| Outcome | Share of simulations |
|---|---|
| 4.2 seats | 0.9% |
| 6.1 seats | 2.7% |
| 7.9 seats | 6.5% |
| 9.7 seats | 12.2% |
| 11.5 seats | 17.7% |
| 13.4 seats | 20.1% |
| 15.2 seats | 17.7% |
| 17.0 seats | 12.2% |
| 18.9 seats | 6.5% |
| 20.7 seats | 2.7% |
| 22.5 seats | 0.9% |
Live model read · Illinois House forecast
13.4 seats across House districts in this state.MethodologyVerify the mathGenerate worksheetUpdated Jul 12, 2026