1978Flipped from DemocraticFinal resultsIncumbent defeated
1978 election for Colorado Senate District 9
Colorado State Senate · Colorado
Joel Hefley (R) won with 64.7% of the vote, defeating William J. Comer (D) by 29.3 points, a seat Democrats won last time.
Joel HefleyRepublican · winner
64.7%12,336
William J. ComerDemocrat · incumbent
35.3%6,743
19,079 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET