Utah State Senate District 12
Tue, Nov 3 · Represented by Karen Kwan Democratic · Member list as of Oct 28
No published poll names both candidates.Last result · 2024 general: Karen Kwan (D) 56.5, Judy Weeks-Rohner (R) 43.5
- Last election
- Karen Kwan (Democratic) won by 13.0 points, 2024
- On the 2026 ballot
- 2 candidates
Side by side
Left column: KwanRight column: Tyler
- Races
- Won 1 of 1
- None listed
- Years since first win
- 2
- Not available
How these are counted
Wins and losses count the races in our results files, the same as each profile.
More about this race
Candidates on the ballot
- Deidre TylerRepublican
- Karen KwanIncumbentDemocratic
Source: utah.gov (PDF), dated Sep 21
All State Senate districts
- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
Map settings
Vote in Utah
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 (16 elections for this seat)
- Votes for listed candidates
- 32,618
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2024)
Utah Senate District 12, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticKaren KwanWon Democratic 18,41956.5% RepublicanJudy Weeks-Rohner Republican 14,19943.5% - Votes for listed candidates
- 23,501
- Election day
- November 8, 2022
- District map
- Older district map (2022)
Utah Senate District 12, 1968 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticKaren MayneWon(incumbent) Democratic 13,45057.2% RepublicanLinda L. Paulson Republican 10,05142.8% - Votes for listed candidates
- 27,460
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Utah Senate District 12, 1968 to 2024, 2018, every candidate Candidate Party Votes and share Share RepublicanDaniel W. ThatcherWon(incumbent) Republican 13,83550.4% DemocraticClare Collard Democratic 12,40045.2% GreenAbrian B. Velarde Green 1,2254.5% - Votes for listed candidates
- 14,546
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2021)
Utah Senate District 12, 1968 to 2024, 2014, every candidate Candidate Party Votes and share Share RepublicanDaniel W. ThatcherWon(incumbent) Republican 8,54858.8% DemocraticClare Collard Democratic 5,99841.2% - Votes for listed candidates
- 17,713
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2011)
Utah Senate District 12, 1968 to 2024, 2010, every candidate Candidate Party Votes and share Share RepublicanDaniel W. ThatcherWon Republican 9,43253.3% DemocraticBrent H. Goodfellow(incumbent) Democratic 8,28146.8% - Votes for listed candidates
- 16,127
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2011)
Utah Senate District 12, 1968 to 2024, 2006, every candidate Candidate Party Votes and share Share DemocraticBrent H. GoodfellowWon Democratic 7,85648.7% RepublicanChristy Achziger Republican 7,46646.3% OtherGrant Pearson Other 8055.0% - Votes for listed candidates
- 13,509
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
Utah Senate District 12, 1968 to 2024, 2002, every candidate Candidate Party Votes and share Share DemocraticRon AllenWon(incumbent) Democratic 6,65849.3% RepublicanJack Nielsen Republican 6,61249.0% OtherMillie Peterson(incumbent) Other 2391.8% - Votes for listed candidates
- 10,048
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
Utah Senate District 12, 1968 to 2024, 1998, every candidate Candidate Party Votes and share Share DemocraticMillie M. PetersonWon(incumbent) Democratic 5,61755.9% RepublicanJames L. Leigh Republican 4,43144.1% - Votes for listed candidates
- 11,731
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
Utah Senate District 12, 1968 to 2024, 1994, every candidate Candidate Party Votes and share Share DemocraticMillie M. PetersonWon(incumbent) Democratic 5,90750.4% RepublicanJohn D. Newman Republican 5,82449.6% - Votes for listed candidates
- 11,402
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1991)
Utah Senate District 12, 1968 to 2024, 1990, every candidate Candidate Party Votes and share Share DemocraticMillie M. PetersonWon Democratic 6,05753.1% RepublicanBill Barton(incumbent) Republican 5,34546.9% - Votes for listed candidates
- 10,685
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1991)
Utah Senate District 12, 1968 to 2024, 1986, every candidate Candidate Party Votes and share Share RepublicanWilliam BartonWon(incumbent) Republican 5,88955.1% DemocraticDel L. Buckner Democratic 4,79644.9% - Votes for listed candidates
- 13,819
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1991)
Utah Senate District 12, 1968 to 2024, 1982, every candidate Candidate Party Votes and share Share RepublicanWilliam BartonWon(incumbent) Republican 8,06158.3% DemocraticJerrald Conder Democratic 5,75841.7% - Votes for listed candidates
- 14,011
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
Utah Senate District 12, 1968 to 2024, 1978, every candidate Candidate Party Votes and share Share RepublicanBill BartonWon Republican 7,32452.3% DemocraticJerrald Conder Democratic 6,68747.7% - Votes for listed candidates
- 14,107
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
Utah Senate District 12, 1968 to 2024, 1974, every candidate Candidate Party Votes and share Share DemocraticCarl E. PetterssonWon(incumbent) Democratic 8,12357.6% RepublicanBill Barton Republican 5,49338.9% OtherRobert G. Porter Other 4913.5% - Votes for listed candidates
- 15,259
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
Utah Senate District 12, 1968 to 2024, 1972, every candidate Candidate Party Votes and share Share DemocraticCarl E. PetterssonWon(incumbent) Democratic 8,96658.8% RepublicanJay Staker Republican 6,29341.2% - Votes for listed candidates
- 17,538
- Election day
- November 5, 1968
- District map
- Older district map (1966 to 1971)
Utah Senate District 12, 1968 to 2024, 1968, every candidate Candidate Party Votes and share Share DemocraticMerrill JenkinsWon(incumbent) Democratic 10,29958.7% RepublicanClyde D. Lowe Republican 7,23941.3%
- 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
- 1968 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
Only part of this chamber is up in a given cycle. Which districts vote on which date is not on file. Last contest in this district on file: 2024.
Download and cite
Cite this page
Election Wrld. (2026). Utah State Senate District 12, election results 1968 to 2024. https://www.electionwrld.com/ut/senate/12. Retrieved October 31, 2026.
Embed this seat
<iframe src="https://www.electionwrld.com/embed/ut/senate/12" title="Utah Senate District 12" 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>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:ut/sldu:12
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), MEDSL 2024 official precinct returnsData as of Oct 28, 2026