2026 results · Illinois · Illinois 1st District
Jonathan Jackson, the Democrat, wins re-election in Illinois's 1st District
Kamala Harris carried the district by 31.6 points in 2024; this year's count is a 11.7-point move toward the Democrats.
| Candidate | Votes | Share | Share of the vote |
|---|---|---|---|
| Jonathan JacksonDemocrat, incumbent | 165,499 | 71.7% | |
| Christian MaxwellRepublican | 65,408 | 28.3% |
Called by Call the Map, Nov 4, 10:46 AM EST · 94% counted.
About 94% of the expected vote counted230,907 votesCount last changed Nov 7, 1:02 PM EST · checked Nov 7, 5:00 PM ESTSource: the official state and county counts, gathered by civicAPI
The map
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About the seat
Illinois's 1st District takes in all or part of 3 counties. The Democrats held it before this election. Its voters went D+31.6 for president in 2024. Its move from that vote, 11.7 points toward the Democrats, ranks 14 of 17 among the state's districts, counting from the largest move toward the Democrats.
- 2024 president
- D+31.6
- 2024 House race, same lines
- D+31.7
- Move from 2024, rank in state
- 14 of 17
- Cook County62%
- Will County32%
- Kankakee County6%
Shares are of the votes counted this year. The 2024 House figure is the same district, on the same lines.
What the count shows
Added together, the 3 counties compared moved 11.6 points toward the Democrats from the 2024 presidential vote.
The counties compared cast 70% as many votes as in 2024, from 72% in Cook County to 62% in Kankakee County.
Kankakee County moved most: R+27.0 for president in 2024, R+15.3 this year
The 3 counties with the largest moves from the 2024 presidential vote, among those with 2,000 or more votes for president in 2024 and a quarter of that counted. Each line runs from the 2024 margin to this year’s.
2024 president 2026
Cook County added 22,470 net votes for Maxwell against the 2024 margin
Across the 3 counties compared, the margin moved by 5,039 votes toward Maxwell: this year’s lead in votes against the 2024 presidential lead in votes, county by county. The figure counts voters who changed sides and differences in who turned out alike; the count cannot tell them apart.
- Cook County+22,470 Maxwell
- Will County+13,819 Jackson
- Kankakee County+3,612 Jackson
Illinois’s ballot
StatewideDemocrats won all 6 of Illinois's statewide races.
U.S. HouseBefore the election D 14–3, now D 14–3
won leads, still counting changed party. Margins are the leader’s share minus the runner-up’s, in points.
Every count on this page is the official count, from the state and its counties. Counts are unofficial until the state certifies them. The 2024 comparison is the presidential vote, Kamala Harris against Donald Trump, on the same ground. Margins are the Democrat minus the Republican, in points of all votes.