119th Congress · IL-9
Illinois's 9th Congressional District
Illinois's 9th Congressional District (IL-9) has a population of 743,003. The median household income is $90,983 and the median age is 40.5.
743,003
Population
4430
People / sq mi
$90,983
Median Income
40.5
Median Age
IL-9 covers 168 sq mi of land at 4429.7 people per square mile.
Race & Ethnicity
| White | 62.8% |
| Black or African American | 8.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.3% |
Economy & Income
$90,983
Median Household Income
$54,541
Per Capita Income
6.5%
Poverty Rate
3.6%
Unemployment
Housing
$378,700
Median Home Value
$1,427
Median Rent
60.8%
Homeownership
Education
92.6%
High School+
55.3%
Bachelor's+
Other Illinois Congressional Districts
Largest cities in Illinois
Largest counties in Illinois
State rankings
Frequently Asked Questions
Illinois's 9th Congressional District (IL-9) has a population of 743,003 according to the latest Census ACS 5-Year estimates. Each US Congressional District is drawn to be roughly equal in population (~760K people).
The median household income in Illinois's 9th Congressional District is $90,983, with a per capita income of $54,541.
Illinois's 9th Congressional District is 62.8% White, 8.9% Black, 0.0% Asian, and 1.3% Hispanic or Latino, per Census ACS data.
More from Illinois
Data for Illinois's 9th Congressional District (119th Congress) from the American Community Survey 5-Year estimates. Land area from the Census Gazetteer files. Congressional districts are redrawn after each decennial Census; the 119th Congress (current) uses post-2020 boundaries.
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.