Unified School District · IL
Alton Community Unit School District 11
Alton Community Unit School District 11 is a unified school district in Illinois with a community population of 45,851. The median household income is $70,457 and the median age is 42.6.
45,851
Population
569
People / sq mi
$70,457
Median Income
42.6
Median Age
Alton Community Unit School District 11 covers 81 sq mi of land at 568.9 people per square mile.
Race & Ethnicity
| White | 78.9% |
| Black or African American | 0.0% |
| Asian | 53.0% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$70,457
Median Household Income
$38,684
Per Capita Income
9.2%
Poverty Rate
3.2%
Unemployment
Housing
$152,200
Median Home Value
$1,038
Median Rent
71.7%
Homeownership
Education Attainment
93.3%
High School+
26.8%
Bachelor's+
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Frequently Asked Questions
Alton Community Unit School District 11 serves a community with a population of 45,851 according to the latest Census ACS 5-Year estimates. This unified school district is located in Illinois.
The median household income in Alton Community Unit School District 11 is $70,457, with a per capita income of $38,684. The poverty rate is 9.2%.
Alton Community Unit School District 11 is 78.9% White, 0.0% Black or African American, 53.0% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Alton Community Unit School District 11, 93.3% of adults have a high school diploma or higher, and 26.8% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Alton Community Unit School District 11 is $152,200, with a median rent of $1,038. The homeownership rate is 71.7%.
More from Illinois
Data for Alton Community Unit School District 11 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 1703600).
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.
Every number on this page links back to the U.S. Census Bureau ACS and decennial files; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
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.