2004 general · November 2, 2004
2004 Wisconsin State Senate election results, district by district
Every Wisconsin State Senate district in the 2004 general election: winners, margins, unopposed seats and seats that changed party.
Seats after the election
Republicans controlled the chamber · 33 seats
After the electionD 14 · R 19
Races16
Changed party0
Unopposed38%6 races
Incumbents defeated0
Every district
D 8 · R 8
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-2 | Robert L. Cowles III (R) | 78.5 | |
| SD-4 | Lena C. Taylor (D) | Unopposed | |
| SD-6 | G. Spencer Coggs (D) | Unopposed | |
| SD-8 | Alberta Darling (R) | 14.0 | |
| SD-10 | Sheila E. Harsdorf (R) | 18.5 | |
| SD-12 | Roger M. Breske (D) | 7.0 | |
| SD-14 | Luther S. Olsen (R) | Unopposed | |
| SD-16 | Mark Miller (D) | 20.2 | |
| SD-18 | Carol A. Roessler (R) | Unopposed | |
| SD-20 | Glenn Grothman (R) | Unopposed | |
| SD-22 | Bob Wirch (D) | 4.3 | |
| SD-24 | Julie M. Lassa (D) | 35.2 | |
| SD-26 | Fred A. Risser (D) | 62.0 | |
| SD-28 | Mary A. Lazich (R) | Unopposed | |
| SD-30 | Dave Hansen (D) | 9.2 | |
| SD-32 | Dan Kapanke (R) | 5.1 |
Wisconsin 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