2018Final results
2018 election for Arizona Legislative District 13
Arizona House of Representatives · Arizona
2 seats: Tim Dunn (R), Joanne Osborne (R) won.
2 seatsTim DunnRepublican · winner
39.1%46,602
Joanne OsborneRepublican · winner
36.7%43,780
Thomas TzitzuraDemocrat
23.9%28,523
119,232 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET