119th Congress · IL-3
Illinois's 3rd Congressional District
Illinois's 3rd Congressional District (IL-3) has a population of 739,856. The median household income is $86,160 and the median age is 36.4.
739,856
Population
4809
People / sq mi
$86,160
Median Income
36.4
Median Age
IL-3 covers 154 sq mi of land at 4809.0 people per square mile.
Race & Ethnicity
| White | 49.3% |
| Black or African American | 5.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.6% |
Economy & Income
$86,160
Median Household Income
$41,460
Per Capita Income
9.0%
Poverty Rate
3.8%
Unemployment
Housing
$339,900
Median Home Value
$1,402
Median Rent
56.8%
Homeownership
Education
83.6%
High School+
35.7%
Bachelor's+
Other Illinois Congressional Districts
Largest cities in Illinois
Largest counties in Illinois
State rankings
Frequently Asked Questions
Illinois's 3rd Congressional District (IL-3) has a population of 739,856 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 3rd Congressional District is $86,160, with a per capita income of $41,460.
Illinois's 3rd Congressional District is 49.3% White, 5.6% Black, 0.0% Asian, and 2.6% Hispanic or Latino, per Census ACS data.
More from Illinois
Data for Illinois's 3rd 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.
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.