2004Flipped from DemocraticFinal results
2004 election for Montana House District 70
Montana House of Representatives · Montana
Roger Koopman (R) won with 59.8% of the vote, defeating Byron F. Anderson (D) by 19.5 points, a seat Democrats won last time.
Roger KoopmanRepublican · winner
59.8%3,305
Byron F. AndersonDemocrat
40.2%2,226
5,531 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 2004
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET