1968Final resultsIncumbent defeated
1968 election for Iowa Senate District 43
Iowa State Senate · Iowa
H. L. Ollenburg (R) won with 58.1% of the vote, defeating John L. Buren (D) by 16.2 points.
H. L. OllenburgRepublican · winner
58.1%9,005
John L. BurenDemocrat · incumbent
41.9%6,491
15,496 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