1972Final results
1972 election for Iowa Senate District 39
Iowa State Senate · Iowa
Roger J. Shaff (R) won with 56.6% of the vote, defeating Donald R. Arenz (D) by 13.2 points.
Roger J. ShaffRepublican · winner · incumbent
56.6%12,537
Donald R. ArenzDemocrat
43.4%9,609
22,146 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 1972
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET