1990 general · November 6, 1990
1990 South Dakota election results
Every race on South Dakota's ballot in the 1990 general election: winners, margins and seats that changed party.
Races73
Changed party7
Unopposed23%17 races
Incumbents defeated14
U.S. Senate
R 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| South Dakota | Larry Pressler (R) | 7.3 |
Governors
R 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| South Dakota | George S. Mickelson (R) | 17.8 |
U.S. House
D 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-AL | Tim Johnson (D) | 35.1 |
South Dakota State Senate
D 16 · R 19 · 7 changed party
South Dakota House of Representatives
D 25 · R 44 · Other 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| LD-1 | David Gleason · Mona Greseth (DEM) | 3.7 | |
| LD-2 | Steve Cutler · Alfred A. Waltman (REP) | 1.4 | |
| LD-3 | Craig Schaunaman · Royal J. Wood (DEM) | 8.5 | |
| LD-4 | Dale Howlett · Burdette C. Solum (DEM) | 0.5 | Incumbent lost |
| LD-5 | Robert N. Duxbury · Carol A. Johnson (DEM) | 7.0 | |
| LD-6 | Robert Weber · T. Loren Christianson (R) | Unopposed | |
| LD-7 | Richard B. Negstad · Robert A. Roe (R) | Unopposed | |
| LD-8 | Joyce Hodges · Randy Frederick (R) | Unopposed | |
| LD-9 | Mike Wagner · Juel Johnson (R) | 4.2 | |
| LD-10 | Alvin Gullickson · Jerome B. Lammers (R) | 4.2 | Incumbent lost |
| LD-11 | Patricia Pilcher · William J. Sandness (DEM) | 5.8 | |
| LD-12 | Robert E. Caselli · David R. Munson (DEM) | 2.8 | |
| LD-13 | Jack G. Rentschler · John Timmer (R) | 4.1 | Incumbent lost |
| LD-14 | Janice Nicolay · Roger Hunt (R) | 2.5 | |
| LD-15 | Mary Vanderlinde · Patrick Kane (D) | Unopposed | |
| LD-16 | Michael Oconnor · Howard Kennedy (DEM) | 1.8 | |
| LD-17 | John J. Reedy · Mary B. Edelen (DEM) | 9.0 | |
| LD-18 | J. E. Putnam · Frank Kloucek (REP) | 4.6 | Incumbent lost |
| LD-19 | James W. Abbott · Garry A. Moore (D) | 0.0 | Incumbent lost |
| LD-20 | Albert Kocer · Gordon Mickelson (D) | Unopposed | |
| LD-21 | Jean T. Beddow · Ed Olson (DEM) | Unopposed | |
| LD-22 | Dennis Vanoverschelde · Malcolm C. McKillop (DEM) | 2.4 | |
| LD-23 | Doug Fosheim · Pat Haley (D) | 0.1 | |
| LD-24 | Mike Shaw · Lola Schreiber (R) | 13.9 | |
| LD-25 | Alice Kundert · Elmer Diedtrich (REP) | 4.4 | |
| LD-26 | Marie Ingalls · Kenneth McNenny (R) | Unopposed | |
| LD-27 | Larry Gabriel · Janet R. Good (REP) | 2.2 | |
| LD-28 | Richard Hagen · Larry Lucas (D) | 3.7 | |
| LD-29 | William F. Cerny · John Koskan (DEM) | 3.4 | Incumbent lost |
| LD-30 | Gordon R. Pederson · Elmer E. Flatt (R) | 11.1 | |
| LD-31 | Jim Hood · Harvey Krautschun (R) | Unopposed | |
| LD-32 | Carole Hillard · John Sears (R) | 10.2 | Incumbent lost |
| LD-33 | Mark Hollenbeck · Linda Lea M. Viken (REP) | 1.4 | |
| LD-34 | Rexford A. Hagg · Don Ham (R) | 4.4 | |
| LD-35 | Della M. Wishard · Charles Q. Mateer (R) | Unopposed |
South Dakota
Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: Algara, Carlos; Amlani, Sharif (Harvard Dataverse); Harvard Dataverse / Carl Klarner; MIT Election Data and Science Lab