Islandia, New York Demographics & Population 2026
During the 2020–2024 ACS period, Islandia, New York had a total population of 3,600, the 451st largest village in New York, with a median household income of $116,313, which is 35% higher than the state average. The poverty rate is 7.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 35% above the state average — one of the wealthiest communities in New York.
- One of the most racially diverse communities in New York (diversity index: 77/100).
Islandia Quick Facts
How Islandia Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 3,581 | 3,600 | +0.5% |
| Median household income | $112,435 | $116,313 | +3.4% |
| Median home value | $451,700 | $477,400 | +5.7% |
How Islandia Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
This community is exceptionally diverse, with no single racial or ethnic group dominating the population.
State average: 65 | National average: 61
Education
Educational Attainment (Adults 25+)
Islandia Rankings in New York
Explore New York Rankings
Other Cities in Suffolk County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| West Babylon | 43,570 | $129,519 | 5.9% | $531,900 |
| Coram | 39,539 | $105,220 | 7.5% | $452,100 |
| Central Islip | 38,373 | $113,707 | 9.2% | $436,400 |
| Commack | 36,558 | $169,792 | 4.2% | $678,200 |
| Huntington Station | 32,601 | $135,477 | 7.2% | $578,000 |
| Centereach | 31,839 | $132,240 | 5.3% | $514,800 |
| Bay Shore | 31,683 | $105,618 | 10.2% | $492,200 |
| Shirley | 28,375 | $112,788 | 6.5% | $424,900 |
| Deer Park | 27,990 | $137,105 | 3.4% | $543,500 |
| Lindenhurst | 27,142 | $130,128 | 5.7% | $521,500 |
Cities Similar to Islandia
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| SUNY Oswego | 3,564 | N/A | N/A | 100.0% | 42.5% |
| Beaver Dam Lake | 3,627 | $120,755 | $425,200 | 41.8% | 1.3% |
| Marlboro | 3,679 | $119,318 | $412,800 | 50.5% | 2.9% |
| Vassar College | 3,529 | $121,469 | $415,600 | 87.0% | 32.4% |
| Highland Falls | 3,683 | $110,714 | $353,900 | 43.2% | 7.2% |
Population Overview
Islandia is a small community located in New York, within Suffolk County. The total population is 3,600. It ranks as the 451st most populous out of 1,289 Census-designated places in New York.
Age Demographics
The median age in Islandia is 43.3 years. This is 9% higher than the state median of 39.8 years. Only 14.4% of residents are under 18, indicating fewer families with children.
Economy, Income & Housing
The median household income in Islandia is $116,313. This is 35% higher than the state median of $85,974. It is also 44% higher than the national median of $80,734. The poverty rate stands at 7.7%. This is 45% lower than the state poverty rate of 14.0%. The unemployment rate is 5.5%. This is 13% lower than the state rate of 6.4%. The median home value is $477,400. Housing costs are 13% higher than the state median of $423,800. The home-value-to-income ratio is 4.1x. 96.0% of occupied housing units are owner-occupied. This homeownership rate is 77% higher than the state average of 54.4%.
Race & Ethnicity
Islandia is a highly diverse community where no single racial or ethnic group constitutes a majority of the population. White (non-Hispanic) residents account for 29.1%. The Hispanic or Latino population is significantly higher than the state average (32.0% vs 19.8%).
Education
32.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 19% lower than the state rate of 40.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 89.3%.
Data Sources & Methodology
All demographic data for Islandia, New York is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,289 Census-designated places in New York. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Islandia, New York?
Islandia, New York has a population of 3,600 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Islandia, NY?
The median household income in Islandia is $116,313, which is 44% higher than the national median of $80,734.
What is the poverty rate in Islandia, NY?
The poverty rate in Islandia is 7.7%. This means approximately 273 residents live below the federal poverty line.
What is the racial makeup of Islandia, New York?
Islandia's population is 29.1% White, 17.5% Black, 32.0% Hispanic/Latino, and 6.3% Asian.
What is the median home value in Islandia, NY?
The median home value in Islandia is $477,400. The home-value-to-income ratio is 4.1x.
How educated is Islandia, New York?
32.5% of adults (25+) in Islandia hold a bachelor's degree or higher, and 12.8% hold a graduate or professional degree.