1984Final results
1984 election for Iowa Senate District 42
Iowa State Senate · Iowa
David Readinger (R) won with 54.6% of the vote, defeating Joseph Z. (D) by 9.1 points.
David ReadingerRepublican · winner · incumbent
54.6%17,160
Joseph Z.Democrat
45.4%14,286
31,448 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