing story in West Islip, and tends to move with the age structure and home-value figures above.
Race & Ethnicity
| White | 84.3% |
| Black or African American | 1.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.9% |
| Two or More Races | 0.0% |
Economy & Income
$171,045
Median Household Income
$66,182
Per Capita Income
1.1%
Poverty Rate
2.6%
Unemployment Rate
Housing
$592,700
Median Home Value
$2,613
Median Rent
95.8%
Owner-Occupied
Education
96.3%
High School+
50.1%
Bachelor's+
Commute
5.5%
Drive Alone
75.0%
Public Transit
12.3%
Work From Home
30.9 min
Avg Commute
Community Profile
5.0%
Foreign Born
89.0%
Non-English at Home
3.1%
Veterans
6.4%
With Disability
97.2%
Health Insurance
98.3%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 31.3% |
| Information | 11.7% |
| Finance, Insurance & Real Estate | 9.9% |
| Retail Trade | 8.6% |
| Education, Health Care & Social Services | 6.7% |
| Public Administration | 5.7% |
| Construction | 5.6% |
| Manufacturing | 4.5% |
| Arts, Entertainment & Food Services | 3.1% |
| Transportation & Warehousing | 1.1% |
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Frequently Asked Questions
West Islip, New York has a population of 26,559 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 58th-largest city in New York.
The median household income in West Islip, New York is $171,045, with 1.1% of residents living below the federal poverty level.
The median home value in West Islip, New York is $592,700, with median monthly rent at $2,613 and a homeownership rate of 95.8%.
The median age in West Islip, New York is 39.8 years. The population is 52.5% male and 47.5% female.
Where to stay in West Islip
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.