1980Flipped from RepublicanFinal results
1980 election for South Dakota Legislative District 21
South Dakota State Senate · South Dakota
Bob Samuelson (D) won with 52.0% of the vote, defeating Dale D. Ingalls (R) by 4.0 points, a seat Republicans won last time.
Bob SamuelsonDemocrat · winner
52.0%4,255
Dale D. IngallsRepublican
48.0%3,929
8,184 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