Illinois's 3rd congressional district

Illinois's 3rd congressional district includes parts of Cook County and DuPage County, and has been represented by Democrat Delia Ramirez since January 3, 2023. 

The district was represented by Marie Newman from 2021 to 2023, Dan Lipinski from 2005 to 2021, and by Lipinski's father Bill from 1983 to 2005.

The district includes the western and southwestern suburbs of Chicago. It covers , making it one of the 50 smallest districts in the U.S., although there are five smaller districts in Illinois. The district was created in 1833, five months before Chicago became a town. 

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