Iowa State Senate District 31

Tue, Nov 3 · Represented by Bill Dotzler Democratic (not a candidate in 2026) · Member list as of Oct 28

Timi Brown-PowersDemocratic12 years since first win

One candidate on the printed ballot.

Last election: Bill Dotzler (Democratic) was unopposed, 2022
On the 2026 ballot: 1 candidate

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More about this race

Candidates on the ballot

UncontestedOpen seat

One candidate on the printed ballot. The current holder, Bill Dotzler, is not on the candidate list.

Timi Brown-PowersDemocratic

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

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Official results for Iowa

History (16 elections for this seat)

Iowa Senate District 31, 1968 to 2022, 2022, every candidate
Candidate	Party	Votes and share	Share
DemocraticBill DotzlerWon(incumbent)	Democratic	13,28296.9%	96.9%
Scattered write-ins	Write-in	4203.1%	3.1%

Iowa Senate District 31, 1968 to 2022, 2018, every candidate
Candidate	Party	Votes and share	Share
DemocraticBill DotzlerWon(incumbent)	Democratic	14,573100.0%	100.0%

Iowa Senate District 31, 1968 to 2022, 2014, every candidate
Candidate	Party	Votes and share	Share
DemocraticBill DotzlerWon(incumbent)	Democratic	13,38798.6%	98.6%
Scattered write-ins	Write-in	1861.4%	1.4%

Votes for listed candidates: 20,483
Election day: November 2, 2010
District map: Older district map (2002 to 2011)

Iowa Senate District 31, 1968 to 2022, 2010, every candidate
Candidate	Party	Votes and share	Share
DemocraticMatt McCoyWon(incumbent)	Democratic	13,38565.3%	65.3%
RepublicanDave Leach	Republican	7,06434.5%	34.5%
Scattered write-ins	Write-in	340.2%	0.2%

Votes for listed candidates: 20,217
Election day: November 7, 2006
District map: Older district map (2002 to 2011)

Iowa Senate District 31, 1968 to 2022, 2006, every candidate
Candidate	Party	Votes and share	Share
DemocraticMatt McCoyWon(incumbent)	Democratic	13,27665.7%	65.7%
RepublicanNicholas G. Vanpatten	Republican	6,94134.3%	34.3%

Votes for listed candidates: 21,237
Election day: November 5, 2002
District map: Older district map (2002 to 2011)

Iowa Senate District 31, 1968 to 2022, 2002, every candidate
Candidate	Party	Votes and share	Share
DemocraticMatt McCoyWon(incumbent)	Democratic	12,00456.5%	56.5%
RepublicanKaye Lozier	Republican	9,23343.5%	43.5%

Votes for listed candidates: 16,952
Election day: November 3, 1998
District map: Older district map (1992 to 2001)

Iowa Senate District 31, 1968 to 2022, 1998, every candidate
Candidate	Party	Votes and share	Share
DemocraticJohnie HammondWon(incumbent)	Democratic	9,42855.6%	55.6%
RepublicanNorman A. Luiken	Republican	7,52444.4%	44.4%

Iowa Senate District 31, 1968 to 2022, 1994, every candidate
Candidate	Party	Votes and share	Share
DemocraticJohnie HammondWon	Democratic	10,46259.6%	59.6%
RepublicanPaul D. Smith	Republican	7,10240.4%	40.4%

Votes for listed candidates: 17,654
Election day: November 6, 1990
District map: Older district map (1982 to 1991)

Iowa Senate District 31, 1968 to 2022, 1990, every candidate
Candidate	Party	Votes and share	Share
DemocraticEugene FraiseWon(incumbent)	Democratic	10,64560.3%	60.3%
RepublicanJohn H. Clark	Republican	7,00939.7%	39.7%

Iowa Senate District 31, 1968 to 2022, 1986, every candidate
Candidate	Party	Votes and share	Share
DemocraticEugene FraiseWon	Democratic	11,20160.6%	60.6%
RepublicanGuy W. Chase	Republican	7,29339.4%	39.4%

Iowa Senate District 31, 1968 to 2022, 1982, every candidate
Candidate	Party	Votes and share	Share
DemocraticLowell L. JunkinsWon(incumbent)	Democratic	11,597100.0%	100.0%
Scattered write-ins	Write-in	40.0%	0.0%

Votes for listed candidates: 13,210
Election day: November 7, 1978
District map: Older district map (1972 to 1981)

Iowa Senate District 31, 1968 to 2022, 1978, every candidate
Candidate	Party	Votes and share	Share
DemocraticEarl M. WillitsWon(incumbent)	Democratic	8,34963.2%	63.2%
RepublicanDonald Kerr	Republican	4,85936.8%	36.8%
Scattered write-ins	Write-in	20.0%	0.0%

Votes for listed candidates: 15,555
Election day: November 4, 1974
District map: Older district map (1972 to 1981)

Iowa Senate District 31, 1968 to 2022, 1974, every candidate
Candidate	Party	Votes and share	Share
DemocraticEarl M. WillitsWon(incumbent)	Democratic	9,70562.4%	62.4%
RepublicanJoseph B. Flatt	Republican	5,85037.6%	37.6%

Votes for listed candidates: 23,084
Election day: November 7, 1972
District map: Older district map (1972 to 1981)

Iowa Senate District 31, 1968 to 2022, 1972, every candidate
Candidate	Party	Votes and share	Share
DemocraticEarl M. WillitsWon	Democratic	13,57758.8%	58.8%
RepublicanCharles W. Vanderlinden Jr.	Republican	9,50641.2%	41.2%
Scattered write-ins	Write-in	10.0%	0.0%

Votes for listed candidates: 18,650
Election day: November 3, 1970
District map: Older district map (1970 to 1971)

Iowa Senate District 31, 1968 to 2022, 1970, every candidate
Candidate	Party	Votes and share	Share
RepublicanGeorge F. MilliganWon	Republican	11,48661.6%	61.6%
DemocraticHoward C. Reppert Jr.	Democratic	7,16438.4%	38.4%

Votes for listed candidates: 15,590
Election day: November 5, 1968
District map: Older district map (1966 to 1969)

Iowa Senate District 31, 1968 to 2022, 1968, every candidate
Candidate	Party	Votes and share	Share
RepublicanKenneth ParkerWon	Republican	8,16952.4%	52.4%
DemocraticJohn W. Patton(incumbent)	Democratic	7,41947.6%	47.6%
Scattered write-ins	Write-in	20.0%	0.0%

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

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: 2022.

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Election Wrld. (2026). Iowa State Senate District 31, election results 1968 to 2022. https://www.electionwrld.com/ia/senate/31. Retrieved October 30, 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; 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/sldu:31

DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), DIME (ODC-BY)Data as of Oct 28, 2026