Illinois's 15th congressional district

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Illinois's 15th congressional district
Interactive map of district boundaries since January 3, 2023
Representative	Mary Miller R–Oakland
Area	17,008.6 sq mi (44,052 km2)
Distribution	51.4% rural 48.6% urban
Population (2023)	745,893
Median household income	$70,766[1]
Ethnicity	89.7% White 3.4% Two or more races 2.9% Black 2.8% Hispanic 0.7% Asian 0.5% other
Cook PVI	R+22[2]

The 15th congressional district of Illinois is currently located in central Illinois. It was located in eastern and southeastern Illinois until 2022. It is currently represented by Republican Mary Miller.

With a Cook Partisan Voting Index rating of R+22, it is one of the most Republican-leaning districts in Illinois.^[2] 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 both of his bids for president.