1980Final results
1980 election for South Dakota Legislative District 9
South Dakota State Senate · South Dakota
Clyde E. Streff (R) won with 61.2% of the vote, defeating Roger E. Maroney (D) by 22.5 points.
Clyde E. StreffRepublican · winner
61.2%5,519
Roger E. MaroneyDemocrat
38.8%3,493
9,012 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