2020 general · November 3, 2020
2020 Colorado State Senate election results, district by district
Every Colorado State Senate district in the 2020 general election: winners, margins, unopposed seats and seats that changed party.
Seats after the election
Democrats controlled the chamber · 35 seats
After the electionD 20 · R 15
Races18
Changed party1
Unopposed0%0 races
Incumbents defeated0
Every district
D 11 · R 7
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-4 | Jim Smallwood (R) | 27.2 | |
| SD-8 | Bob Rankin (R) | 1.2 | |
| SD-10 | Larry Liston (R) | 18.2 | |
| SD-12 | Bob Gardner (R) | 20.6 | |
| SD-14 | Joann Ginal (D) | 33.3 | |
| SD-17 | Sonya Jaquez Lewis (D) | 35.8 | |
| SD-18 | Steve Fenberg (D) | 65.8 | |
| SD-19 | Rachel Zenzinger (D) | 18.3 | |
| SD-21 | Dominick Moreno (D) | 27.1 | |
| SD-23 | Barbara Kirkmeyer (R) | 10.3 | |
| SD-25 | Kevin Priola (R) | 1.7 | |
| SD-26 | Jeff Bridges (D) | 23.8 | |
| SD-27 | Chris Kolker (D) | 10.6 | Flipped |
| SD-28 | Janet Buckner (D) | 23.8 | |
| SD-29 | Rhonda Fields (D) | 37.3 | |
| SD-31 | Chris Hansen (D) | 53.4 | |
| SD-33 | James Coleman (D) | 82.0 | |
| SD-35 | Cleave Simpson (R) | 20.2 |
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: MIT Election Data and Science Lab