Arizona State Senate District 18
Next vote Tue, Nov 3, 2026 · Represented by Priya Sundareshan Democratic · Member list as of Oct 28
Not available. No official list was read (azsos.gov blocks automated access). Arizona Secretary of State, Elections
- Last election
- Priya Sundareshan (Democratic) was unopposed, 2024
More about this seat
All State Senate districts
Select a shape for details. Arrow keys move between shapes.
- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
Map settings
Vote in Arizona
- Register
- Registration, polling place, sample ballot lookup, iD rules, election office
- Mail ballot status
Trouble voting? Election Protection hotline: 866-OUR-VOTE. A nonpartisan coalition of civil-rights and voting-rights groups, not a government service. 866ourvote.org
History (28 elections for this seat)
- Votes for listed candidates
- 92,569
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2024)
Arizona Senate District 18, 1970 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticPriya SundareshanWon Democratic 89,00396.2% Scattered write-ins Write-in 3,5663.9% - Votes for listed candidates
- 108,239
- Election day
- November 8, 2022
- District map
- Older district map (2022)
Arizona Senate District 18, 1970 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticPriya SundareshanWon Democratic 67,34362.2% RepublicanStan Caine Republican 40,89637.8% - Votes for listed candidates
- 129,079
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Arizona Senate District 18, 1970 to 2024, 2020, every candidate Candidate Party Votes and share Share DemocraticSean BowieWon(incumbent) Democratic 75,01358.1% RepublicanSuzanne Sharer Republican 54,06641.9% - Votes for listed candidates
- 100,976
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Arizona Senate District 18, 1970 to 2024, 2018, every candidate Candidate Party Votes and share Share DemocraticSean BowieWon(incumbent) Democratic 57,40156.9% RepublicanFrank Schmuck Republican 43,57543.1% - Votes for listed candidates
- 104,897
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Arizona Senate District 18, 1970 to 2024, 2016, every candidate Candidate Party Votes and share Share DemocraticSean BowieWon Democratic 53,96251.4% RepublicanFrank Schmuck Republican 50,93548.6% - Votes for listed candidates
- 64,245
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2021)
Arizona Senate District 18, 1970 to 2024, 2014, every candidate Candidate Party Votes and share Share RepublicanJeff DialWon Republican 34,52253.7% DemocraticJanie Hydrick Democratic 29,72346.3% - Votes for listed candidates
- 96,199
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Arizona Senate District 18, 1970 to 2024, 2012, every candidate Candidate Party Votes and share Share RepublicanJohn McComishWon(incumbent) Republican 51,08453.1% DemocraticJanie Hydrick Democratic 45,11546.9% - Votes for listed candidates
- 31,023
- Election day
- November 2, 2010
- District map
- Older district map (2004 to 2011)
Arizona Senate District 18, 1970 to 2024, 2010, every candidate Candidate Party Votes and share Share RepublicanRussell PearceWon(incumbent) Republican 17,55256.6% DemocraticAndrew Sherwood Democratic 10,66334.4% LibertarianAndrea Garcia Libertarian 2,8089.1% - Votes for listed candidates
- 43,121
- Election day
- November 4, 2008
- District map
- Older district map (2004 to 2011)
Arizona Senate District 18, 1970 to 2024, 2008, every candidate Candidate Party Votes and share Share RepublicanRussell PearceWon Republican 24,23256.2% DemocraticJudah Nativio Democratic 18,88943.8% - Votes for listed candidates
- 28,551
- Election day
- November 7, 2006
- District map
- Older district map (2004 to 2011)
Arizona Senate District 18, 1970 to 2024, 2006, every candidate Candidate Party Votes and share Share RepublicanKaren JohnsonWon(incumbent) Republican 20,12270.5% LibertarianRachel Kielsky Libertarian 8,42929.5% - Votes for listed candidates
- 32,732
- Election day
- November 2, 2004
- District map
- Older district map (2004 to 2011)
Arizona Senate District 18, 1970 to 2024, 2004, every candidate Candidate Party Votes and share Share RepublicanKaren JohnsonWon Republican 32,732100.0% - Votes for listed candidates
- 21,366
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2003)
Arizona Senate District 18, 1970 to 2024, 2002, every candidate Candidate Party Votes and share Share RepublicanMark AndersonWon Republican 21,35499.9% OtherIlias Kostopoulos Other 120.1% - Votes for listed candidates
- 32,956
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
Arizona Senate District 18, 1970 to 2024, 2000, every candidate Candidate Party Votes and share Share RepublicanSusan GerardWon Republican 32,956100.0% - Votes for listed candidates
- 25,481
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
Arizona Senate District 18, 1970 to 2024, 1998, every candidate Candidate Party Votes and share Share RepublicanMarc SpitzerWon(incumbent) Republican 25,481100.0% - Votes for listed candidates
- 46,113
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
Arizona Senate District 18, 1970 to 2024, 1996, every candidate Candidate Party Votes and share Share RepublicanMarc SpitzerWon(incumbent) Republican 28,35261.5% DemocraticDon Peters Democratic 14,87032.3% LibertarianDonna Hancock Libertarian 2,8916.3% - Votes for listed candidates
- 36,121
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
Arizona Senate District 18, 1970 to 2024, 1994, every candidate Candidate Party Votes and share Share RepublicanMarc SpitzerWon(incumbent) Republican 26,41373.1% LibertarianDonna Hancock Libertarian 9,70826.9% - Votes for listed candidates
- 51,296
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
Arizona Senate District 18, 1970 to 2024, 1992, every candidate Candidate Party Votes and share Share RepublicanMarc SpitzerWon Republican 25,46249.6% DemocraticNancy Hill(incumbent) Democratic 23,29345.4% OtherDonna Hancock Other 2,5415.0% - Votes for listed candidates
- 32,472
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1991)
Arizona Senate District 18, 1970 to 2024, 1990, every candidate Candidate Party Votes and share Share DemocraticNancy HillWon Democratic 16,96552.3% RepublicanLeo Corbet(incumbent) Republican 15,50747.8% - Votes for listed candidates
- 36,364
- Election day
- November 8, 1988
- District map
- Older district map (1982 to 1991)
Arizona Senate District 18, 1970 to 2024, 1988, every candidate Candidate Party Votes and share Share RepublicanLeo CorbetWon Republican 21,18758.3% DemocraticMadelene Vanarsdell Democratic 15,17741.7% - Votes for listed candidates
- 29,338
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1991)
Arizona Senate District 18, 1970 to 2024, 1986, every candidate Candidate Party Votes and share Share RepublicanTony WestWon(incumbent) Republican 19,28065.7% DemocraticBeverly G. Davis Democratic 10,05834.3% - Votes for listed candidates
- 27,190
- Election day
- November 6, 1984
- District map
- Older district map (1982 to 1991)
Arizona Senate District 18, 1970 to 2024, 1984, every candidate Candidate Party Votes and share Share RepublicanTony WestWon(incumbent) Republican 27,190100.0% - Votes for listed candidates
- 25,724
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1991)
Arizona Senate District 18, 1970 to 2024, 1982, every candidate Candidate Party Votes and share Share RepublicanTony WestWon Republican 16,71165.0% DemocraticBarry Becker Democratic 9,01335.0% - Votes for listed candidates
- 22,909
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1981)
Arizona Senate District 18, 1970 to 2024, 1980, every candidate Candidate Party Votes and share Share RepublicanLeo CorbetWon(incumbent) Republican 15,21166.4% DemocraticSheldon Zwerling Democratic 4,91321.4% LibertarianKathryn L. Oconnell Libertarian 2,78512.2% - Votes for listed candidates
- 16,505
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
Arizona Senate District 18, 1970 to 2024, 1978, every candidate Candidate Party Votes and share Share RepublicanLeo CorbetWon(incumbent) Republican 9,90160.0% DemocraticPhyllis Rowe Democratic 5,69134.5% LibertarianKathryn L. Oconnell Libertarian 9135.5% - Votes for listed candidates
- 23,753
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1981)
Arizona Senate District 18, 1970 to 2024, 1976, every candidate Candidate Party Votes and share Share RepublicanLeo CorbetWon(incumbent) Republican 13,98858.9% DemocraticPhyllis Rowe Democratic 9,76341.1% OtherHannah Shaw Other 20.0% - Votes for listed candidates
- 19,377
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
Arizona Senate District 18, 1970 to 2024, 1974, every candidate Candidate Party Votes and share Share RepublicanLeo CorbetWon(incumbent) Republican 10,78355.6% DemocraticH. E. Patterson Democratic 8,59444.4% - Votes for listed candidates
- 22,877
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
Arizona Senate District 18, 1970 to 2024, 1972, every candidate Candidate Party Votes and share Share RepublicanLeo CorbetWon(incumbent) Republican 15,63968.4% DemocraticZ. Winograd Democratic 7,23831.6% - Votes for listed candidates
- 15,167
- Election day
- November 3, 1970
- District map
- Older district map (1970 to 1971)
Arizona Senate District 18, 1970 to 2024, 1970, every candidate Candidate Party Votes and share Share RepublicanJoe Shaughnessy Jr.Won Republican 8,37055.2% DemocraticRay Johnson Democratic 6,79744.8%
- 2024: MEDSL 2024 official precinct returns (individual_states zips), retrieved Oct 28, 2026. Compiled by MIT Election Data and Science Lab (MEDSL) from official returns; not an official source
- 1970 to 2022: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), retrieved Oct 28, 2026. Compiled by Carl Klarner (Harvard Dataverse) from official returns; not an official source
Last contest in this district on file: 2024.
Download and cite
Cite this page
Election Wrld. (2026). Arizona State Senate District 18, election results 1970 to 2024. https://www.electionwrld.com/az/senate/18. Retrieved October 30, 2026.
Embed this seat
<iframe src="https://www.electionwrld.com/embed/az/senate/18" title="Arizona Senate District 18" width="100%" height="400" style="border:0;max-width:640px" loading="lazy"></iframe>
<p style="font-size:13px">Data: <a href="https://www.electionwrld.com">Election Wrld</a>, CC BY 4.0</p>Paste this into any web page. It shows the seat, its last result and the next election.
Sources
Sources: Census TIGERweb Legislative MapServer (120th CDs layer 0, 119th CDs layer 4, 2026 SLD upper layer 1 and lower layer 2) (US Census Bureau, public domain), retrieved Oct 28, 2026; Open Civic Data division identifiers (census_autogenerated us_sldl/us_sldu and openstates state files); also (sld-recent.json): Open Civic Data division identifiers (country-us) (CC0 (repository); also (sld-recent.json): CC0 1.0), retrieved Oct 28, 2026; Open States people (current) CSVs (CC0-1.0 (Open States people data)), retrieved Oct 28, 2026, compiled by Open States volunteers and staff (rosters from state legislature sites) from official returns, not an official source; MEDSL 2024 official precinct returns (individual_states zips) (Not stated in the GitHub repository (an earlier label said "MIT (repo)", which the repository does not support). MEDSL's Harvard Dataverse records are CC0 1.0, but these GitHub files were not checksum-matched to the Dataverse files, so CC0 is not claimed for them.), retrieved Oct 28, 2026, compiled by MIT Election Data and Science Lab (MEDSL) from official returns, not an official source; State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse) (CC0 1.0), retrieved Oct 28, 2026, compiled by Carl Klarner (Harvard Dataverse) from official returns, not an official source.
District id: ocd-division/country:us/state:az/sldu:18
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), MEDSL 2024 official precinct returnsData as of Oct 28, 2026