Illinois's 12th congressional district

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Illinois's 12th congressional district
Interactive map of district boundaries since January 3, 2023
Representative	Mike Bost R–Murphysboro
Area	14,296.2 sq mi (37,027 km2)
Distribution	75.4% urban 24.6% rural
Population (2022)	748,293
Median household income	$62,253[1]
Ethnicity	86.9% White 4.9% Black 3.9% Two or more races 2.8% Hispanic 1.0% Asian 0.5% other
Cook PVI	R+24[2]

The 12th congressional district of Illinois is a congressional district in the southern part of U.S. state of Illinois. It has been represented by Republican Mike Bost since 2015. With a Cook Partisan Voting Index of R+24, it is the most Republican district in Illinois.^[2]