1970Final results
1970 election for Colorado House District 10
Colorado House of Representatives · Colorado
Donald J. Horst (D) won re-election with 53.5% of the vote, defeating Robert Koch (R) by 6.9 points.
Donald J. HorstDemocrat · winner · incumbent
53.5%3,121
Robert KochRepublican
46.5%2,716
5,837 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 1970
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)