Illinois's 15th congressional district

Illinois's 15th congressional district
Interactive map of district boundaries since January 3, 2023
Representative
Area17,008.6 mi2 (44,052 km2)
Distribution
  • 51.4% rural
  • 48.6% urban
Population (2024)739,197
Median household
income
$74,855
Ethnicity
Cook PVIR+20

Illinois' 15th congressional district is a U.S. congressional district located in the state of Illinois. Situated in central Illinois, the district is predominantly rural. It was located in eastern and southeastern Illinois until 2022. It has been represented by Republican Mary Miller since 2021.

With a Cook Partisan Voting Index rating of R+20, it is one of the most Republican-leaning districts in Illinois. In most of the district, there are no elected Democrats above the county level, and Donald Trump carried over 65% of the district's vote in all of his bids for president.