Colorado State Senate District 18
Next vote Tue, Nov 3, 2026 · Represented by Judy Amabile Democratic · Member list as of Oct 28
This seat has no race on the official 2026 list.
- Last election
- Judy Amabile (Democratic) won by 81.0 points, 2024
More about this seat
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- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
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History (14 elections for this seat)
- Votes for listed candidates
- 80,854
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2024)
Colorado Senate District 18, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticJudy AmabileWon Democratic 73,15090.5% OtherGary Swing Other 7,7049.5% - Votes for listed candidates
- 90,785
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Colorado Senate District 18, 1968 to 2024, 2020, every candidate Candidate Party Votes and share Share DemocraticSteve FenbergWon(incumbent) Democratic 75,26182.9% RepublicanPeg Cage Republican 15,52417.1% - Votes for listed candidates
- 85,169
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Colorado Senate District 18, 1968 to 2024, 2016, every candidate Candidate Party Votes and share Share DemocraticStephen FenbergWon Democratic 67,79979.6% RepublicanM. Peter Spraitz Republican 17,37020.4% - Votes for listed candidates
- 85,046
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Colorado Senate District 18, 1968 to 2024, 2012, every candidate Candidate Party Votes and share Share DemocraticRollie HeathWon(incumbent) Democratic 66,61978.3% RepublicanBarry P. Thoma Republican 18,42721.7% - Votes for listed candidates
- 55,141
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
Colorado Senate District 18, 1968 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticRollie HeathWon Democratic 55,141100.0% - Votes for listed candidates
- 66,788
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
Colorado Senate District 18, 1968 to 2024, 2004, every candidate Candidate Party Votes and share Share DemocraticRon TupaWon(incumbent) Democratic 52,33278.4% RepublicanKrista Poch Republican 14,45621.6% - Votes for listed candidates
- 48,818
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
Colorado Senate District 18, 1968 to 2024, 2000, every candidate Candidate Party Votes and share Share DemocraticRon TupaWon Democratic 35,24172.2% RepublicanSteven M. Hatfield Republican 10,70321.9% LibertarianMark H. Nikkel Libertarian 1,6153.3% OtherYou Other 1,2592.6% - Votes for listed candidates
- 47,244
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
Colorado Senate District 18, 1968 to 2024, 1996, every candidate Candidate Party Votes and share Share DemocraticDorothy RupertWon Democratic 34,02972.0% RepublicanSusan Kolwicz Republican 13,21528.0% - Votes for listed candidates
- 41,519
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
Colorado Senate District 18, 1968 to 2024, 1992, every candidate Candidate Party Votes and share Share DemocraticJana MendezWon(incumbent) Democratic 41,519100.0% - Votes for listed candidates
- 42,987
- Election day
- November 8, 1988
- District map
- Older district map (1982 to 1991)
Colorado Senate District 18, 1968 to 2024, 1988, every candidate Candidate Party Votes and share Share DemocraticJana MendezWon(incumbent) Democratic 26,46061.5% RepublicanRobert M. Wells Republican 16,52738.5% - Votes for listed candidates
- 40,327
- Election day
- November 6, 1984
- District map
- Older district map (1982 to 1991)
Colorado Senate District 18, 1968 to 2024, 1984, every candidate Candidate Party Votes and share Share DemocraticJana MendezWon Democratic 21,06952.3% RepublicanBob Shonkwiler Republican 19,25847.8% - Votes for listed candidates
- 14,157
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
Colorado Senate District 18, 1968 to 2024, 1978, every candidate Candidate Party Votes and share Share DemocraticPolly BacabarraganWon Democratic 14,157100.0% - Votes for listed candidates
- 19,461
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
Colorado Senate District 18, 1968 to 2024, 1974, every candidate Candidate Party Votes and share Share DemocraticEldon W. CooperWon Democratic 14,31873.6% RepublicanD. F. Renshaw Sr. Republican 5,14326.4% - Votes for listed candidates
- 17,410
- Election day
- November 5, 1968
- District map
- Older district map (1968 to 1971)
Colorado Senate District 18, 1968 to 2024, 1968, every candidate Candidate Party Votes and share Share DemocraticDonald MacmanusWon Democratic 11,69867.2% RepublicanMoses Cisneros Republican 5,71232.8%
- 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.
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Cite this page
Election Wrld. (2026). Colorado State Senate District 18, election results 1968 to 2024. https://www.electionwrld.com/co/senate/18. Retrieved October 31, 2026.
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<iframe src="https://www.electionwrld.com/embed/co/senate/18" title="Colorado Senate District 18" 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:18
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), MEDSL 2024 official precinct returnsData as of Oct 28, 2026