1984Final results
1984 election for Iowa House District 20
Iowa House of Representatives · Iowa
John Groninga (D) won with 66.5% of the vote, defeating Tim Cohea (R) by 33.0 points.
John GroningaDemocrat · winner · incumbent
66.5%8,625
Tim CoheaRepublican
33.5%4,343
12,968 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