Illinois · 6th District · 2026

Illinois’ 6th District moved 17 points toward the Democrats

Sean Casten won re-election with 62.5%, a D+25.0 margin against Illinois’ 6th District’s D+8.4 vote for House in 2024.

Live · Updated 6:58 p.m. ET, Nov. 5 · 92.4% reported

62.5

Sean Casten

158,562 votes

✓ Winner · AP call 10:37 p.m. ET, Nov. 3

37.5

Niki Conforti

95,180 votes

Vote share · per NPR92.4% reported

62.5%37.5%

Results per NPR · 23:58 UTC

Margin vs 2024D+16.6 swing

2026 D+25.0

2024 House D+8.4

Circle size: votes counted. Colour: the leader, darker for a wider margin; grey until half the vote is in. District tint: the districtwide leader. Point at a circle for its count.

Each place shows the latest report from any source we collect: AP, the networks, DDHQ and state and county election offices, credited row by row. Race calls are AP’s. Counts are unofficial until certified. How we collect and check results.