Elementary School District · IL
O'Fallon Community Consolidated School District 90
O'Fallon Community Consolidated School District 90 is a elementary school district in Illinois with a community population of 32,272. The median household income is $113,170 and the median age is 38.5.
32,272
Population
855
People / sq mi
$113,170
Median Income
38.5
Median Age
O'Fallon Community Consolidated School District 90 covers 38 sq mi of land at 855.2 people per square mile.
Race & Ethnicity
| White | 71.6% |
| Black or African American | 0.0% |
| Asian | 46.8% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$113,170
Median Household Income
$55,869
Per Capita Income
4.5%
Poverty Rate
2.0%
Unemployment
Housing
$303,600
Median Home Value
$1,195
Median Rent
76.9%
Homeownership
Education Attainment
97.4%
High School+
52.0%
Bachelor's+
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Frequently Asked Questions
O'Fallon Community Consolidated School District 90 serves a community with a population of 32,272 according to the latest Census ACS 5-Year estimates. This elementary school district is located in Illinois.
The median household income in O'Fallon Community Consolidated School District 90 is $113,170, with a per capita income of $55,869. The poverty rate is 4.5%.
O'Fallon Community Consolidated School District 90 is 71.6% White, 0.0% Black or African American, 46.8% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In O'Fallon Community Consolidated School District 90, 97.4% of adults have a high school diploma or higher, and 52.0% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in O'Fallon Community Consolidated School District 90 is $303,600, with a median rent of $1,195. The homeownership rate is 76.9%.
More from Illinois
Data for O'Fallon Community Consolidated School District 90 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a elementary school district (GEOID: 1729760).
For this entity, the underlying data on this page comes from the U.S. Census Bureau ACS and decennial files. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
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.