Iowa State House District 38
Tue, Nov 3 · No member listed. The member list shows this seat as vacant or leaves it blank.
Brad MaggDemocraticMatthew OlesonRepublican
No published poll names both candidates.Last result · 2024 general: Jon Dunwell (R) 55.8, Brad Magg (D) 44.2No current holder is listed. This is the last result, not who sits there now.
- Last election
- Jon Dunwell (Republican) won by 11.6 points, 2024
- On the 2026 ballot
- 2 candidates
Side by side
Left column: MaggRight column: Oleson
- Races
- Won 0 of 1
- None listed
How these are counted
Wins and losses count the races in our results files, the same as each profile.
More about this race
Candidates on the ballot
- Brad MaggDemocratic
- Matthew OlesonRepublican
Source: sos.iowa.gov (PDF), dated Aug 19
All State House districts
Select a shape for details. Arrow keys move between shapes.
- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
Map settings
Vote in Iowa
Trouble voting? Election Protection hotline: 866-OUR-VOTE. A nonpartisan coalition of civil-rights and voting-rights groups, not a government service. 866ourvote.org
History (28 elections for this seat)
- Votes for listed candidates
- 16,207
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2024)
Iowa House of Representatives District 38, 1970 to 2024, 2024, every candidate Candidate Party Votes and share Share RepublicanJon DunwellWon Republican 9,03555.8% DemocraticBrad Magg Democratic 7,16444.2% Scattered write-ins Write-in 80.1% - Votes for listed candidates
- 12,276
- Election day
- November 8, 2022
- District map
- Older district map (2022)
Iowa House of Representatives District 38, 1970 to 2024, 2022, every candidate Candidate Party Votes and share Share RepublicanJon DunwellWon Republican 7,15858.3% DemocraticErick Zehr Democratic 4,61237.6% LibertarianMichael Wood Libertarian 5034.1% Scattered write-ins Write-in 30.0% - Votes for listed candidates
- 20,033
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 38, 1970 to 2024, 2020, every candidate Candidate Party Votes and share Share RepublicanGarrett GobbleWon Republican 10,08450.3% DemocraticHeather Matson(incumbent) Democratic 9,92749.5% Scattered write-ins Write-in 220.1% - Votes for listed candidates
- 15,926
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 38, 1970 to 2024, 2018, every candidate Candidate Party Votes and share Share DemocraticHeather MatsonWon Democratic 8,21651.6% RepublicanKevin Koester(incumbent) Republican 7,71048.4% - Votes for listed candidates
- 16,878
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 38, 1970 to 2024, 2016, every candidate Candidate Party Votes and share Share RepublicanKevin KoesterWon(incumbent) Republican 8,79352.1% DemocraticHeather Matson Democratic 7,26443.0% LibertarianJeffrey Meyers Libertarian 6103.6% OtherBrett H. Nelson Other 1831.1% Scattered write-ins Write-in 280.2% - Votes for listed candidates
- 11,620
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 38, 1970 to 2024, 2014, every candidate Candidate Party Votes and share Share RepublicanKevin KoesterWon(incumbent) Republican 6,90959.5% DemocraticChristine Sherrod Democratic 4,69540.4% Scattered write-ins Write-in 160.1% - Votes for listed candidates
- 15,903
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Iowa House of Representatives District 38, 1970 to 2024, 2012, every candidate Candidate Party Votes and share Share RepublicanKevin KoesterWon(incumbent) Republican 8,33452.4% DemocraticJohn Phoenix Democratic 6,86543.2% OtherBrett H. Nelson Other 6864.3% Scattered write-ins Write-in 180.1% - Votes for listed candidates
- 8,594
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2011)
Iowa House of Representatives District 38, 1970 to 2024, 2010, every candidate Candidate Party Votes and share Share DemocraticTyler OlsonWon(incumbent) Democratic 7,13683.0% OtherJason M. Marshall Other 1,41016.4% Scattered write-ins Write-in 480.6% - Votes for listed candidates
- 11,571
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
Iowa House of Representatives District 38, 1970 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticTyler OlsonWon(incumbent) Democratic 11,571100.0% - Votes for listed candidates
- 11,042
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2011)
Iowa House of Representatives District 38, 1970 to 2024, 2006, every candidate Candidate Party Votes and share Share DemocraticTyler OlsonWon Democratic 7,14864.7% RepublicanDon Palmer Republican 3,89435.3% - Votes for listed candidates
- 15,484
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
Iowa House of Representatives District 38, 1970 to 2024, 2004, every candidate Candidate Party Votes and share Share DemocraticRobert M. HoggWon(incumbent) Democratic 8,86557.3% RepublicanMary Meisterling Republican 6,61942.8% - Votes for listed candidates
- 11,137
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
Iowa House of Representatives District 38, 1970 to 2024, 2002, every candidate Candidate Party Votes and share Share DemocraticRobert M. HoggWon Democratic 5,86152.6% RepublicanDon Palmer Republican 5,27647.4% - Votes for listed candidates
- 12,618
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
Iowa House of Representatives District 38, 1970 to 2024, 2000, every candidate Candidate Party Votes and share Share DemocraticPolly BuktaWon(incumbent) Democratic 6,63152.5% RepublicanJames Cox Republican 5,98747.5% - Votes for listed candidates
- 9,361
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
Iowa House of Representatives District 38, 1970 to 2024, 1998, every candidate Candidate Party Votes and share Share DemocraticPolly BuktaWon(incumbent) Democratic 5,04053.8% RepublicanCarolyn Grimes Republican 4,32146.2% - Votes for listed candidates
- 12,252
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
Iowa House of Representatives District 38, 1970 to 2024, 1996, every candidate Candidate Party Votes and share Share DemocraticPolly BuktaWon Democratic 6,17450.4% RepublicanLarry Jepsen Republican 6,07849.6% - Votes for listed candidates
- 9,521
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
Iowa House of Representatives District 38, 1970 to 2024, 1994, every candidate Candidate Party Votes and share Share DemocraticC. Arthur OllieWon(incumbent) Democratic 5,34656.1% RepublicanSteven G. Dennison Republican 4,17543.9% - Votes for listed candidates
- 13,950
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
Iowa House of Representatives District 38, 1970 to 2024, 1992, every candidate Candidate Party Votes and share Share DemocraticC. Arthur OllieWon(incumbent) Democratic 7,31852.5% RepublicanBob Johnson(incumbent) Republican 6,63247.5% - Votes for listed candidates
- 5,282
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1991)
Iowa House of Representatives District 38, 1970 to 2024, 1990, every candidate Candidate Party Votes and share Share DemocraticC. Arthur OllieWon(incumbent) Democratic 5,282100.0% - Votes for listed candidates
- 11,492
- Election day
- November 8, 1988
- District map
- Older district map (1982 to 1991)
Iowa House of Representatives District 38, 1970 to 2024, 1988, every candidate Candidate Party Votes and share Share DemocraticC. Arthur OllieWon(incumbent) Democratic 6,36155.4% RepublicanRandy L. Werner Republican 5,13144.6% - Votes for listed candidates
- 8,506
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1991)
Iowa House of Representatives District 38, 1970 to 2024, 1986, every candidate Candidate Party Votes and share Share DemocraticC. Arthur OllieWon(incumbent) Democratic 4,44752.3% RepublicanRandy L. Werner Republican 4,05947.7% - Votes for listed candidates
- 12,597
- Election day
- November 6, 1984
- District map
- Older district map (1982 to 1991)
Iowa House of Representatives District 38, 1970 to 2024, 1984, every candidate Candidate Party Votes and share Share DemocraticC. Arthur OllieWon(incumbent) Democratic 7,55159.9% RepublicanVirginia Jones Republican 5,04640.1% - Votes for listed candidates
- 9,727
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1991)
Iowa House of Representatives District 38, 1970 to 2024, 1982, every candidate Candidate Party Votes and share Share DemocraticC. Arthur OllieWon Democratic 5,38955.4% RepublicanLois M. Miller Republican 4,33844.6% - Votes for listed candidates
- 12,101
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1981)
Iowa House of Representatives District 38, 1970 to 2024, 1980, every candidate Candidate Party Votes and share Share RepublicanRobert RenkenWon Republican 9,02374.6% DemocraticKenneth L. Slifka Democratic 3,07825.4% - Votes for listed candidates
- 6,284
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
Iowa House of Representatives District 38, 1970 to 2024, 1978, every candidate Candidate Party Votes and share Share RepublicanCooper EvansWon(incumbent) Republican 6,284100.0% - Votes for listed candidates
- 8,826
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1981)
Iowa House of Representatives District 38, 1970 to 2024, 1976, every candidate Candidate Party Votes and share Share RepublicanCooper EvansWon(incumbent) Republican 8,826100.0% - Votes for listed candidates
- 9,045
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
Iowa House of Representatives District 38, 1970 to 2024, 1974, every candidate Candidate Party Votes and share Share RepublicanCooper EvansWon Republican 5,86764.9% DemocraticRobert A. Himschoot Democratic 3,17835.1% - Votes for listed candidates
- 12,006
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
Iowa House of Representatives District 38, 1970 to 2024, 1972, every candidate Candidate Party Votes and share Share RepublicanHarold O. FischerWon(incumbent) Republican 8,43870.3% DemocraticHerbert P. Graeber Democratic 3,56829.7% - Votes for listed candidates
- 7,501
- Election day
- November 3, 1970
- District map
- Older district map (1970 to 1971)
Iowa House of Representatives District 38, 1970 to 2024, 1970, every candidate Candidate Party Votes and share Share DemocraticCharles J. UbanWon Democratic 3,89752.0% RepublicanDonald L. Lippold(incumbent) Republican 3,60448.0%
- 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). Iowa State House District 38, election results 1970 to 2024. https://www.electionwrld.com/ia/house/38. Retrieved October 30, 2026.
Embed this seat
<iframe src="https://www.electionwrld.com/embed/ia/house/38" title="Iowa House of Representatives District 38" 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>Paste this into any web page. It shows the seat, its last result and the next election.
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:ia/sldl:38
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), MEDSL 2024 official precinct returnsData as of Oct 28, 2026