Elementary School District · IL
Kirby School District 140
Kirby School District 140 is a elementary school district in Illinois with a community population of 34,554. The median household income is $112,681 and the median age is 43.1.
34,554
Population
3574
People / sq mi
$112,681
Median Income
43.1
Median Age
Kirby School District 140 covers 10 sq mi of land at 3574.4 people per square mile.
Race & Ethnicity
| White | 82.5% |
| Black or African American | 0.3% |
| Asian | 64.8% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$112,681
Median Household Income
$52,389
Per Capita Income
3.9%
Poverty Rate
4.0%
Unemployment
Housing
$318,900
Median Home Value
$2,081
Median Rent
95.3%
Homeownership
Education Attainment
95.9%
High School+
36.8%
Bachelor's+
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State rankings
Frequently Asked Questions
Kirby School District 140 serves a community with a population of 34,554 according to the latest Census ACS 5-Year estimates. This elementary school district is located in Illinois.
The median household income in Kirby School District 140 is $112,681, with a per capita income of $52,389. The poverty rate is 3.9%.
Kirby School District 140 is 82.5% White, 0.3% Black or African American, 64.8% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Kirby School District 140, 95.9% of adults have a high school diploma or higher, and 36.8% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Kirby School District 140 is $318,900, with a median rent of $2,081. The homeownership rate is 95.3%.
More from Illinois
Data for Kirby School District 140 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a elementary school district (GEOID: 1721270).
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.
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.