Iowa State House District 18

Tue, Nov 3 · Represented by Tom Moore Republican · Member list as of Oct 28

Tom MooreRepublican · Incumbent4 years since first win

Tom Moore 73.7Tripp Narup 26.0

Last result · 2024 generalNo published poll names both candidates.

Tripp NarupDemocratic

Last election: Tom Moore (Republican) won by 47.7 points, 2024
On the 2026 ballot: 2 candidates

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Side by side

Left column: MooreRight column: Narup

Donor-based spectrum: LiberalCentristConservativeMooreNo published score for Narup
Races: None listed; Won 0 of 1
Years since first win: 4; Not available

How these are counted

The spectrum is a published research score, not our rating. How this works. Wins and losses count the races in our results files, the same as each profile.

More about this race

Candidates on the ballot

Tripp NarupDemocratic
Tom MooreIncumbentRepublican

Source: sos.iowa.gov (PDF), dated Aug 19

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Official results for Iowa

History (28 elections for this seat)

Votes for listed candidates: 15,149
Election day: November 5, 2024
District map: Older district map (2022 to 2024)

Iowa House of Representatives District 18, 1970 to 2024, 2024, every candidate
Candidate	Party	Votes and share	Share
RepublicanTom MooreWonName as filed: Thomas Jay Moore	Republican	11,16573.7%	73.7%
DemocraticTripp Narup	Democratic	3,93826.0%	26.0%
Scattered write-ins	Write-in	460.3%	0.3%

Votes for listed candidates: 9,790
Election day: November 8, 2022
District map: Older district map (2022)

Iowa House of Representatives District 18, 1970 to 2024, 2022, every candidate
Candidate	Party	Votes and share	Share
RepublicanTom MooreWon(incumbent)Name as filed: Thomas Jay Moore	Republican	9,63098.4%	98.4%
Scattered write-ins	Write-in	1601.6%	1.6%

Votes for listed candidates: 14,098
Election day: November 3, 2020
District map: Older district map (2012 to 2021)

Iowa House of Representatives District 18, 1970 to 2024, 2020, every candidate
Candidate	Party	Votes and share	Share
RepublicanSteven HoltWon(incumbent)	Republican	10,32173.2%	73.2%
DemocraticDamon Hopkins	Democratic	3,76226.7%	26.7%
Scattered write-ins	Write-in	150.1%	0.1%

Iowa House of Representatives District 18, 1970 to 2024, 2018, every candidate
Candidate	Party	Votes and share	Share
RepublicanSteven HoltWon(incumbent)	Republican	8,316100.0%	100.0%

Votes for listed candidates: 10,742
Election day: November 8, 2016
District map: Older district map (2012 to 2021)

Iowa House of Representatives District 18, 1970 to 2024, 2016, every candidate
Candidate	Party	Votes and share	Share
RepublicanSteven HoltWon(incumbent)	Republican	10,60398.7%	98.7%
Scattered write-ins	Write-in	1391.3%	1.3%

Votes for listed candidates: 9,275
Election day: November 4, 2014
District map: Older district map (2012 to 2021)

Iowa House of Representatives District 18, 1970 to 2024, 2014, every candidate
Candidate	Party	Votes and share	Share
RepublicanSteven HoltWon	Republican	6,40569.1%	69.1%
DemocraticPaul Thelen	Democratic	2,86730.9%	30.9%
Scattered write-ins	Write-in	30.0%	0.0%

Votes for listed candidates: 12,810
Election day: November 6, 2012
District map: Older district map (2012 to 2021)

Iowa House of Representatives District 18, 1970 to 2024, 2012, every candidate
Candidate	Party	Votes and share	Share
RepublicanJason SchultzWon(incumbent)	Republican	8,35165.2%	65.2%
DemocraticKasey Friedrichsen	Democratic	4,40634.4%	34.4%
Scattered write-ins	Write-in	530.4%	0.4%

Votes for listed candidates: 10,985
Election day: November 2, 2010
District map: Older district map (2002 to 2011)

Iowa House of Representatives District 18, 1970 to 2024, 2010, every candidate
Candidate	Party	Votes and share	Share
DemocraticAndrew WentheWon(incumbent)	Democratic	5,49950.1%	50.1%
RepublicanRoger Arthur	Republican	5,46349.7%	49.7%
Scattered write-ins	Write-in	230.2%	0.2%

Votes for listed candidates: 14,031
Election day: November 4, 2008
District map: Older district map (2002 to 2011)

Iowa House of Representatives District 18, 1970 to 2024, 2008, every candidate
Candidate	Party	Votes and share	Share
DemocraticAndrew WentheWon(incumbent)	Democratic	7,86156.0%	56.0%
RepublicanAustin Lorenzen	Republican	6,17044.0%	44.0%

Votes for listed candidates: 10,943
Election day: November 7, 2006
District map: Older district map (2002 to 2011)

Iowa House of Representatives District 18, 1970 to 2024, 2006, every candidate
Candidate	Party	Votes and share	Share
DemocraticAndrew WentheWon	Democratic	6,16056.3%	56.3%
RepublicanDavid Lalk(incumbent)	Republican	4,78343.7%	43.7%

Votes for listed candidates: 14,096
Election day: November 2, 2004
District map: Older district map (2002 to 2011)

Iowa House of Representatives District 18, 1970 to 2024, 2004, every candidate
Candidate	Party	Votes and share	Share
RepublicanDavid LalkWon(incumbent)	Republican	7,68554.5%	54.5%
DemocraticStephen R. Milder	Democratic	6,41145.5%	45.5%

Votes for listed candidates: 10,479
Election day: November 5, 2002
District map: Older district map (2002 to 2011)

Iowa House of Representatives District 18, 1970 to 2024, 2002, every candidate
Candidate	Party	Votes and share	Share
RepublicanDavid LalkWon	Republican	5,46752.2%	52.2%
DemocraticJackie Reeder	Democratic	5,01247.8%	47.8%

Votes for listed candidates: 11,941
Election day: November 7, 2000
District map: Older district map (1992 to 2001)

Iowa House of Representatives District 18, 1970 to 2024, 2000, every candidate
Candidate	Party	Votes and share	Share
RepublicanSteve SukupWon(incumbent)	Republican	7,53663.1%	63.1%
DemocraticSharon A. Treinen	Democratic	4,40536.9%	36.9%

Votes for listed candidates: 9,627
Election day: November 3, 1998
District map: Older district map (1992 to 2001)

Iowa House of Representatives District 18, 1970 to 2024, 1998, every candidate
Candidate	Party	Votes and share	Share
RepublicanSteve SukupWon(incumbent)	Republican	6,88571.5%	71.5%
DemocraticAlan L. Reiter	Democratic	2,74228.5%	28.5%

Votes for listed candidates: 11,700
Election day: November 5, 1996
District map: Older district map (1992 to 2001)

Iowa House of Representatives District 18, 1970 to 2024, 1996, every candidate
Candidate	Party	Votes and share	Share
RepublicanSteve SukupWon(incumbent)	Republican	7,24661.9%	61.9%
DemocraticWayne G. Zeigler	Democratic	4,45438.1%	38.1%

Votes for listed candidates: 10,327
Election day: November 8, 1994
District map: Older district map (1992 to 2001)

Iowa House of Representatives District 18, 1970 to 2024, 1994, every candidate
Candidate	Party	Votes and share	Share
RepublicanSteve SukupWon	Republican	7,09568.7%	68.7%
DemocraticIngvert Appel	Democratic	3,23231.3%	31.3%

Votes for listed candidates: 12,262
Election day: November 3, 1992
District map: Older district map (1992 to 2001)

Iowa House of Representatives District 18, 1970 to 2024, 1992, every candidate
Candidate	Party	Votes and share	Share
RepublicanClark E. McNealWon(incumbent)	Republican	7,37460.1%	60.1%
DemocraticJulia Stewart	Democratic	4,88839.9%	39.9%

Votes for listed candidates: 10,004
Election day: November 6, 1990
District map: Older district map (1982 to 1991)

Iowa House of Representatives District 18, 1970 to 2024, 1990, every candidate
Candidate	Party	Votes and share	Share
RepublicanClark E. McNealWon	Republican	5,27052.7%	52.7%
DemocraticRobert Fuller(incumbent)	Democratic	4,73447.3%	47.3%

Votes for listed candidates: 11,490
Election day: November 8, 1988
District map: Older district map (1982 to 1991)

Iowa House of Representatives District 18, 1970 to 2024, 1988, every candidate
Candidate	Party	Votes and share	Share
DemocraticRobert FullerWon(incumbent)	Democratic	5,97752.0%	52.0%
RepublicanClark E. McNeal	Republican	5,51348.0%	48.0%

Votes for listed candidates: 9,814
Election day: November 4, 1986
District map: Older district map (1982 to 1991)

Iowa House of Representatives District 18, 1970 to 2024, 1986, every candidate
Candidate	Party	Votes and share	Share
DemocraticRobert FullerWon	Democratic	4,97250.7%	50.7%
RepublicanLisle Cook	Republican	4,84249.3%	49.3%

Votes for listed candidates: 12,447
Election day: November 6, 1984
District map: Older district map (1982 to 1991)

Iowa House of Representatives District 18, 1970 to 2024, 1984, every candidate
Candidate	Party	Votes and share	Share
RepublicanRichard W. WeldenWon(incumbent)	Republican	6,93855.7%	55.7%
DemocraticRobert Fuller	Democratic	5,50844.3%	44.3%
Scattered write-ins	Write-in	10.0%	0.0%

Votes for listed candidates: 6,373
Election day: November 2, 1982
District map: Older district map (1982 to 1991)

Iowa House of Representatives District 18, 1970 to 2024, 1982, every candidate
Candidate	Party	Votes and share	Share
RepublicanRichard W. WeldenWon(incumbent)	Republican	6,371100.0%	100.0%
Scattered write-ins	Write-in	20.0%	0.0%

Votes for listed candidates: 11,270
Election day: November 4, 1980
District map: Older district map (1972 to 1981)

Iowa House of Representatives District 18, 1970 to 2024, 1980, every candidate
Candidate	Party	Votes and share	Share
RepublicanDarrell HansonWon(incumbent)	Republican	6,38156.6%	56.6%
DemocraticHelene Hurley	Democratic	4,88943.4%	43.4%

Votes for listed candidates: 7,633
Election day: November 7, 1978
District map: Older district map (1972 to 1981)

Iowa House of Representatives District 18, 1970 to 2024, 1978, every candidate
Candidate	Party	Votes and share	Share
RepublicanDarrell HansonWon	Republican	4,32756.7%	56.7%
DemocraticWillis Rowell	Democratic	3,30643.3%	43.3%

Votes for listed candidates: 10,867
Election day: November 2, 1976
District map: Older district map (1972 to 1981)

Iowa House of Representatives District 18, 1970 to 2024, 1976, every candidate
Candidate	Party	Votes and share	Share
DemocraticTerry DyrlandWon(incumbent)	Democratic	5,45450.2%	50.2%
RepublicanReynold E. Busse	Republican	5,41349.8%	49.8%

Votes for listed candidates: 7,941
Election day: November 4, 1974
District map: Older district map (1972 to 1981)

Iowa House of Representatives District 18, 1970 to 2024, 1974, every candidate
Candidate	Party	Votes and share	Share
DemocraticTerry DyrlandWon	Democratic	4,19752.9%	52.9%
RepublicanHoward L. Dunlap	Republican	3,74447.1%	47.1%

Votes for listed candidates: 10,517
Election day: November 7, 1972
District map: Older district map (1972 to 1981)

Iowa House of Representatives District 18, 1970 to 2024, 1972, every candidate
Candidate	Party	Votes and share	Share
DemocraticHarold C. McCormickWon(incumbent)	Democratic	5,87755.9%	55.9%
RepublicanLary Sheffert	Republican	4,64044.1%	44.1%

Votes for listed candidates: 7,741
Election day: November 3, 1970
District map: Older district map (1970 to 1971)

Iowa House of Representatives District 18, 1970 to 2024, 1970, every candidate
Candidate	Party	Votes and share	Share
DemocraticKenneth D. ScottWon	Democratic	4,03152.1%	52.1%
RepublicanFloyd P. Edgington(incumbent)	Republican	3,60246.5%	46.5%
OtherLeo R. Warner	Other	1081.4%	1.4%

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.

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Election Wrld. (2026). Iowa State House District 18, election results 1970 to 2024. https://www.electionwrld.com/ia/house/18. 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.

District id: ocd-division/country:us/state:ia/sldl:18

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