1970Final results
1970 election for Iowa Senate District 29
Iowa State Senate · Iowa
Reinhold O. Carlson (R) won with 49.9% of the vote, defeating Dan L. Johnston (D) by 1.7 points.
Reinhold O. CarlsonRepublican · winner
49.9%9,646
Dan L. JohnstonDemocrat
48.2%9,317
James W. ParkerIndependent
1.9%375
19,338 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 1970
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET