Arizona Senate District 12
State Senate District 12
Covers part of Maricopa County.
Who Holds This Seat
Running in 2026
Democrat · State Representative (AZ-HD-12)
- Ballot
- On the 2026 ballot
- Last Change
- Profile updated · Sep 24
- Raised
- Not on file
- Cash on Hand
- Not on file
No finance filing on record.
Independent
- Ballot
- On the 2026 ballot
- Last Change
- Profile updated · Sep 24
- Raised
- Not on file
- Cash on Hand
- Not on file
No finance filing on record.
The District
Includes Phoenix (part), Chandler (part) and Tempe (part).
53 precincts · District lines: State senate lines: U.S. Census Bureau (1:500,000 cartographic boundary) · Precinct lines: Maricopa County Elections Department, Voting Precincts (2022-2025); Pima County GIS, Voter Precincts — official county layers; Census 2020 VTDs kept in the other 13 counties; U.S. Census Bureau 2020 TIGER/Line VTDs where no official layer
Results in This District
| Contest | First | Second | Margin | Votes | Source |
|---|---|---|---|---|---|
| 2024 President53 precinctsArizona county official canvassesOfficial canvass | Harris / Walz (D)72,941 · 56.7% | Trump / Vance (R)52,728 · 41.0% | D+15.7 | 128,613 | Arizona county official canvassesOfficial canvass |
| 2024 U.S. Senate53 precinctsArizona county official canvassesOfficial canvass | Ruben Gallego (D)76,800 · 60.7% | Kari Lake (R)46,411 · 36.7% | D+24.0 | 126,621 | Arizona county official canvassesOfficial canvass |
| 2022 U.S. Senate53 precinctsArizona county official canvasses (Maricopa, Pima)Official canvass | Mark Kelly (D)63,385 · 61.6% | Blake Masters (R)37,564 · 36.5% | D+25.1 | 102,947 | Arizona county official canvasses (Maricopa, Pima)Official canvass |
| 2022 Governor53 precinctsArizona county official canvasses (Maricopa, Pima)Official canvass | Katie Hobbs (D)62,193 · 60.5% | Kari Lake (R)39,997 · 38.9% | D+21.6 | 102,814 | Arizona county official canvasses (Maricopa, Pima)Official canvass |
| 2020 President45 precinctsArizona Secretary of State — results detail (precinct level)Official results | Joseph Biden (D)83,850 · 58.8% | Donald J. Trump (R)56,350 · 39.5% | D+19.3 | 142,593 | Arizona Secretary of State — results detail (precinct level)Official results |
| 2020 U.S. Senate45 precinctsArizona Secretary of State — results detail (precinct level)Official results | Mark Kelly (D)84,684 · 59.9% | Martha McSally (R)56,672 · 40.1% | D+19.8 | 141,356 | Arizona Secretary of State — results detail (precinct level)Official results |
Totals add up the certified precinct results for the precincts inside today's district lines. A precinct split by the district line counts in full, or only in the district holding most of its voters where the linkage assigns it to one, and votes a county reported only countywide (some counties' absentee and early votes) are left out, so totals can differ from an official canvass.
Past Results
State Senate District 12
2024 Arizona General Election · Nov 5, 2024| Candidate | Party | Votes | Share |
|---|---|---|---|
| Denise "Mitzi" EpsteinDemocrat | Democrat | 70,499 | 58.1% |
| Cara ViciniRepublican | Republican | 50,796 | 41.8% |
| Write-in | 136 | 0.1% |
Official canvass · Arizona county official canvasses
Sources (2)
- Official canvass (county Boards of Supervisors)
- partial state coverage — counties: Apache, Coconino, Gila, Graham, Maricopa, Pima, Pinal, Santa Cruz, Yuma, Greenlee (Greenlee County Board of Supervisors, Official Canvass 2024 General (certified 2024-11-19), precinct summary report), Cochise (Cochise County Elections, 2024 General Statement of Votes Cast - Precinct Summary Results Report (official))
State Senate District 12
2022 Arizona General Election · Nov 8, 2022| Candidate | Party | Votes | Share |
|---|---|---|---|
| Denise "Mitzi" EpsteinDemocrat | Democrat | 58,349 | 58.1% |
| David Wayne RichardsonRepublican | Republican | 42,008 | 41.8% |
| Write-in | 80 | 0.1% |
Official canvass (county Boards of Supervisors); partial state coverage — counties: Coconino, Gila, Maricopa, Pima, Pinal · Arizona county official canvasses
State Senate District 12
2020 Arizona General Election · Nov 3, 2020| Candidate | Party | Votes | Share |
|---|---|---|---|
| Warren PetersenRepublican | Republican | 96,149 | 61.6% |
| Lynsey RobinsonDemocrat | Democrat | 59,852 | 38.4% |
Official results (Arizona Secretary of State precinct detail file, after county canvasses; state canvass 2020-11-30) · Arizona Secretary of State — results detail