Elementary School District · IL
Union School District 81
Union School District 81 is a elementary school district in Illinois with a community population of 2,020. The median household income is $108,125 and the median age is 41.5.
2,020
Population
341
People / sq mi
$108,125
Median Income
41.5
Median Age
Union School District 81 covers 6 sq mi of land at 341.3 people per square mile.
Race & Ethnicity
| White | 45.6% |
| Black or African American | 0.0% |
| Asian | 37.3% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$108,125
Median Household Income
$32,691
Per Capita Income
3.8%
Poverty Rate
3.1%
Unemployment
Housing
$215,000
Median Home Value
$1,375
Median Rent
88.0%
Homeownership
Education Attainment
82.4%
High School+
12.1%
Bachelor's+
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Frequently Asked Questions
Union School District 81 serves a community with a population of 2,020 according to the latest Census ACS 5-Year estimates. This elementary school district is located in Illinois.
The median household income in Union School District 81 is $108,125, with a per capita income of $32,691. The poverty rate is 3.8%.
Union School District 81 is 45.6% White, 0.0% Black or African American, 37.3% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Union School District 81, 82.4% of adults have a high school diploma or higher, and 12.1% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Union School District 81 is $215,000, with a median rent of $1,375. The homeownership rate is 88.0%.
More from Illinois
Data for Union School District 81 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a elementary school district (GEOID: 1739660).
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.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. states, metros, cities, and ZIPs with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: U.S. Census Bureau ACS, 2026.