1970Flipped from RepublicanFinal resultsIncumbent defeated
1970 election for South Dakota Legislative District 2
South Dakota State Senate · South Dakota
Allen Sperry (D) won with 29.2% of the vote, defeating E. C. Pieplow (R) by 1.7 points, a seat Republicans won last time.
Allen SperryDemocrat · winner · incumbent
29.2%7,211
E. C. PieplowRepublican · incumbent
27.5%6,782
Cyrus D. RichardsDemocrat
24.4%6,015
Charles W. FulkerRepublican
18.8%4,646
24,654 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