1970Final results
1970 election for South Dakota Legislative District 25
South Dakota House of Representatives · South Dakota
Simon Chance (R) won with 56.7% of the vote, defeating Walter Kleinlein (D) by 13.3 points.
Simon ChanceRepublican · winner · incumbent
56.7%2,129
Walter KleinleinDemocrat
43.3%1,629
3,758 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