Elementary School District · IL
Deerfield School District 109
Deerfield School District 109 is a elementary school district in Illinois with a community population of 21,162. The median household income is $201,267 and the median age is 44.6.
21,162
Population
2412
People / sq mi
$201,267
Median Income
44.6
Median Age
Deerfield School District 109 covers 9 sq mi of land at 2411.9 people per square mile.
Race & Ethnicity
| White | 88.9% |
| Black or African American | 0.1% |
| Asian | 75.9% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$201,267
Median Household Income
$95,970
Per Capita Income
1.5%
Poverty Rate
1.6%
Unemployment
Housing
$625,400
Median Home Value
$2,288
Median Rent
88.1%
Homeownership
Education Attainment
98.5%
High School+
82.2%
Bachelor's+
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State rankings
Frequently Asked Questions
Deerfield School District 109 serves a community with a population of 21,162 according to the latest Census ACS 5-Year estimates. This elementary school district is located in Illinois.
The median household income in Deerfield School District 109 is $201,267, with a per capita income of $95,970. The poverty rate is 1.5%.
Deerfield School District 109 is 88.9% White, 0.1% Black or African American, 75.9% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Deerfield School District 109, 98.5% of adults have a high school diploma or higher, and 82.2% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Deerfield School District 109 is $625,400, with a median rent of $2,288. The homeownership rate is 88.1%.
More from Illinois
Data for Deerfield School District 109 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a elementary school district (GEOID: 1711980).
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.