The 1990 Arizona Senate election was held on November 6, 1990. Voters elected members of the Arizona Senate in all 30 of the state's legislative districts to serve a two-year term. Primary elections were held on September 11, 1990.
Prior to the elections, the Republicans held a majority of 17 seats over the Democrats' 13 seats.
Following the election, Democrats flipped control of the chamber and took a majority of 17 Democrats to 13 Republicans, a net gain of four seats for Democrats.
The newly elected senators served in the 40th Arizona State Legislature.
Retiring Incumbents
Democrats
- District 2: Tony Gabaldon
Republicans
- District 12: John T. Mawhinney
- District 14: William J. "Bill" DeLong
- District 24: Pete Corpstein
- District 28: Robert B. Usdane
Incumbents Defeated in Primary Elections
Republicans
- District 1: John Hays
- District 21: Jerry Gillespie
Incumbents Defeated in General Elections
Democrats
- District 5: Jones Osborn
Republicans
- District 9: Jeffrey J. Hill
- District 16: Wayne Stump
- District 18: Leo Corbet
- District 25: Jacque Steiner
Detailed Results
District 1
District 2
District 3
District 4
District 5
District 6
District 7
District 8
District 9
District 10
District 11
District 12
District 13
District 14
District 15
District 16
District 17
District 18
District 19
District 20
District 21
District 22
District 23
District 24
District 25
District 26
District 27
District 28
District 29
District 30
References