2018 general · November 6, 2018
2018 South Dakota House of Representatives election results, district by district
Every South Dakota House of Representatives district in the 2018 general election: winners, margins, unopposed seats and seats that changed party.
Seats after the election
Republicans controlled the chamber · 70 seats
After the electionD 11 · R 59
Races37
Changed party0
Unopposed8%3 races
Incumbents defeated4
Every district
D 11 · R 59
| Race | Winner | Won by | Notes |
|---|---|---|---|
| LD-1 | Tamara St John · Steven D. McCleery (REP) | 1.2 | |
| LD-2 | Lana Greenfield · Kaleb W. Weis (R) | 5.5 | |
| LD-3 | Drew Dennert · Carl Perry (R) | 7.8 | |
| LD-4 | Fred Deutsch · John Mills (R) | 7.0 | |
| LD-5 | Nancy York · Hugh M. Bartels (R) | 11.6 | |
| LD-6 | Herman Otten · Isaac Latterell (R) | 11.0 | |
| LD-7 | Tim Reed · Doug Post (R) | 4.8 | |
| LD-8 | Marli Wiese · Randy Gross (R) | 6.8 | |
| LD-9 | Deb Peters · Michael Saba (REP) | 0.4 | Incumbent lost |
| LD-10 | Doug Barthel · Steven Haugaard (R) | 11.8 | |
| LD-11 | Mark Willadsen · Chris Karr (R) | 4.1 | |
| LD-12 | Arch Beal · Manny Steele (R) | 2.2 | |
| LD-13 | Sue Peterson · Kelly A. Sullivan (REP) | 0.5 | |
| LD-14 | Larry Zikmund · Erin Healy (REP) | 1.0 | Incumbent lost |
| LD-15 | Linda Duba · Jamie Smith (D) | Unopposed | |
| LD-16 | Kevin Jensen · David L. Anderson (R) | 15.5 | |
| LD-17 | Nancy Rasmussen · Ray Ring (REP) | 5.7 | |
| LD-18 | Ryan Cwach · Jean Hunhoff (DEM) | 4.1 | |
| LD-19 | Kyle Schoenfish · Kent S. Peterson (R) | 23.9 | |
| LD-20 | Paul Miskimins · Lance Koth (R) | 8.9 | |
| LD-21 | Lee Qualm · Caleb Finck (R) | 12.0 | |
| LD-22 | Bob Glanzer · Roger Chase (R) | 8.2 | |
| LD-23 | Spencer Gosch · John A. Lake (R) | 24.9 | |
| LD-24 | Mary Duvall · Tim Rounds (R) | 17.2 | |
| LD-25 | Jon Hansen · Tom Pischke (R) | 0.5 | Incumbent lost |
| LD-26A | Shawn Bordeaux (D) | Unopposed | |
| LD-26B | Rebecca Reimer (R) | 23.1 | |
| LD-27 | Peri Pourier · Steve Livermont (DEM) | 0.0 | Incumbent lost |
| LD-28A | Oren L. Lesmeister (D) | Unopposed | |
| LD-28B | Sam Marty (R) | 70.4 | |
| LD-29 | Kirk Chaffee · Thomas J. Brunner (R) | 23.1 | |
| LD-30 | Tim Goodwin · Julie Frye-Mueller (R) | 19.6 | |
| LD-31 | Timothy R. Johns · Charles M. Turbiville (R) | 6.9 | |
| LD-32 | Scyller J. Borglum · Chris Johnson (R) | 1.5 | |
| LD-33 | David Johnson · Taffy Howard (R) | 12.1 | |
| LD-34 | Jess Olson · Michael G. Diedrich (R) | 12.9 | |
| LD-35 | Tina Mulally · Tony Randolph (R) | 13.1 |
South Dakota House of Representatives
Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: MIT Election Data and Science Lab