1984Final results
1984 election for Iowa House District 56
Iowa House of Representatives · Iowa
Donald R. Platt (R) won with 68.8% of the vote, defeating John C. Heilman (D) by 37.6 points.
Donald R. PlattRepublican · winner
68.8%7,000
John C. HeilmanDemocrat
31.2%3,176
10,181 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 1984
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET