2012 general · November 6, 2012
2012 South Dakota State Senate election results, district by district
Every South Dakota State Senate district in the 2012 general election: winners, margins, unopposed seats and seats that changed party.
Seats after the election
Republicans controlled the chamber · 35 seats
After the electionD 7 · R 28
Races35
Changed party0
Unopposed34%12 races
Incumbents defeated1
Every district
D 7 · R 28
| Race | Winner | Won by | Notes |
|---|---|---|---|
| LD-1 | Jason Frerichs (D) | Unopposed | |
| LD-2 | Chuck Welke (D) | 2.8 | Incumbent lost |
| LD-3 | Al Novstrup (R) | 7.1 | |
| LD-4 | Tim Begalka (R) | 21.9 | |
| LD-5 | Ried Holien (R) | 21.1 | |
| LD-6 | Ernie Otten (R) | 30.9 | |
| LD-7 | Larry Tidemann (R) | 7.0 | |
| LD-8 | Russell Olson (R) | 26.7 | |
| LD-9 | Deb Peters (R) | Unopposed | |
| LD-10 | Shantel Krebs (R) | 22.1 | |
| LD-11 | David M. Omdahl (R) | 13.5 | |
| LD-12 | Mark Johnston (R) | 12.5 | |
| LD-13 | Phyllis M. Heineman (R) | 20.2 | |
| LD-14 | Deb Soholt (R) | 11.0 | |
| LD-15 | Angie Buhl (D) | 9.5 | |
| LD-16 | Dan Lederman (R) | 20.1 | |
| LD-17 | Tom Jones (D) | 4.9 | |
| LD-18 | Jean Hunhoff (R) | 30.3 | |
| LD-19 | Billy L. Vangerpen (R) | 20.1 | |
| LD-20 | Mike Vehle (R) | 14.0 | |
| LD-21 | Billie H. Sutton (D) | 18.9 | |
| LD-22 | Jim White (R) | 8.8 | |
| LD-23 | Corey Brown (R) | Unopposed | |
| LD-24 | Jeff Monroe (R) | Unopposed | |
| LD-25 | Tim Rave (R) | 2.5 | |
| LD-26 | Larry Lucas (D) | 6.0 | |
| LD-27 | Jim Bradford (D) | Unopposed | |
| LD-28 | Ryan M. Maher (R) | Unopposed | |
| LD-29 | Larry Rhoden (R) | Unopposed | |
| LD-30 | Bruce Rampelberg (R) | Unopposed | |
| LD-31 | Bob Ewing (R) | Unopposed | |
| LD-32 | Stanford M. Adelstein (R) | Unopposed | |
| LD-33 | Phil Jensen (R) | 14.8 | |
| LD-34 | Craig Tieszen (R) | Unopposed | |
| LD-35 | Mark Kirkeby (R) | Unopposed |
South Dakota State Senate
Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: Harvard Dataverse / Carl Klarner