Michigan State House District 103
Tue, Nov 3 · Represented by Betsy Coffia Democratic · Member list as of Oct 28
Betsy CoffiaDemocratic · Incumbent4 years since first winEdwin B. DeanRepublican
Last result · 2024 general: Betsy Coffia (D) 52.1, Lisa Trombley (R) 47.9
Show all 3 candidates on the ballot
Showing major-party nominees, incumbents and candidates with 5%+ in the latest poll or comparable fundraising.
- Betsy CoffiaIncumbentDemocratic
- Edwin B. DeanRepublican
- Michael GorbeLibertarian
- Earlier results
- Betsy Coffia (Democratic) won by 1.4 points, 2022, older linesDaire Rendon (Republican) won by 42.0 points, 2020, older linesAll 29 elections
Side by side
Left column: CoffiaRight column: Dean
- Donor-based spectrum
- LiberalCentristConservativeCoffiaNo published score for Dean
How these are counted
The spectrum is a published research score, not our rating. How this works.
Past results
- Votes for listed candidates
- 64,622
- Election day
- November 5, 2024
- District map
- Same as today
Michigan House of Representatives District 103, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticBetsy CoffiaWon Democratic 33,66252.1% RepublicanLisa Trombley Republican 30,96047.9% - Votes for listed candidates
- 55,790
- Election day
- November 8, 2022
- District map
- Older district map (2022 to 2023)
Michigan House of Representatives District 103, 1968 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticBetsy CoffiaWon Democratic 27,80549.8% RepublicanJack Omalley(incumbent) Republican 27,04048.5% LibertarianCourtney Evans Libertarian 9451.7% - Votes for listed candidates
- 52,008
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Michigan House of Representatives District 103, 1968 to 2024, 2020, every candidate Candidate Party Votes and share Share RepublicanDaire RendonWon(incumbent) Republican 36,93571.0% DemocraticZach Larson Democratic 15,07329.0% - Votes for listed candidates
- 40,127
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Michigan House of Representatives District 103, 1968 to 2024, 2018, every candidate Candidate Party Votes and share Share RepublicanDaire RendonWon(incumbent) Republican 25,96664.7% DemocraticTim Schaiberger Democratic 14,16135.3%
- 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
Last contest in this district on file: 2024.
All elections (29 for this seat)
- Votes for listed candidates
- 64,622
- Election day
- November 5, 2024
- District map
- Same as today
Michigan House of Representatives District 103, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticBetsy CoffiaWon Democratic 33,66252.1% RepublicanLisa Trombley Republican 30,96047.9% - Votes for listed candidates
- 55,790
- Election day
- November 8, 2022
- District map
- Older district map (2022 to 2023)
Michigan House of Representatives District 103, 1968 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticBetsy CoffiaWon Democratic 27,80549.8% RepublicanJack Omalley(incumbent) Republican 27,04048.5% LibertarianCourtney Evans Libertarian 9451.7% - Votes for listed candidates
- 52,008
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Michigan House of Representatives District 103, 1968 to 2024, 2020, every candidate Candidate Party Votes and share Share RepublicanDaire RendonWon(incumbent) Republican 36,93571.0% DemocraticZach Larson Democratic 15,07329.0% - Votes for listed candidates
- 40,127
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Michigan House of Representatives District 103, 1968 to 2024, 2018, every candidate Candidate Party Votes and share Share RepublicanDaire RendonWon(incumbent) Republican 25,96664.7% DemocraticTim Schaiberger Democratic 14,16135.3% - Votes for listed candidates
- 44,577
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Michigan House of Representatives District 103, 1968 to 2024, 2016, every candidate Candidate Party Votes and share Share RepublicanDaire L. RendonWon Republican 25,98858.3% DemocraticJordan Stancil Democratic 18,58941.7% - Votes for listed candidates
- 30,512
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2021)
Michigan House of Representatives District 103, 1968 to 2024, 2014, every candidate Candidate Party Votes and share Share RepublicanBruce RendonWon(incumbent) Republican 18,45760.5% DemocraticJames Cromwell Democratic 10,39634.1% IndependentBrad Richards Independent 1,6595.4% - Votes for listed candidates
- 44,140
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Michigan House of Representatives District 103, 1968 to 2024, 2012, every candidate Candidate Party Votes and share Share RepublicanBruce RendonWon(incumbent) Republican 23,30852.8% DemocraticLon Johnson Democratic 20,83247.2% - Votes for listed candidates
- 31,888
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2011)
Michigan House of Representatives District 103, 1968 to 2024, 2010, every candidate Candidate Party Votes and share Share RepublicanBruce RendonWon Republican 19,93062.5% DemocraticVan Sheltrown Democratic 11,95837.5% - Votes for listed candidates
- 44,930
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
Michigan House of Representatives District 103, 1968 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticJoel A. SheltrownWon(incumbent) Democratic 29,92766.6% RepublicanDave Ryan Republican 15,00333.4% - Votes for listed candidates
- 36,623
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2011)
Michigan House of Representatives District 103, 1968 to 2024, 2006, every candidate Candidate Party Votes and share Share DemocraticJoel A. SheltrownWon(incumbent) Democratic 25,15568.7% RepublicanRaymond W. Moore Republican 11,46831.3% - Votes for listed candidates
- 45,183
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
Michigan House of Representatives District 103, 1968 to 2024, 2004, every candidate Candidate Party Votes and share Share DemocraticJoel A. SheltrownWon Democratic 25,53556.5% RepublicanBruce R. Rendon Republican 19,64843.5% - Votes for listed candidates
- 32,028
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
Michigan House of Representatives District 103, 1968 to 2024, 2002, every candidate Candidate Party Votes and share Share DemocraticDale SheltrownWon(incumbent) Democratic 18,57158.0% RepublicanKen Carlson Republican 13,45742.0% - Votes for listed candidates
- 39,238
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
Michigan House of Representatives District 103, 1968 to 2024, 2000, every candidate Candidate Party Votes and share Share DemocraticDale SheltrownWon(incumbent) Democratic 26,54967.7% RepublicanDon Birgel Republican 12,68932.3% - Votes for listed candidates
- 31,156
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
Michigan House of Representatives District 103, 1968 to 2024, 1998, every candidate Candidate Party Votes and share Share DemocraticDale SheltrownWon Democratic 16,98354.5% RepublicanDon Birgel Republican 14,17345.5% - Votes for listed candidates
- 36,869
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
Michigan House of Representatives District 103, 1968 to 2024, 1996, every candidate Candidate Party Votes and share Share DemocraticTom AlleyWon(incumbent) Democratic 26,15670.9% RepublicanDon Birgel Republican 10,71329.1% - Votes for listed candidates
- 30,180
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
Michigan House of Representatives District 103, 1968 to 2024, 1994, every candidate Candidate Party Votes and share Share DemocraticTom AlleyWon(incumbent) Democratic 19,89865.9% RepublicanMary Good Republican 10,28234.1% - Votes for listed candidates
- 37,997
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
Michigan House of Representatives District 103, 1968 to 2024, 1992, every candidate Candidate Party Votes and share Share DemocraticTom AlleyWon(incumbent) Democratic 23,28861.3% RepublicanRodney Knepper Republican 14,70938.7% - Votes for listed candidates
- 30,395
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1991)
Michigan House of Representatives District 103, 1968 to 2024, 1990, every candidate Candidate Party Votes and share Share RepublicanRalph OstlingWon(incumbent) Republican 17,08656.2% DemocraticEllen Addington Democratic 13,30943.8% - Votes for listed candidates
- 41,083
- Election day
- November 8, 1988
- District map
- Older district map (1982 to 1991)
Michigan House of Representatives District 103, 1968 to 2024, 1988, every candidate Candidate Party Votes and share Share RepublicanRalph OstlingWon(incumbent) Republican 25,15761.2% DemocraticEllen Addington Democratic 15,92638.8% - Votes for listed candidates
- 28,116
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1991)
Michigan House of Representatives District 103, 1968 to 2024, 1986, every candidate Candidate Party Votes and share Share RepublicanRalph OstlingWon(incumbent) Republican 15,95256.7% DemocraticEllen Addington Democratic 12,16443.3% - Votes for listed candidates
- 40,116
- Election day
- November 6, 1984
- District map
- Older district map (1982 to 1991)
Michigan House of Representatives District 103, 1968 to 2024, 1984, every candidate Candidate Party Votes and share Share RepublicanRalph OstlingWon(incumbent) Republican 24,96662.2% DemocraticPeggy Diss Democratic 15,15037.8% - Votes for listed candidates
- 32,582
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1991)
Michigan House of Representatives District 103, 1968 to 2024, 1982, every candidate Candidate Party Votes and share Share RepublicanRalph OstlingWon(incumbent) Republican 18,85457.9% DemocraticLewis E. Cox Democratic 13,72842.1% - Votes for listed candidates
- 52,180
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1981)
Michigan House of Representatives District 103, 1968 to 2024, 1980, every candidate Candidate Party Votes and share Share RepublicanRalph OstlingWon(incumbent) Republican 32,54362.4% DemocraticBill Brauker Democratic 19,63337.6% Scattered write-ins Write-in 40.0% - Votes for listed candidates
- 40,155
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
Michigan House of Representatives District 103, 1968 to 2024, 1978, every candidate Candidate Party Votes and share Share RepublicanRalph OstlingWon(incumbent) Republican 23,02957.4% DemocraticBarbara J. Anderson Democratic 17,12342.6% Scattered write-ins Write-in 30.0% - Votes for listed candidates
- 45,931
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1981)
Michigan House of Representatives District 103, 1968 to 2024, 1976, every candidate Candidate Party Votes and share Share RepublicanRalph OstlingWon(incumbent) Republican 28,85762.8% DemocraticDean L. Welch Democratic 17,05637.1% Scattered write-ins Write-in 180.0% - Votes for listed candidates
- 32,267
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
Michigan House of Representatives District 103, 1968 to 2024, 1974, every candidate Candidate Party Votes and share Share RepublicanRalph OstlingWon(incumbent) Republican 18,97758.8% DemocraticJames M. Miller Democratic 13,26741.1% Scattered write-ins Write-in 230.1% - Votes for listed candidates
- 36,537
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
Michigan House of Representatives District 103, 1968 to 2024, 1972, every candidate Candidate Party Votes and share Share RepublicanRalph OstlingWon Republican 22,78062.4% DemocraticCharles A. Duerr Jr. Democratic 11,12630.4% OtherHerbert Friske Other 2,6317.2% - Votes for listed candidates
- 28,817
- Election day
- November 3, 1970
- District map
- Older district map (1964 to 1971)
Michigan House of Representatives District 103, 1968 to 2024, 1970, every candidate Candidate Party Votes and share Share RepublicanLouis K. CramptonWon Republican 18,20363.2% DemocraticThomas M. Bryon Democratic 10,61436.8% - Votes for listed candidates
- 32,957
- Election day
- November 5, 1968
- District map
- Older district map (1964 to 1971)
Michigan House of Representatives District 103, 1968 to 2024, 1968, every candidate Candidate Party Votes and share Share RepublicanNelson G. TisdaleWon(incumbent) Republican 22,57968.5% DemocraticWilliam G. Robbins Democratic 10,37831.5%
- 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
More about this race
Candidates on the ballot
- Betsy CoffiaIncumbentDemocratic
- Edwin B. DeanRepublican
- Michael GorbeLibertarian
Source: mi-boe.entellitrak.com, dated Oct 28
District map
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- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
Map settings
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Cite this page
Election Wrld. (2026). Michigan State House District 103, election results 1968 to 2024. https://www.electionwrld.com/mi/house/103. Retrieved October 31, 2026.
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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.
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), DIME (ODC-BY), MEDSL 2024 official precinct returnsData as of Oct 28, 2026