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
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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.
Illinois's 3rd Congressional District stands apart on settlement density — it is among the most densely settled of US congressional districts, at roughly 4,809 people per square mile. With 739,856 residents, Illinois's 3rd Congressional District is a congressional district in Illinois.
The typical household here earns about $86,160, above the US median of $78,538. About 9.0% of residents live below the federal poverty level, below the national 12.4%. Homes carry a median value of $339,900, with typical rent around $1,402.
Roughly 35.7% of adults have a bachelor’s, near the national 35.0%.
That density explains much of the rest of the profile in Illinois's 3rd Congressional District: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Source: U.S. Census Bureau ACS, 2026.