2018 general · November 6, 2018
2018 Colorado election results
Every race on Colorado's ballot in the 2018 general election: winners, margins and seats that changed party.
Races93
Changed party7
Unopposed5%5 races
Incumbents defeated3
Governors
D 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| Colorado | Jared Polis / Dianne Primavera (D) | 10.6 |
Statewide offices
D 3
| Race | Winner | Won by | Notes |
|---|---|---|---|
| Colorado Attorney General | Phil Weiser (D) | 6.4 | |
| Colorado Secretary of State | Jena Griswold (D) | 8.0 | |
| Colorado Treasurer | Dave Young (D) | 7.3 |
U.S. House
D 4 · R 3 · 1 changed party
| Race | Winner | Won by | Notes |
|---|---|---|---|
| CO-1 | Diana DeGette (D) | 50.8 | |
| CO-2 | Joe Neguse (D) | 26.6 | |
| CO-3 | Scott R. Tipton (R) | 8.0 | |
| CO-4 | Ken Buck (R) | 21.2 | |
| CO-5 | Doug Lamborn (R) | 17.7 | |
| CO-6 | Jason Crow (D) | 11.2 | Flipped |
| CO-7 | Ed Perlmutter (D) | 25.0 |
Colorado State Senate
D 9 · R 8 · 2 changed party
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-1 | Jerry Sonnenberg (R) | 58.0 | |
| SD-2 | Dennis Hisey (R) | 30.6 | |
| SD-3 | Leroy M. Garcia Jr. (D) | 47.2 | |
| SD-5 | Kerry Donovan (D) | 20.9 | |
| SD-6 | Don Coram (R) | 9.4 | |
| SD-7 | Ray Scott (R) | 27.2 | |
| SD-9 | Paul Lundeen (R) | 40.6 | |
| SD-11 | Pete Lee (D) | 23.9 | |
| SD-13 | John Cooke (R) | 20.6 | |
| SD-15 | Rob Woodward (R) | 6.2 | |
| SD-16 | Tammy Story (D) | 14.4 | FlippedIncumbent lost |
| SD-20 | Jessie Danielson (D) | 11.8 | |
| SD-22 | Brittany Pettersen (D) | 16.3 | |
| SD-24 | Faith Winter (D) | 12.5 | FlippedIncumbent lost |
| SD-30 | Chris Holbert (R) | 11.2 | |
| SD-32 | Robert Rodriguez (D) | 48.6 | |
| SD-34 | Julie Gonzales (D) | 66.3 |
Colorado House of Representatives
D 41 · R 24 · 4 changed party
Colorado
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