Illinois' 8th Congressional District
Illinois · IL-08
Illinois' 8th Congressional District is one of 17 U.S. House districts in Illinois, represented in Congress by Raja Krishnamoorthi (Democrat). It is home to roughly 733,887 people, with a median age of 39.5. The population is about 53% White. The median household income is $97,562, and 39% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted leaning Democratic (D+7).
Representative
Current U.S. House member (source: house.gov).
Geography
IL-08 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
Covering 291 square miles, IL-08 is the 345th-largest of the 435 congressional districts by land area. With about 2,522 residents per square mile, it is a largely suburban district. Its shape is very irregular: the district's Polsby-Popper score of 0.12 ranks 389th of 435 nationally, where 1st is the most compact.
Presidential results
In the 2024 presidential election, 53% of IL-08 voters backed Kamala Harris and 46% Donald Trump — a D+7 margin. That is a 8.0-point shift toward the Republicans from 2020, when the district voted D+15.
Two-party presidential vote by district (source: The Downballot).
Who lives here
The median resident of the district is 39.5 years old; 22.7% of residents are under 18 and 15.4% are 65 or older. About 27.3% of residents were born outside the United States, and 41.3% speak a language other than English at home.
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
At $97,562, the district's median household income ranks 84th of 435 districts nationwide. The typical owner-occupied home is worth $302,449, and the median rent is $1,526 a month. 7.5% of residents live below the poverty line, and workers average a 30.3-minute commute (13.9% work from home).
U.S. Census Bureau, American Community Survey (5-year estimates).