CalledUnofficial results
Missouri House District 55
Missouri House of Representatives · Missouri
William (Bill) Irwin won re-election by 23.3 points over Jon Pennell.
William (Bill) IrwinRepublican · winner · incumbent
61.7%9,465
Jon PennellDemocrat
38.3%5,886
95% of the expected vote counted · 15,351 votes
Source: civicAPI unofficial results and race callsUpdated Nov 7, 2026, 7:01 PM ET
Where the race moved
Against the 2024 presidential vote
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
- Jon Pennell
- <1%
- William (Bill) Irwin
- >99%
- Projected margin
- R+31.7