Colorado State Senate District 21
Tue, Nov 3 · Represented by Adrienne Benavidez Democratic · Member list as of Oct 28
No published poll names both candidates.The last winner we have no longer holds this seat, so that result isn't shown.
- Last election
- Dafna Michaelson Jenet (Democratic) won by 2.2 points, 2024
- On the 2026 ballot
- 2 candidates
Side by side
Left column: AlfredRight column: Benavidez
- Races
- Won 0 of 1
- None listed
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
- Frederick Alfred JrRepublican
- Adrienne BenavidezIncumbentDemocratic
Source: coloradosos.gov (XLSX), dated Sep 15
All State Senate districts
- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
Map settings
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History (16 elections for this seat)
- Votes for listed candidates
- 65,420
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2024)
Colorado Senate District 21, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticDafna Michaelson JenetWon Democratic 33,43851.1% RepublicanFrederick Alfred Jr. Republican 31,98248.9% - Votes for listed candidates
- 65,207
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Colorado Senate District 21, 1968 to 2024, 2020, every candidate Candidate Party Votes and share Share DemocraticDominick MorenoWon(incumbent) Democratic 41,43863.5% RepublicanMartin Mendez Republican 23,76936.5% - Votes for listed candidates
- 38,780
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Colorado Senate District 21, 1968 to 2024, 2016, every candidate Candidate Party Votes and share Share DemocraticDominick MorenoWon Democratic 38,42899.1% RepublicanKara Leach Palfy Republican 3520.9% - Votes for listed candidates
- 46,681
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Colorado Senate District 21, 1968 to 2024, 2012, every candidate Candidate Party Votes and share Share DemocraticJessie UlibarriWon Democratic 30,30864.9% RepublicanFrancine R. Bigelow Republican 16,37335.1% - Votes for listed candidates
- 56,036
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
Colorado Senate District 21, 1968 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticBetty BoydWon(incumbent) Democratic 33,30459.4% RepublicanNatalie Menten Republican 22,73240.6% - Votes for listed candidates
- 41,059
- Election day
- November 7, 2006
- Type
- Special election
- District map
- Older district map (2002 to 2011)
Colorado Senate District 21, 1968 to 2024, 2006, every candidate Candidate Party Votes and share Share DemocraticBetty BoydWon Democratic 23,17556.4% RepublicanMatthew J. Knoedler Republican 17,88443.6% - Votes for listed candidates
- 52,199
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
Colorado Senate District 21, 1968 to 2024, 2004, every candidate Candidate Party Votes and share Share DemocraticDeanna HannaWon(incumbent) Democratic 31,04659.5% RepublicanTori Merritts Republican 21,15340.5% - Votes for listed candidates
- 38,171
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
Colorado Senate District 21, 1968 to 2024, 2000, every candidate Candidate Party Votes and share Share DemocraticDeanna HannaWon Democratic 20,70954.3% RepublicanPenn R. Pfiffner Republican 17,46245.8% - Votes for listed candidates
- 34,799
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
Colorado Senate District 21, 1968 to 2024, 1996, every candidate Candidate Party Votes and share Share DemocraticMichael F. FeeleyWon(incumbent) Democratic 18,19752.3% RepublicanGaron L. Reeves Republican 16,60247.7% - Votes for listed candidates
- 41,966
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
Colorado Senate District 21, 1968 to 2024, 1992, every candidate Candidate Party Votes and share Share DemocraticMichael F. FeeleyWon Democratic 23,86856.9% RepublicanLynn M. Watwood Jr. Republican 18,09843.1% - Votes for listed candidates
- 28,899
- Election day
- November 8, 1988
- District map
- Older district map (1982 to 1991)
Colorado Senate District 21, 1968 to 2024, 1988, every candidate Candidate Party Votes and share Share RepublicanBonnie J. AllisonWon Republican 28,899100.0% - Votes for listed candidates
- 37,594
- Election day
- November 6, 1984
- District map
- Older district map (1982 to 1991)
Colorado Senate District 21, 1968 to 2024, 1984, every candidate Candidate Party Votes and share Share RepublicanJim LeeWon Republican 21,16656.3% DemocraticKirk P. Brady Democratic 16,42843.7% - Votes for listed candidates
- 33,853
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1981)
Colorado Senate District 21, 1968 to 2024, 1980, every candidate Candidate Party Votes and share Share RepublicanJ. Robert AllshouseWon(incumbent) Republican 18,03553.3% DemocraticGerard Frank Democratic 15,81846.7% - Votes for listed candidates
- 28,215
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1981)
Colorado Senate District 21, 1968 to 2024, 1976, every candidate Candidate Party Votes and share Share RepublicanJ. Robert AllshouseWon(incumbent) Republican 16,04556.9% DemocraticSteele Democratic 12,17043.1% - Votes for listed candidates
- 21,449
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
Colorado Senate District 21, 1968 to 2024, 1972, every candidate Candidate Party Votes and share Share RepublicanJ. Robert AllshouseWon Republican 13,54463.1% DemocraticCordelle H. Brooner Democratic 7,90536.9% - Votes for listed candidates
- 21,864
- Election day
- November 5, 1968
- District map
- Older district map (1968 to 1971)
Colorado Senate District 21, 1968 to 2024, 1968, every candidate Candidate Party Votes and share Share RepublicanHugh C. FowlerWon Republican 14,19564.9% DemocraticAlex S. Keller Democratic 7,66935.1%
- 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 2020: 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). Colorado State Senate District 21, election results 1968 to 2024. https://www.electionwrld.com/co/senate/21. Retrieved October 31, 2026.
Embed this seat
<iframe src="https://www.electionwrld.com/embed/co/senate/21" title="Colorado Senate District 21" 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:co/sldu:21
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), MEDSL 2024 official precinct returnsData as of Oct 28, 2026