2004 general · November 2, 2004
2004 Colorado State Senate election results, district by district
Every Colorado State Senate district in the 2004 general election: winners, margins, unopposed seats and seats that changed party.
Seats after the election
Democrats controlled the chamber · 35 seats
After the electionD 18 · R 17
Races18
Changed party0
Unopposed17%3 races
Incumbents defeated1
Every district
D 11 · R 7
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-4 | Tom J. Wiens (R) | 38.6 | |
| SD-8 | Jack Taylor (R) | 2.9 | |
| SD-10 | Ron May (R) | Unopposed | |
| SD-12 | Andy McElhany (R) | 55.6 | |
| SD-14 | Bob Bacon (D) | 14.6 | |
| SD-17 | Brandon C. Shaffer (D) | 12.4 | |
| SD-18 | Ron Tupa (D) | 56.7 | |
| SD-19 | Sue Windels (D) | 7.4 | |
| SD-21 | Deanna Hanna (D) | 19.0 | |
| SD-23 | Shawn Mitchell (R) | 16.9 | |
| SD-25 | Stephanie Takis (D) | 13.1 | |
| SD-26 | Jim F. Dyer (R) | 2.7 | |
| SD-27 | Nancy Spence (R) | 23.0 | |
| SD-28 | Suzanne Williams (D) | 10.7 | Incumbent lost |
| SD-29 | Bob Hagedorn (D) | 26.6 | |
| SD-31 | Jennifer L. Veiga (D) | Unopposed | |
| SD-33 | Peter C. Groff (D) | Unopposed | |
| SD-35 | Ken Gordon (D) | 29.3 |
Colorado 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