Illinois’s 6th District
U.S. House · IL-6
Election day November 3, 2026 · forecast of November 2, 2026
Our forecast gives the Democrats a more than 99% chance of winning, with an average lead of 20.5 points.
Safe seat. Chance of a final gap under 5 points: 2%.
What Orbit says
Orbit, our experimental model, picks the same favourite as our main forecast: the Democrat, with a 92% chance (> 99% according to Harfang des neiges).
| Model | Favourite | Chance |
|---|---|---|
| Harfang des neiges | Democrat | > 99% |
| Orbit | Democrat | 92% |
| 50/50 blend | Democrat | 96% |
Compared with the average
| Democrat | Republican | |
|---|---|---|
| IL-6 | 60.2% | 39.8% |
| National averageUnited States | 54.9%+5.3 | 43.9%−4.1 |
Simple average of the 435 districts, not weighted by population.
Projection track
How the projection has moved
Local profile
| Latino citizens aged 18 and over | 12.2% (± 0.5) |
|---|
Current member
Sean Casten · Democrat
Primary results
| Democratic primary | Sean Casten | 75.8% | 69,579 votes |
|---|---|---|---|
| Republican primary | Niki Conforti | 82.2% | 26,783 votes |
Democrat 
Republican Previous election (2024)
The Democrats won by 8.4 points.
Our current projection: the Democrats ahead by 20.5 points.
Watch list
The tightest races
The smallest projected gaps between the top two.
- Forecast updated