Utah State Senate seat · lines in effect since 2022
Utah Senate District 12
A district of about 127,000 people, 37% Hispanic, 17% of adults with a bachelor's degree. It votes D+7.4 relative to the nation for president.
Where it sits among all 29 seats
Every Utah State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2022 | 2024 | 2026 | |
|---|---|---|---|
| U.S. Senate | No race | R+0.4 | No race |
| Governor | No race | R+3.7 | No race |
| Utah State Senate | D+14.5 | D+12.9 | D+36.1 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: Utah Lieutenant Governor's OfficeUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 29 seats. Small marks are other seats in Utah. The black marker is District 12.
Lower than 96% of seats.
Lower than 57% of seats.
Higher than 96% of seats.
Higher than 89% of seats.
Higher than 75% of seats.
Densest of 29 seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean. 1 of the 4 flipped this year.
District 1046% HispanicD+10.6Not up in 2026District 16
25% Hispanic · 27% college gradsR+6.6Not up in 2026District 5
22% Hispanic · 28% college gradsR+12.5Flipped DDistrict 15
42% college gradsD+18.0Not up in 2026
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Who has held it
These lines took effect in 2022.
- Karen Kwan (D)
2025– · Won 2024 by 12.9, 2026 by 36.1 - Karen Mayne (D)
2023–2025 · Won 2022 by 14.5
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)