1970Final results
1970 election for Idaho Legislative District 21
Idaho State Senate · Idaho
John Peavey (R) won with 59.3% of the vote, defeating Oscar C. Arstein (D) by 18.6 points.
John PeaveyRepublican · winner
59.3%4,658
Oscar C. ArsteinDemocrat
40.7%3,195
7,853 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