2010Flipped from independentFinal results
2010 election for South Dakota Legislative District 9
South Dakota State Senate · South Dakota
Deb Peters (R) won with 63.4% of the vote, defeating Rob Wilson (D) by 26.8 points, a seat another party won last time.
Deb PetersRepublican · winner
63.4%5,119
Rob WilsonDemocrat
36.6%2,956
8,075 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 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET