1968Final results
1968 election for Iowa Senate District 21
Iowa State Senate · Iowa
Alan Shirley (D) won with 51.0% of the vote, defeating Leroy H. Petersen (R) by 2.1 points.
Alan ShirleyDemocrat · winner · incumbent
51.0%10,443
Leroy H. PetersenRepublican
49.0%10,014
20,457 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 1968
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET