2006Final results
2006 election for Missouri House District 18
Missouri House of Representatives · Missouri
Tom Dempsey (R) won with 52.8% of the vote, defeating Joe Koester (D) by 5.6 points.
Tom DempseyRepublican · winner · incumbent
52.8%6,534
Joe KoesterDemocrat
47.2%5,840
12,374 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2006
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET