Unified School District · NY
Central Islip Union Free School District
Central Islip Union Free School District is a unified school district in New York with a community population of 42,195. The median household income is $114,283 and the median age is 35.2.
42,195
Population
5163
People / sq mi
$114,283
Median Income
35.2
Median Age
Central Islip Union Free School District covers 8 sq mi of land at 5163.4 people per square mile.
Race & Ethnicity
| White | 22.4% |
| Black or African American | 0.0% |
| Asian | 16.6% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$114,283
Median Household Income
$34,559
Per Capita Income
6.0%
Poverty Rate
3.9%
Unemployment
Housing
$444,700
Median Home Value
$2,069
Median Rent
80.2%
Homeownership
Education Attainment
76.9%
High School+
20.5%
Bachelor's+
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State rankings
Frequently Asked Questions
Central Islip Union Free School District serves a community with a population of 42,195 according to the latest Census ACS 5-Year estimates. This unified school district is located in New York.
The median household income in Central Islip Union Free School District is $114,283, with a per capita income of $34,559. The poverty rate is 6.0%.
Central Islip Union Free School District is 22.4% White, 0.0% Black or African American, 16.6% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Central Islip Union Free School District, 76.9% of adults have a high school diploma or higher, and 20.5% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Central Islip Union Free School District is $444,700, with a median rent of $2,069. The homeownership rate is 80.2%.
More from New York
Data for Central Islip Union Free School District from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 3606870).
The this entity record above pulls directly from the U.S. Census Bureau ACS and decennial files. What follows is the per-entity context — how this entity sits in the broader U.S. population demographics distribution and which underlying factors drive the headline numbers.
The methodology behind every numeric value on this page is publicly documented on the the U.S. Census Bureau ACS and decennial files portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. states, metros, cities, and ZIPs. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: U.S. Census Bureau ACS, 2026.