Illinois State Senate District 20
Tue, Nov 3 · Represented by Graciela Guzmán Democratic · Member list as of Oct 28
One candidate on the printed ballot.
- Last election
- Graciela Guzmán (Democratic) won by 62.4 points, 2024
- On the 2026 ballot
- 1 candidate
More about this race
Candidates on the ballot
Uncontested
One candidate on the printed ballot.
- Graciela GuzmánIncumbentDemocratic
Party nominees only, not the certified ballot.
Source: elections.il.gov, dated Oct 28
All State Senate districts
- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
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History (18 elections for this seat)
- Votes for listed candidates
- 76,084
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2024)
Illinois Senate District 20, 1970 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticGraciela GuzmánWon Democratic 61,80381.2% RepublicanJason Proctor Republican 14,28118.8% - Votes for listed candidates
- 52,136
- Election day
- November 8, 2022
- District map
- Older district map (2022)
Illinois Senate District 20, 1970 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticCristina Pacione-ZayasWon Democratic 44,97286.3% RepublicanPatrycja Karlin Republican 7,16413.7% - Votes for listed candidates
- 55,151
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Illinois Senate District 20, 1970 to 2024, 2018, every candidate Candidate Party Votes and share Share DemocraticIris Y. MartinezWon(incumbent) Democratic 55,151100.0% - Votes for listed candidates
- 60,418
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Illinois Senate District 20, 1970 to 2024, 2016, every candidate Candidate Party Votes and share Share DemocraticIris Y. MartinezWon(incumbent) Democratic 60,418100.0% - Votes for listed candidates
- 47,761
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Illinois Senate District 20, 1970 to 2024, 2012, every candidate Candidate Party Votes and share Share DemocraticIris Y. MartinezWon(incumbent) Democratic 47,68899.8% Lawrence Ligas Write-in 730.1% - Votes for listed candidates
- 42,310
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
Illinois Senate District 20, 1970 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticIris Y. MartinezWon(incumbent) Democratic 42,310100.0% - Votes for listed candidates
- 38,815
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
Illinois Senate District 20, 1970 to 2024, 2004, every candidate Candidate Party Votes and share Share DemocraticIris Y. MartinezWon(incumbent) Democratic 38,815100.0% - Votes for listed candidates
- 26,410
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
Illinois Senate District 20, 1970 to 2024, 2002, every candidate Candidate Party Votes and share Share DemocraticIris Y. MartinezWon Democratic 26,410100.0% - Votes for listed candidates
- 57,005
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
Illinois Senate District 20, 1970 to 2024, 1998, every candidate Candidate Party Votes and share Share RepublicanBeverly FawellWon(incumbent) Republican 57,005100.0% - Votes for listed candidates
- 59,725
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
Illinois Senate District 20, 1970 to 2024, 1994, every candidate Candidate Party Votes and share Share RepublicanBeverly FawellWon(incumbent) Republican 45,06375.5% DemocraticLaird B. Nelson Democratic 14,66224.6% - Votes for listed candidates
- 90,662
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
Illinois Senate District 20, 1970 to 2024, 1992, every candidate Candidate Party Votes and share Share RepublicanBeverly FawellWon(incumbent) Republican 63,64070.2% DemocraticLaird B. Nelson Democratic 24,41326.9% LibertarianKenneth Prazak Libertarian 2,6092.9% - Votes for listed candidates
- 61,790
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1991)
Illinois Senate District 20, 1970 to 2024, 1990, every candidate Candidate Party Votes and share Share RepublicanBeverly FawellWon(incumbent) Republican 41,26966.8% DemocraticDiane S. Rzeszewski Democratic 20,52133.2% - Votes for listed candidates
- 55,593
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1991)
Illinois Senate District 20, 1970 to 2024, 1986, every candidate Candidate Party Votes and share Share RepublicanBeverly FawellWon(incumbent) Republican 39,66371.3% DemocraticDaniel T. Smyth Democratic 15,93028.6% - Votes for listed candidates
- 60,460
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1991)
Illinois Senate District 20, 1970 to 2024, 1982, every candidate Candidate Party Votes and share Share RepublicanBeverly FawellWon Republican 42,21669.8% DemocraticStephen J. Pesch Democratic 18,24230.2% Scattered write-ins Write-in 20.0% - Votes for listed candidates
- 27,627
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
Illinois Senate District 20, 1970 to 2024, 1978, every candidate Candidate Party Votes and share Share DemocraticJohn A. Darco Jr.Won(incumbent) Democratic 27,627100.0% - Votes for listed candidates
- 40,275
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1981)
Illinois Senate District 20, 1970 to 2024, 1976, every candidate Candidate Party Votes and share Share DemocraticJohn A. Darco Jr.Won Democratic 35,03587.0% RepublicanHelen C. Baker Republican 5,24013.0% - Votes for listed candidates
- 42,597
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
Illinois Senate District 20, 1970 to 2024, 1972, every candidate Candidate Party Votes and share Share DemocraticSam RomanoWon(incumbent) Democratic 35,88284.2% RepublicanDan Leopold Republican 6,71515.8% - Votes for listed candidates
- 32,184
- Election day
- November 3, 1970
- District map
- Older district map (1966 to 1971)
Illinois Senate District 20, 1970 to 2024, 1970, every candidate Candidate Party Votes and share Share DemocraticSam RomanoWon(incumbent) Democratic 28,13587.4% RepublicanDan Leopold Republican 4,04912.6%
- 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
- 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: 2024.
Download and cite
Cite this page
Election Wrld. (2026). Illinois State Senate District 20, election results 1970 to 2024. https://www.electionwrld.com/il/senate/20. Retrieved October 31, 2026.
Embed this seat
<iframe src="https://www.electionwrld.com/embed/il/senate/20" title="Illinois Senate District 20" 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:il/sldu:20
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), MEDSL 2024 official precinct returnsData as of Oct 28, 2026