2022Final results
2022 election for Illinois's 6th District
U.S. House · Illinois
Sean Casten (D) won with 54.4% of the vote, defeating Keith Pekau (R) by 8.7 points.
Sean CastenDemocrat · winner
54.4%150,496
Keith PekauRepublican
45.6%126,351
276,863 votes
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET
The seat over time
D − R margin in this seat's races around 2022
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Sean CastenKeith Pekau
$5.6M
Raised by the campaign
$1.5M
$5.9M
Spent by the campaign
$1.5M
$54.4K
Cash on hand
$3.3K
Campaign money: FEC, through Dec 31, 2022.
Source: FEC campaign filingsUpdated Dec 31, 2022