1980Final results
1980 election for South Dakota Legislative District 9
South Dakota House of Representatives · South Dakota
2 seats: John V. Terveen (R), Malcolm C. McKillop (R) won.
2 seatsJohn V. TerveenRepublican · winner · incumbent
34.2%5,272
Malcolm C. McKillopRepublican · winner
33.6%5,178
Duaine SwensonDemocrat
32.2%4,952
15,402 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