1980Final results
1980 election for Iowa Senate District 40
Iowa State Senate · Iowa
Edgar H. Holden (R) won with 55.8% of the vote, defeating Mary Johnson (D) by 11.7 points.
Edgar H. HoldenRepublican · winner
55.8%16,157
Mary JohnsonDemocrat
44.2%12,777
28,935 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 1980
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET