119th Congress · IL-15
Illinois's 15th Congressional District
Illinois's 15th Congressional District (IL-15) has a population of 749,694. The median household income is $71,893 and the median age is 42.2.
749,694
Population
45
People / sq mi
$71,893
Median Income
42.2
Median Age
IL-15 covers 16,753 sq mi of land at 44.8 people per square mile.
Race & Ethnicity
| White | 91.4% |
| Black or African American | 3.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.9% |
Economy & Income
$71,893
Median Household Income
$38,233
Per Capita Income
7.0%
Poverty Rate
2.6%
Unemployment
Housing
$147,400
Median Home Value
$810
Median Rent
77.0%
Homeownership
Education
92.8%
High School+
25.5%
Bachelor's+
Other Illinois Congressional Districts
Largest cities in Illinois
Largest counties in Illinois
State rankings
Frequently Asked Questions
Illinois's 15th Congressional District (IL-15) has a population of 749,694 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 15th Congressional District is $71,893, with a per capita income of $38,233.
Illinois's 15th Congressional District is 91.4% White, 3.1% Black, 0.0% Asian, and 0.9% Hispanic or Latino, per Census ACS data.
More from Illinois
Data for Illinois's 15th 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.
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.