1968Final resultsIncumbent defeated
1968 election for Iowa House District JOHNSON 1
Iowa House of Representatives · Iowa
Joseph C. Johnston (D) won with 51.9% of the vote, defeating Earl M. Yoder (R) by 3.8 points.
Joseph C. JohnstonDemocrat · winner
51.9%6,907
Earl M. YoderRepublican · incumbent
48.1%6,405
13,312 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET