ID
Idaho Senate District 17
Tue, Nov 3 · Represented by Carrie Semmelroth Democratic · Member list as of Oct 28
Benjamin ChafetzRepublicanCarrie SemmelrothDemocratic · Incumbent4 years since first win on file
No published poll names both candidates.Last result · 2024 general: Carrie Semmelroth (D) 57.3, Benjamin D. Chafetz (R) 42.7
- Last election
- Carrie Semmelroth (Democratic) won by 14.6 points, 2024
- On the 2026 ballot
- 2 candidates
Side by side
Left column: ChafetzRight column: Semmelroth
- Donor-based spectrum
- LiberalCentristConservativeChafetzSemmelroth
- Races won and lost
- 0-2
- 2-0
- Years since first win on file
- Not available
- 4
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
- Carrie SemmelrothIncumbentDemocratic
- Benjamin ChafetzRepublican
Source: run.voteidaho.gov, dated Oct 28
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- Republican
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List every Senate district (35)
- State Senate District 1· Jim Woodward
- State Senate District 2· Phil Hart
- State Senate District 3· Doug Okuniewicz
- State Senate District 4· Ben Toews
- State Senate District 5· Carl Bjerke
- State Senate District 6· Dan Foreman
- State Senate District 7· Cindy Carlson
- State Senate District 8· Christy Zito
- State Senate District 9· Brandon Shippy
- State Senate District 10· Tammy Nichols
- State Senate District 11· Camille Blaylock
- State Senate District 12· Ben Adams
- State Senate District 13· Brian Lenney
- State Senate District 14· Scott Grow
- State Senate District 15· Codi Galloway
- State Senate District 16· Ali Rabe
- State Senate District 17· Carrie Semmelroth
- State Senate District 18· Janie Ward-Engelking
- State Senate District 19· Melissa Wintrow
- State Senate District 20· Josh Keyser
- State Senate District 21· Treg Bernt
- State Senate District 22· Lori Den Hartog
- State Senate District 23· Todd Lakey
- State Senate District 24· Glenneda Zuiderveld
- State Senate District 25· Josh Kohl
- State Senate District 26· Ron Taylor
- State Senate District 27· Kelly Anthon
- State Senate District 28· Jim Guthrie
- State Senate District 29· James Ruchti
- State Senate District 30· Julie VanOrden
- State Senate District 31· Van Burtenshaw
- State Senate District 32· Kevin Cook
- State Senate District 33· Dave Lent
- State Senate District 34· Doug Ricks
- State Senate District 35· Mark Harris
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History (29 elections for this seat)
- Votes for listed candidates
- 23,129
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2024)
Idaho Senate District 17, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticCarrie SemmelrothWon Democratic 13,25057.3% RepublicanBenjamin D. Chafetz Republican 9,87942.7% - Votes for listed candidates
- 16,884
- Election day
- November 8, 2022
- District map
- Older district map (2022)
Idaho Senate District 17, 1968 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticCarrie SemmelrothWon Democratic 10,09459.8% RepublicanBenjamin Donovan Chafetz Republican 6,79040.2% - Votes for listed candidates
- 20,863
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Idaho Senate District 17, 1968 to 2024, 2020, every candidate Candidate Party Votes and share Share DemocraticAli Rabe Herrin IIIWon Democratic 12,89161.8% RepublicanGary L. Smith Republican 7,97238.2% - Votes for listed candidates
- 16,721
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Idaho Senate District 17, 1968 to 2024, 2018, every candidate Candidate Party Votes and share Share DemocraticMaryanne JordanWon(incumbent) Democratic 11,65269.7% RepublicanDavid L. Dehaas Republican 5,06930.3% - Votes for listed candidates
- 16,821
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Idaho Senate District 17, 1968 to 2024, 2016, every candidate Candidate Party Votes and share Share DemocraticMaryanne JordanWon Democratic 10,58662.9% RepublicanRobert Herrin III Republican 6,23537.1% - Votes for listed candidates
- 9,173
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2021)
Idaho Senate District 17, 1968 to 2024, 2014, every candidate Candidate Party Votes and share Share DemocraticElliot WerkWon(incumbent) Democratic 9,173100.0% - Votes for listed candidates
- 16,130
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Idaho Senate District 17, 1968 to 2024, 2012, every candidate Candidate Party Votes and share Share DemocraticElliot WerkWon(incumbent) Democratic 10,15062.9% RepublicanJudy M. Peaveyderr Republican 5,98037.1% - Votes for listed candidates
- 9,354
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2011)
Idaho Senate District 17, 1968 to 2024, 2010, every candidate Candidate Party Votes and share Share DemocraticElliot WerkWon(incumbent) Democratic 5,66560.6% RepublicanLucas V. Baumbach Republican 3,68939.4% - Votes for listed candidates
- 15,303
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
Idaho Senate District 17, 1968 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticElliot WerkWon(incumbent) Democratic 10,12066.1% RepublicanT. Allen Hoover Republican 5,18333.9% - Votes for listed candidates
- 11,452
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2011)
Idaho Senate District 17, 1968 to 2024, 2006, every candidate Candidate Party Votes and share Share DemocraticElliot WerkWon(incumbent) Democratic 7,68067.1% RepublicanTim Flaherty Republican 3,77232.9% - Votes for listed candidates
- 14,848
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
Idaho Senate District 17, 1968 to 2024, 2004, every candidate Candidate Party Votes and share Share DemocraticElliot WerkWon(incumbent) Democratic 8,27555.7% RepublicanHeather Anne Cunningham Republican 6,57344.3% - Votes for listed candidates
- 10,889
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
Idaho Senate District 17, 1968 to 2024, 2002, every candidate Candidate Party Votes and share Share DemocraticElliot WerkWon Democratic 5,87353.9% RepublicanGrant R. Ipsen(incumbent) Republican 4,63042.5% LibertarianDavid H. Slack Libertarian 3863.5% - Votes for listed candidates
- 11,992
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
Idaho Senate District 17, 1968 to 2024, 2000, every candidate Candidate Party Votes and share Share RepublicanGrant R. IpsenWon(incumbent) Republican 6,74056.2% DemocraticLinda S. Emery Democratic 4,66238.9% LibertarianDavid H. Slack Libertarian 5904.9% - Votes for listed candidates
- 9,787
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
Idaho Senate District 17, 1968 to 2024, 1998, every candidate Candidate Party Votes and share Share RepublicanGrant R. IpsenWon(incumbent) Republican 5,79559.2% DemocraticLafawn Hamm Democratic 3,99240.8% - Votes for listed candidates
- 12,901
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
Idaho Senate District 17, 1968 to 2024, 1996, every candidate Candidate Party Votes and share Share RepublicanGrant R. IpsenWon(incumbent) Republican 7,92861.5% DemocraticMelanie L. Randolph Democratic 4,97338.5% - Votes for listed candidates
- 9,343
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
Idaho Senate District 17, 1968 to 2024, 1994, every candidate Candidate Party Votes and share Share RepublicanGrant R. IpsenWon(incumbent) Republican 9,343100.0% - Votes for listed candidates
- 14,335
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
Idaho Senate District 17, 1968 to 2024, 1992, every candidate Candidate Party Votes and share Share RepublicanGrant R. IpsenWon Republican 7,73854.0% DemocraticDon Lojek Democratic 6,59746.0% - Votes for listed candidates
- 8,630
- Election day
- November 6, 1990
- District map
- Older district map (1984 to 1991)
Idaho Senate District 17, 1968 to 2024, 1990, every candidate Candidate Party Votes and share Share RepublicanEdward OsborneWon Republican 4,36250.5% DemocraticDon Lojek Democratic 4,26849.5% - Votes for listed candidates
- 11,431
- Election day
- November 8, 1988
- District map
- Older district map (1984 to 1991)
Idaho Senate District 17, 1968 to 2024, 1988, every candidate Candidate Party Votes and share Share RepublicanRachel S. GilbertWon(incumbent) Republican 6,01752.6% DemocraticLinda Clark Democratic 5,41447.4% - Votes for listed candidates
- 10,757
- Election day
- November 4, 1986
- District map
- Older district map (1984 to 1991)
Idaho Senate District 17, 1968 to 2024, 1986, every candidate Candidate Party Votes and share Share RepublicanRachel S. GilbertWon(incumbent) Republican 5,40350.2% DemocraticLinda Clark Democratic 5,35449.8% - Votes for listed candidates
- 11,285
- Election day
- November 6, 1984
- District map
- Older district map (1984 to 1991)
Idaho Senate District 17, 1968 to 2024, 1984, every candidate Candidate Party Votes and share Share RepublicanRachel S. GilbertWon Republican 7,31464.8% DemocraticJ. C. Worthen Democratic 3,97135.2% - Votes for listed candidates
- 12,137
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1983)
Idaho Senate District 17, 1968 to 2024, 1982, every candidate Candidate Party Votes and share Share DemocraticGail BrayWon Democratic 7,15559.0% RepublicanDean E. Sorensen Republican 4,98241.0% - Votes for listed candidates
- 10,516
- Election day
- November 4, 1980
- District map
- Older district map (1976 to 1981)
Idaho Senate District 17, 1968 to 2024, 1980, every candidate Candidate Party Votes and share Share DemocraticRon J. TwilegarWon(incumbent) Democratic 5,55952.9% RepublicanMarilyn G. Olmstead Republican 4,95747.1% - Votes for listed candidates
- 7,880
- Election day
- November 7, 1978
- District map
- Older district map (1976 to 1981)
Idaho Senate District 17, 1968 to 2024, 1978, every candidate Candidate Party Votes and share Share DemocraticRon J. TwilegarWon(incumbent) Democratic 4,72460.0% IndependentH. Ferd Koch Independent 3,15640.0% - Votes for listed candidates
- 9,837
- Election day
- November 2, 1976
- District map
- Older district map (1976 to 1981)
Idaho Senate District 17, 1968 to 2024, 1976, every candidate Candidate Party Votes and share Share DemocraticRon J. TwilegarWon Democratic 5,14152.3% RepublicanH. Dean Summers(incumbent) Republican 4,35044.2% LibertarianLowell E. Carpenter Libertarian 3463.5% - Votes for listed candidates
- 7,726
- Election day
- November 4, 1974
- District map
- Older district map (1974 to 1975)
Idaho Senate District 17, 1968 to 2024, 1974, every candidate Candidate Party Votes and share Share RepublicanH. Dean SummersWon(incumbent) Republican 4,21854.6% DemocraticJim Hill Democratic 3,50845.4% - Votes for listed candidates
- 9,584
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1973)
Idaho Senate District 17, 1968 to 2024, 1972, every candidate Candidate Party Votes and share Share RepublicanH. Dean SummersWon(incumbent) Republican 5,55958.0% DemocraticPaul Boyd Democratic 4,02542.0% - Votes for listed candidates
- 7,064
- Election day
- November 3, 1970
- District map
- Older district map (1966 to 1971)
Idaho Senate District 17, 1968 to 2024, 1970, every candidate Candidate Party Votes and share Share RepublicanH. Dean SummersWon(incumbent) Republican 3,89655.1% DemocraticKathleen Day Democratic 3,16844.9% - Votes for listed candidates
- 5,871
- Election day
- November 5, 1968
- District map
- Older district map (1966 to 1971)
Idaho Senate District 17, 1968 to 2024, 1968, every candidate Candidate Party Votes and share Share RepublicanH. Dean SummersWon(incumbent) Republican 5,871100.0%
- 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
- 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.
Download and cite
Cite this page
Election Wrld. (2026). Idaho Senate District 17, election results 1968 to 2024. https://www.electionwrld.com/id/senate/17. 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; 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:id/sldu:17
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), DIME (ODC-BY)Data as of Oct 28, 2026