1998 general · November 3, 1998
1998 Iowa State Senate election results, district by district
Every Iowa State Senate district in the 1998 general election: winners, margins, unopposed seats and seats that changed party.
Seats after the election
Republicans controlled the chamber · 50 seats
After the electionD 19 · R 31
Races25
Changed party6
Unopposed32%8 races
Incumbents defeated1
Every district
D 11 · R 14
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-1 | Steve Hansen (D) | 22.4 | |
| SD-3 | Kenneth Veenstra (R) | Unopposed | |
| SD-5 | Mary Lou Freeman (R) | Unopposed | |
| SD-7 | Mike Sexton (R) | 3.0 | Flipped |
| SD-9 | Stewart Iverson Jr. (R) | 32.9 | |
| SD-11 | John W. Jensen (R) | Unopposed | |
| SD-13 | Patricia Harper (D) | 27.2 | Flipped |
| SD-15 | Betty Soukup (D) | 0.6 | FlippedIncumbent lost |
| SD-17 | Tom Flynn (D) | Unopposed | |
| SD-19 | Sheldon Rittmer (R) | Unopposed | |
| SD-21 | Maggie Tinsman (R) | 35.6 | |
| SD-23 | Joe Bolkcom (R) | Unopposed | Flipped |
| SD-25 | Robert E. Dvorsky (D) | 28.7 | |
| SD-27 | Wally E. Horn (D) | Unopposed | |
| SD-29 | Dennis H. Black (D) | 21.2 | |
| SD-31 | Johnie Hammond (D) | 11.2 | |
| SD-33 | Jeffrey M. Lamberti (R) | 69.0 | Flipped |
| SD-35 | Dick L. Dearden (D) | 43.3 | |
| SD-37 | Mary E. Kramer (R) | 4.1 | |
| SD-39 | Joann Douglas (R) | 13.2 | |
| SD-41 | Nancy Boettger (R) | 37.0 | |
| SD-43 | Derryl McLaren (R) | Unopposed | |
| SD-45 | Bill Fink (D) | 13.4 | |
| SD-47 | David P. Miller (R) | 6.9 | Flipped |
| SD-49 | Mark S. Shearer (D) | 6.2 |
Iowa 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