Iowa State House District 42
Tue, Nov 3 · Represented by Heather Matson Democratic · Member list as of Oct 28Heather Matson isn’t on this ballot. Running for Iowa State Senate District 21
Heather StephensonRepublicanAmy TagliareniDemocratic
Last result · 2024 general: Heather Matson (D) 50.3, Heather Stephenson (R) 49.5
- Earlier results
- Heather Matson (Democratic) won by 0.2 points, 2022Kristin Sunde (Democratic) won by 12.2 points, 2020, older linesAll 28 elections
Past results
- Votes for listed candidates
- 18,094
- Election day
- November 5, 2024
- District map
- Same as today
Iowa House of Representatives District 42, 1970 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticHeather MatsonWon Democratic 9,10850.3% RepublicanHeather Stephenson Republican 8,95949.5% Scattered write-ins Write-in 270.1% - Votes for listed candidates
- 13,980
- Election day
- November 8, 2022
- District map
- Same as today
Iowa House of Representatives District 42, 1970 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticHeather MatsonWon Democratic 6,99150.0% RepublicanGarrett Gobble(incumbent) Republican 6,96849.8% Scattered write-ins Write-in 210.1% - Votes for listed candidates
- 18,028
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 42, 1970 to 2024, 2020, every candidate Candidate Party Votes and share Share DemocraticKristin SundeWon(incumbent) Democratic 10,10256.0% RepublicanAaron Sewell Republican 7,89643.8% Scattered write-ins Write-in 300.2% - Votes for listed candidates
- 15,501
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 42, 1970 to 2024, 2018, every candidate Candidate Party Votes and share Share DemocraticKristin SundeWon Democratic 8,34653.8% RepublicanPeter Cownie(incumbent) Republican 7,15546.2%
- 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.
All elections (28 for this seat)
- Votes for listed candidates
- 18,094
- Election day
- November 5, 2024
- District map
- Same as today
Iowa House of Representatives District 42, 1970 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticHeather MatsonWon Democratic 9,10850.3% RepublicanHeather Stephenson Republican 8,95949.5% Scattered write-ins Write-in 270.1% - Votes for listed candidates
- 13,980
- Election day
- November 8, 2022
- District map
- Same as today
Iowa House of Representatives District 42, 1970 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticHeather MatsonWon Democratic 6,99150.0% RepublicanGarrett Gobble(incumbent) Republican 6,96849.8% Scattered write-ins Write-in 210.1% - Votes for listed candidates
- 18,028
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 42, 1970 to 2024, 2020, every candidate Candidate Party Votes and share Share DemocraticKristin SundeWon(incumbent) Democratic 10,10256.0% RepublicanAaron Sewell Republican 7,89643.8% Scattered write-ins Write-in 300.2% - Votes for listed candidates
- 15,501
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 42, 1970 to 2024, 2018, every candidate Candidate Party Votes and share Share DemocraticKristin SundeWon Democratic 8,34653.8% RepublicanPeter Cownie(incumbent) Republican 7,15546.2% - Votes for listed candidates
- 17,039
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 42, 1970 to 2024, 2016, every candidate Candidate Party Votes and share Share RepublicanPeter CownieWon(incumbent) Republican 9,06553.2% DemocraticClaire Celsi Democratic 7,94846.6% Scattered write-ins Write-in 260.1% - Votes for listed candidates
- 12,354
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 42, 1970 to 2024, 2014, every candidate Candidate Party Votes and share Share RepublicanPeter CownieWon(incumbent) Republican 7,41960.0% DemocraticDaniel Fessler Democratic 4,91139.8% Scattered write-ins Write-in 240.2% - Votes for listed candidates
- 16,939
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 42, 1970 to 2024, 2012, every candidate Candidate Party Votes and share Share RepublicanPeter CownieWon(incumbent) Republican 9,58156.6% DemocraticMike McRae Democratic 7,34143.3% Scattered write-ins Write-in 170.1% - Votes for listed candidates
- 13,839
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2011)
Iowa House of Representatives District 42, 1970 to 2024, 2010, every candidate Candidate Party Votes and share Share RepublicanKim Nieland PearsonWon Republican 6,97550.4% DemocraticGeri D. Huser(incumbent) Democratic 6,84949.5% Scattered write-ins Write-in 150.1% - Votes for listed candidates
- 12,201
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
Iowa House of Representatives District 42, 1970 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticGeri HuserWon(incumbent) Democratic 12,201100.0% - Votes for listed candidates
- 8,493
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2011)
Iowa House of Representatives District 42, 1970 to 2024, 2006, every candidate Candidate Party Votes and share Share DemocraticGeri D. HuserWon(incumbent) Democratic 8,493100.0% - Votes for listed candidates
- 16,404
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
Iowa House of Representatives District 42, 1970 to 2024, 2004, every candidate Candidate Party Votes and share Share DemocraticGeri D. HuserWon(incumbent) Democratic 10,34563.1% RepublicanJeremy Walters Republican 6,05936.9% - Votes for listed candidates
- 11,781
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
Iowa House of Representatives District 42, 1970 to 2024, 2002, every candidate Candidate Party Votes and share Share DemocraticGeri D. HuserWon(incumbent) Democratic 7,44963.2% RepublicanJeremy Walters Republican 4,33236.8% - Votes for listed candidates
- 11,171
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
Iowa House of Representatives District 42, 1970 to 2024, 2000, every candidate Candidate Party Votes and share Share RepublicanJames VanfossenWon(incumbent) Republican 6,01453.8% DemocraticJohn E. White Democratic 4,82843.2% LibertarianRich Moroney Libertarian 3293.0% - Votes for listed candidates
- 7,788
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
Iowa House of Representatives District 42, 1970 to 2024, 1998, every candidate Candidate Party Votes and share Share RepublicanJames VanfossenWon(incumbent) Republican 4,33955.7% DemocraticJim Hayek Democratic 3,44944.3% - Votes for listed candidates
- 10,093
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
Iowa House of Representatives District 42, 1970 to 2024, 1996, every candidate Candidate Party Votes and share Share RepublicanJames VanfossenWon(incumbent) Republican 5,76857.1% DemocraticLauren M. Phelps Democratic 4,32542.9% - Votes for listed candidates
- 8,218
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
Iowa House of Representatives District 42, 1970 to 2024, 1994, every candidate Candidate Party Votes and share Share RepublicanJames VanfossenWon Republican 4,87859.4% DemocraticMatthew R. Wissing Democratic 3,34040.6% - Votes for listed candidates
- 12,170
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
Iowa House of Representatives District 42, 1970 to 2024, 1992, every candidate Candidate Party Votes and share Share RepublicanBob RaffertyWon(incumbent) Republican 6,24251.3% DemocraticMatthew R. Wissing(incumbent) Democratic 5,92848.7% - Votes for listed candidates
- 5,118
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1991)
Iowa House of Representatives District 42, 1970 to 2024, 1990, every candidate Candidate Party Votes and share Share DemocraticBob ArnouldWon(incumbent) Democratic 4,78393.5% IndependentPhilip L. Prichard Independent 3356.5% - Votes for listed candidates
- 10,282
- Election day
- November 8, 1988
- District map
- Older district map (1982 to 1991)
Iowa House of Representatives District 42, 1970 to 2024, 1988, every candidate Candidate Party Votes and share Share DemocraticBob ArnouldWon(incumbent) Democratic 7,06568.7% RepublicanJim Vancil Republican 3,21731.3% - Votes for listed candidates
- 7,257
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1991)
Iowa House of Representatives District 42, 1970 to 2024, 1986, every candidate Candidate Party Votes and share Share DemocraticBob ArnouldWon(incumbent) Democratic 4,80066.1% RepublicanPhilip Prichard Republican 2,45733.9% - Votes for listed candidates
- 11,537
- Election day
- November 6, 1984
- District map
- Older district map (1982 to 1991)
Iowa House of Representatives District 42, 1970 to 2024, 1984, every candidate Candidate Party Votes and share Share DemocraticBob ArnouldWon(incumbent) Democratic 7,29963.3% RepublicanCharley Kabala Republican 4,23836.7% - Votes for listed candidates
- 9,118
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1991)
Iowa House of Representatives District 42, 1970 to 2024, 1982, every candidate Candidate Party Votes and share Share DemocraticBob ArnouldWon(incumbent) Democratic 5,99165.7% RepublicanJoe Rodriguez Republican 3,12734.3% - Votes for listed candidates
- 15,892
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1981)
Iowa House of Representatives District 42, 1970 to 2024, 1980, every candidate Candidate Party Votes and share Share RepublicanReid W. CrawfordWon(incumbent) Republican 10,98569.1% DemocraticRobert D. Mohr Democratic 4,62029.1% LibertarianJohn Failor Libertarian 2871.8% - Votes for listed candidates
- 8,951
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
Iowa House of Representatives District 42, 1970 to 2024, 1978, every candidate Candidate Party Votes and share Share RepublicanReid W. CrawfordWon(incumbent) Republican 6,34970.9% DemocraticDiane Jetmund Democratic 2,60029.1% Scattered write-ins Write-in 20.0% - Votes for listed candidates
- 15,873
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1981)
Iowa House of Representatives District 42, 1970 to 2024, 1976, every candidate Candidate Party Votes and share Share RepublicanReid W. CrawfordWon(incumbent) Republican 9,15357.7% DemocraticKent Hall Democratic 6,72042.3% - Votes for listed candidates
- 10,264
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
Iowa House of Representatives District 42, 1970 to 2024, 1974, every candidate Candidate Party Votes and share Share RepublicanReid W. CrawfordWon(incumbent) Republican 6,03858.8% DemocraticLarry N. Larson Democratic 4,10840.0% OtherAlfonso Lane Other 1181.1% - Votes for listed candidates
- 13,013
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
Iowa House of Representatives District 42, 1970 to 2024, 1972, every candidate Candidate Party Votes and share Share RepublicanReid W. CrawfordWon Republican 6,81152.3% DemocraticLarry N. Larson(incumbent) Democratic 6,00846.2% OtherAlfonso Lane Other 1931.5% Scattered write-ins Write-in 10.0% - Votes for listed candidates
- 6,957
- Election day
- November 3, 1970
- District map
- Older district map (1970 to 1971)
Iowa House of Representatives District 42, 1970 to 2024, 1970, every candidate Candidate Party Votes and share Share DemocraticRussell L. WyckoffWon Democratic 3,66752.7% RepublicanDavid E. Weichman(incumbent) Republican 3,29047.3%
- 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
More about this race
No incumbent on the ballot here
Rep. Heather Matson is running for Iowa State Senate District 21.
Source: sos.iowa.gov (PDF), dated Aug 19
District map
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- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
Map settings
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Download and cite
Cite this page
Election Wrld. (2026). Iowa State House District 42, election results 1970 to 2024. https://www.electionwrld.com/ia/house/42. 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), MEDSL 2024 official precinct returnsData as of Oct 28, 2026