The 2018 Arizona Senate election took place on November 6, 2018, with the primary election held on August 28, 2018. Arizona voters elected all 30 members of the Arizona Senate to serve two-year terms.
The election coincided with United States national elections and Arizona state elections, including U.S. Senate, U.S. House, Arizona governor and Arizona House.
Following the previous election in 2016, Republicans held a 17-to-13-seat majority over Democrats. Republicans maintained their unchanged 17-to-13 majority in 2018. The newly elected members served in the 54th Arizona State Legislature, during which Republican Karen Fann was elected President of the Arizona Senate.
Retiring incumbents Democrats District 3: Olivia Cajero Bedford (term-limited) District 9: Steve Farley District 24: Katie Hobbs District 27: Catherine Miranda District 30: Robert Meza (term-limited)
Republicans District 11: Steve Smith District 12: Warren Petersen District 14: Gail Griffin (term-limited) District 15: Nancy Barto (term-limited) District 17: Steve Yarbrough (term-limited) District 20: Kimberly Yee District 22: Judy Burges (term-limited) District 23: John Kavanagh District 25: Bob Worsley
Predictions SourceRankingAs of Governing | October 8, 2018
Summary of results Italics denote an open seat held by the incumbent party; bold text denotes a gain for a party.
State senate district Incumbent Party Elected senator Outcome 1st Karen Fann Rep Karen Fann Rep hold 2nd Andrea Dalessandro Dem Andrea Dalessandro Dem hold 3rd Olivia Cajero Bedford Dem Sally Ann Gonzales Dem hold 4th Lisa Otondo Dem Lisa Otondo Dem hold 5th Sonny Borrelli Rep Sonny Borrelli Rep hold 6th Sylvia Tenney Allen Rep Sylvia Tenney Allen Rep hold 7th Jamescita Peshlakai Dem Jamescita Peshlakai Dem hold 8th Frank Pratt Rep Frank Pratt Rep hold 9th Steve Farley Dem Victoria Steele Dem hold 10th David Bradley Dem David Bradley Dem hold 11th Steve Smith Rep Vince Leach Rep hold 12th Warren Petersen Rep Eddie Farnsworth Rep hold 13th Sine Kerr Rep Sine Kerr Rep hold 14th Gail Griffin Rep David Gowan Rep hold 15th Nancy Barto Rep Heather Carter Rep hold 16th David Christian Farnsworth Rep David Christian Farnsworth Rep hold 17th Steve Yarbrough Rep J. D. Mesnard Rep hold 18th Sean Bowie Dem Sean Bowie Dem hold 19th Lupe Chavira Contreras Dem Lupe Chavira Contreras Dem hold 20th Kimberly Yee Rep Paul Boyer Rep hold 21st Rick Gray Rep Rick Gray Rep hold 22nd Judy Burges Rep David Livingston Rep hold 23rd John Kavanagh Rep Michelle Ugenti-Rita Rep hold 24th Katie Hobbs Dem Lela Alston Dem hold 25th Bob Worsley Rep Tyler Pace Rep hold 26th Juan Mendez Dem Juan Mendez Dem hold 27th Catherine Miranda Dem Rebecca Rios Dem hold 28th Kate Brophy McGee Rep Kate Brophy McGee Rep hold 29th Martín Quezada Dem Martín Quezada Dem hold 30th Robert Meza Dem Otoniel "Tony" Navarrete Dem hold
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__NOTOC__
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
See also 2018 United States elections 2018 United States Senate election in Arizona 2018 United States House of Representatives elections in Arizona 2018 Arizona elections 2018 Arizona gubernatorial election 2018 Arizona Secretary of State election 2018 Arizona Attorney General election 2018 Arizona Superintendent of Public Instruction election 2018 Arizona House of Representatives election 54th Arizona State Legislature Arizona Senate
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