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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State rankings
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).
Alton Community Unit School District 11 stands apart on settlement density — it is among the most densely settled of US school districts, at roughly 569 people per square mile. With 45,851 residents, Alton Community Unit School District 11 is a school district in Illinois.
Median household income is $70,457, below the US median of $78,538. Poverty runs at 9.2%, below the national 12.4%. Homes are comparatively cheap — a median value of $152,200, with typical rent around $1,038.
Degree attainment is mid-range for US school districts: 26.8% of adults hold a four-year degree, below the national 35.0%.
That density explains much of the rest of the profile in Alton Community Unit School District 11: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Source: U.S. Census Bureau ACS, 2026.