1980Final results
1980 election for South Dakota Legislative District 20
South Dakota House of Representatives · South Dakota
2 seats: Eugene H. Wiest (R), Walter L. Zabel (R) won.
2 seatsEugene H. WiestRepublican · winner · incumbent
40.2%6,190
Walter L. ZabelRepublican · winner · incumbent
38.8%5,979
Ruth SmithDemocrat
21.0%3,229
15,398 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