Unified School District · NY
Shelter Island Union Free School District
Shelter Island Union Free School District is a unified school district in New York with a community population of 3,355. The median household income is $133,967 and the median age is 50.0.
3,355
Population
275
People / sq mi
$133,967
Median Income
50.0
Median Age
Shelter Island Union Free School District covers 12 sq mi of land at 275.1 people per square mile.
Race & Ethnicity
| White | 70.4% |
| Black or African American | 1.4% |
| Asian | 59.5% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$133,967
Median Household Income
$65,263
Per Capita Income
4.2%
Poverty Rate
4.3%
Unemployment
Housing
$1,104,300
Median Home Value
-
Median Rent
94.7%
Homeownership
Education Attainment
88.5%
High School+
63.0%
Bachelor's+
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Frequently Asked Questions
Shelter Island Union Free School District serves a community with a population of 3,355 according to the latest Census ACS 5-Year estimates. This unified school district is located in New York.
The median household income in Shelter Island Union Free School District is $133,967, with a per capita income of $65,263. The poverty rate is 4.2%.
Shelter Island Union Free School District is 70.4% White, 1.4% Black or African American, 59.5% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Shelter Island Union Free School District, 88.5% of adults have a high school diploma or higher, and 63.0% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Shelter Island Union Free School District is $1,104,300, with a median rent of -. The homeownership rate is 94.7%.
More from New York
Data for Shelter Island 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: 3626640).
this entity is one of the data points covered by this site’s U.S. population demographics dataset. The detail above comes directly from the U.S. Census Bureau ACS and decennial files; the context that follows situates the headline numbers against the broader distribution across U.S. states, metros, cities, and ZIPs.
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.