2018 general · November 6, 2018
2018 Arizona State Senate election results, district by district
Every Arizona State Senate district in the 2018 general election: winners, margins, unopposed seats and seats that changed party.
Seats after the election
Republicans controlled the chamber · 30 seats
After the electionD 13 · R 17
Races30
Changed party0
Unopposed20%6 races
Incumbents defeated0
Every district
D 13 · R 17
| Race | Winner | Won by | Notes |
|---|---|---|---|
| LD-1 | Karen Fann (R) | 39.2 | |
| LD-2 | Andrea Dalessandro (D) | 19.3 | |
| LD-3 | Sally Gonzales (D) | Unopposed | |
| LD-4 | Lisa Otondo (D) | Unopposed | |
| LD-5 | Sonny Borrelli (R) | 50.5 | |
| LD-6 | Sylvia Tenney Allen (R) | 1.8 | |
| LD-7 | Mae Peshlakai (D) | 34.3 | |
| LD-8 | Frank Pratt (R) | 12.3 | |
| LD-9 | Victoria Steele (D) | 25.5 | |
| LD-10 | David Bradley (D) | 16.9 | |
| LD-11 | Vince Leach (R) | 10.2 | |
| LD-12 | Eddie Farnsworth (R) | 15.6 | |
| LD-13 | Sine Kerr (R) | 25.0 | |
| LD-14 | David Gowan (R) | 21.1 | |
| LD-15 | Heather Carter (R) | 20.2 | |
| LD-16 | Dave Farnsworth (R) | 22.9 | |
| LD-17 | J.D. Mesnard (R) | 1.8 | |
| LD-18 | Sean Bowie (D) | 13.7 | |
| LD-19 | Lupe Contreras (D) | Unopposed | |
| LD-20 | Paul Boyer (R) | 3.9 | |
| LD-21 | Rick Gray (R) | 4.5 | |
| LD-22 | David Livingston (R) | 26.7 | |
| LD-23 | Michelle Ugenti (R) | 18.9 | |
| LD-24 | Lela Alston (D) | 43.9 | |
| LD-25 | Tyler Pace (R) | 23.6 | |
| LD-26 | Juan Mendez (D) | 31.5 | |
| LD-27 | Rebecca Rios (D) | Unopposed | |
| LD-28 | Kate Brophymcgee (R) | 0.3 | |
| LD-29 | Martin J. Quezada (D) | Unopposed | |
| LD-30 | Otoniel Navarrete (D) | Unopposed |
Arizona 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