Texas State Senate District 21
Tue, Nov 3 · Represented by Judith Zaffirini Democratic · Member list as of Oct 28
Julie Dahlberg 35.9Judith Zaffirini 61.6
Last result · 2022 generalNo published poll names both candidates.
- Last election
- Judith Zaffirini (Democratic) won by 25.7 points, 2022
- On the 2026 ballot
- 2 candidates
Side by side
Left column: DahlbergRight column: Zaffirini
- Donor-based spectrum
- LiberalCentristConservativeDahlbergZaffirini
- Races
- None listed
- Won 13 of 13
- Years since first win
- Not available
- 40
How these are counted
The spectrum is a published research score, not our rating. How this works. Wins and losses count the races in our results files, the same as each profile.
More about this race
Candidates on the ballot
- Judith ZaffiriniIncumbentDemocratic
- Julie DahlbergRepublican
Source: sos.state.tx.us (PDF), dated Aug 28
All State Senate districts
- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
Map settings
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History (18 elections for this seat)
- Votes for listed candidates
- 210,913
- Election day
- November 8, 2022
- District map
- Older district map (2022)
Texas Senate District 21, 1970 to 2022, 2022, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 129,83261.6% RepublicanJulie Dahlberg Republican 75,79935.9% LibertarianArthur Dibianca Libertarian 5,2822.5% - Votes for listed candidates
- 278,814
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Texas Senate District 21, 1970 to 2022, 2020, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 167,67260.1% RepublicanFrank Pomeroy Republican 111,14239.9% - Votes for listed candidates
- 160,959
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Texas Senate District 21, 1970 to 2022, 2016, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 160,959100.0% - Votes for listed candidates
- 192,073
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Texas Senate District 21, 1970 to 2022, 2012, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 129,89467.6% RepublicanGrant Rostig Republican 56,03229.2% LibertarianJoseph Morse Libertarian 6,1473.2% - Votes for listed candidates
- 190,262
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
Texas Senate District 21, 1970 to 2022, 2008, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 129,80268.2% RepublicanLouis H. Bruni Republican 55,48029.2% LibertarianBarry L. Allison Libertarian 4,9802.6% - Votes for listed candidates
- 127,573
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
Texas Senate District 21, 1970 to 2022, 2004, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 127,573100.0% - Votes for listed candidates
- 107,332
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
Texas Senate District 21, 1970 to 2022, 2002, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 95,64489.1% LibertarianJeff Carruthers Libertarian 11,68810.9% - Votes for listed candidates
- 159,636
- Election day
- November 7, 2000
- District map
- Older district map (1994 to 2001)
Texas Senate District 21, 1970 to 2022, 2000, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 106,08966.5% RepublicanDavid Swift Republican 53,54733.5% - Votes for listed candidates
- 138,654
- Election day
- November 5, 1996
- District map
- Older district map (1994 to 2001)
Texas Senate District 21, 1970 to 2022, 1996, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 91,95666.3% RepublicanJames C. Whitworth Republican 46,69833.7% - Votes for listed candidates
- 103,653
- Election day
- November 8, 1994
- District map
- Older district map (1994 to 2001)
Texas Senate District 21, 1970 to 2022, 1994, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 71,02968.5% RepublicanFernando Cantu Republican 32,62431.5% - Votes for listed candidates
- 111,398
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 1993)
Texas Senate District 21, 1970 to 2022, 1992, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 111,398100.0% - Votes for listed candidates
- 119,144
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1991)
Texas Senate District 21, 1970 to 2022, 1990, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon(incumbent) Democratic 81,36368.3% RepublicanLarry Vick Republican 37,78131.7% - Votes for listed candidates
- 114,368
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1991)
Texas Senate District 21, 1970 to 2022, 1986, every candidate Candidate Party Votes and share Share DemocraticJudith ZaffiriniWon Democratic 59,57752.1% RepublicanBennie Bock Republican 54,79147.9% - Votes for listed candidates
- 66,233
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1991)
Texas Senate District 21, 1970 to 2022, 1982, every candidate Candidate Party Votes and share Share DemocraticJohn TraegerWon(incumbent) Democratic 66,233100.0% - Votes for listed candidates
- 88,779
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
Texas Senate District 21, 1970 to 2022, 1978, every candidate Candidate Party Votes and share Share DemocraticJohn A. TraegerWon(incumbent) Democratic 52,93759.6% RepublicanH. R. Yeary Republican 27,93431.5% OtherJuan S. Hernandez Other 7,9088.9% - Votes for listed candidates
- 60,188
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
Texas Senate District 21, 1970 to 2022, 1974, every candidate Candidate Party Votes and share Share DemocraticJohn TraegerWon(incumbent) Democratic 44,96174.7% RepublicanPatrick L. Searcy Republican 15,22625.3% Scattered write-ins Write-in 10.0% - Votes for listed candidates
- 73,318
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
Texas Senate District 21, 1970 to 2022, 1972, every candidate Candidate Party Votes and share Share DemocraticJohn TraegerWon Democratic 73,318100.0% - Votes for listed candidates
- 48,796
- Election day
- November 3, 1970
- District map
- Older district map (1966 to 1971)
Texas Senate District 21, 1970 to 2022, 1970, every candidate Candidate Party Votes and share Share DemocraticWayne ConnallyWon(incumbent) Democratic 48,781100.0% Scattered write-ins Write-in 150.0%
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: 2022.
Download and cite
Cite this page
Election Wrld. (2026). Texas State Senate District 21, election results 1970 to 2022. https://www.electionwrld.com/tx/senate/21. Retrieved October 31, 2026.
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<iframe src="https://www.electionwrld.com/embed/tx/senate/21" title="Texas 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; 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:tx/sldu:21
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), DIME (ODC-BY)Data as of Oct 28, 2026