1978Final results
1978 election for Iowa House District 15
Iowa House of Representatives · Iowa
Donald D. Avenson (D) won with 54.3% of the vote, defeating Herb Haas (R) by 8.5 points.
Donald D. AvensonDemocrat · winner · incumbent
54.3%4,242
Herb HaasRepublican
45.7%3,576
7,819 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