South Dakota State Senate District 26
Tue, Nov 3 · Represented by Tamara Grove Republican · Member list as of Oct 28
Shawn BordeauxDemocratic4 years since first winRebecca ReimerRepublican8 years since first win
Last result · 2024 general: Tamara Grove (R) 57.3, Shawn Bordeaux (D) 42.7
- Earlier results
- Shawn Bordeaux (Democratic) won by 16.5 points, 2022Troy Heinert (Democratic) won by 5.7 points, 2020, older linesAll 29 elections
Side by side
Left column: BordeauxRight column: Reimer
- Races
- Won 1 of 2
- Won 4 of 4
How these are counted
Wins and losses count the races in our results files, the same as each profile.
Past results
- Votes for listed candidates
- 7,549
- Election day
- November 5, 2024
- District map
- Same as today
South Dakota Senate District 26, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share RepublicanTamara GroveWon Republican 4,32857.3% DemocraticShawn Bordeaux Democratic 3,22142.7% - Votes for listed candidates
- 5,978
- Election day
- November 8, 2022
- District map
- Same as today
South Dakota Senate District 26, 1968 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticShawn BordeauxWon Democratic 3,48358.3% RepublicanJoel Koskan Republican 2,49541.7% - Votes for listed candidates
- 8,357
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 26, 1968 to 2024, 2020, every candidate Candidate Party Votes and share Share DemocraticTroy HeinertWon(incumbent) Democratic 4,41652.8% RepublicanJoel Koskan Republican 3,94147.2% - Votes for listed candidates
- 7,346
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 26, 1968 to 2024, 2018, every candidate Candidate Party Votes and share Share DemocraticTroy HeinertWon(incumbent) Democratic 3,89653.0% RepublicanJoel Koskan Republican 3,45047.0%
- 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.
All elections (29 for this seat)
- Votes for listed candidates
- 7,549
- Election day
- November 5, 2024
- District map
- Same as today
South Dakota Senate District 26, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share RepublicanTamara GroveWon Republican 4,32857.3% DemocraticShawn Bordeaux Democratic 3,22142.7% - Votes for listed candidates
- 5,978
- Election day
- November 8, 2022
- District map
- Same as today
South Dakota Senate District 26, 1968 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticShawn BordeauxWon Democratic 3,48358.3% RepublicanJoel Koskan Republican 2,49541.7% - Votes for listed candidates
- 8,357
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 26, 1968 to 2024, 2020, every candidate Candidate Party Votes and share Share DemocraticTroy HeinertWon(incumbent) Democratic 4,41652.8% RepublicanJoel Koskan Republican 3,94147.2% - Votes for listed candidates
- 7,346
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 26, 1968 to 2024, 2018, every candidate Candidate Party Votes and share Share DemocraticTroy HeinertWon(incumbent) Democratic 3,89653.0% RepublicanJoel Koskan Republican 3,45047.0% - Votes for listed candidates
- 4,601
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 26, 1968 to 2024, 2016, every candidate Candidate Party Votes and share Share DemocraticTroy HeinertWon(incumbent) Democratic 4,601100.0% - Votes for listed candidates
- 6,630
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 26, 1968 to 2024, 2014, every candidate Candidate Party Votes and share Share DemocraticTroy E. HeinertWon Democratic 3,74756.5% RepublicanJohn Koskan Republican 2,88343.5% - Votes for listed candidates
- 8,314
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 26, 1968 to 2024, 2012, every candidate Candidate Party Votes and share Share DemocraticLarry J. LucasWon Democratic 4,40553.0% RepublicanKent Juhnke Republican 3,90947.0% - Votes for listed candidates
- 7,212
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2011)
South Dakota Senate District 26, 1968 to 2024, 2010, every candidate Candidate Party Votes and share Share DemocraticBillie H. SuttonWon Democratic 4,16757.8% RepublicanJohn S. Meyer Republican 3,04542.2% - Votes for listed candidates
- 8,577
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
South Dakota Senate District 26, 1968 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticJulie BartlingWon(incumbent) Democratic 5,40363.0% RepublicanJohn Koskan Republican 3,17437.0% - Votes for listed candidates
- 7,378
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2011)
South Dakota Senate District 26, 1968 to 2024, 2006, every candidate Candidate Party Votes and share Share DemocraticJulie BartlingWon(incumbent) Democratic 4,37459.3% RepublicanLee Weidner Republican 3,00440.7% - Votes for listed candidates
- 10,157
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
South Dakota Senate District 26, 1968 to 2024, 2004, every candidate Candidate Party Votes and share Share RepublicanJohn KoskanWon(incumbent) Republican 5,80357.1% DemocraticDavid Reis Democratic 4,35442.9% - Votes for listed candidates
- 9,818
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
South Dakota Senate District 26, 1968 to 2024, 2002, every candidate Candidate Party Votes and share Share RepublicanJohn KoskanWon(incumbent) Republican 5,58156.8% DemocraticDavid Reis Democratic 4,23743.2% - Votes for listed candidates
- 6,191
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
South Dakota Senate District 26, 1968 to 2024, 2000, every candidate Candidate Party Votes and share Share RepublicanJohn KoskanWon Republican 6,191100.0% - Votes for listed candidates
- 6,848
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
South Dakota Senate District 26, 1968 to 2024, 1998, every candidate Candidate Party Votes and share Share RepublicanRobert BensonWon(incumbent) Republican 4,79670.0% DemocraticWilliam Kindle Democratic 2,05230.0% - Votes for listed candidates
- 8,379
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
South Dakota Senate District 26, 1968 to 2024, 1996, every candidate Candidate Party Votes and share Share RepublicanRobert BensonWon Republican 5,46665.2% DemocraticGary Nelson Democratic 2,91334.8% - Votes for listed candidates
- 6,650
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
South Dakota Senate District 26, 1968 to 2024, 1994, every candidate Candidate Party Votes and share Share RepublicanRoger PorchWon(incumbent) Republican 6,650100.0% - Votes for listed candidates
- 8,871
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
South Dakota Senate District 26, 1968 to 2024, 1992, every candidate Candidate Party Votes and share Share RepublicanRoger PorchWon(incumbent) Republican 4,47850.5% DemocraticDoris Miner(incumbent) Democratic 4,39349.5% - Votes for listed candidates
- 6,715
- Election day
- November 6, 1990
- District map
- Older district map (1984 to 1991)
South Dakota Senate District 26, 1968 to 2024, 1990, every candidate Candidate Party Votes and share Share RepublicanCarol MaickiWon Republican 3,63054.1% OtherBruce J. Walker(incumbent) Other 3,08545.9% - Votes for listed candidates
- 6,737
- Election day
- November 8, 1988
- District map
- Older district map (1984 to 1991)
South Dakota Senate District 26, 1968 to 2024, 1988, every candidate Candidate Party Votes and share Share RepublicanBruce J. WalkerWon(incumbent) Republican 6,737100.0% - Votes for listed candidates
- 5,082
- Election day
- November 4, 1986
- District map
- Older district map (1984 to 1991)
South Dakota Senate District 26, 1968 to 2024, 1986, every candidate Candidate Party Votes and share Share RepublicanBruce J. WalkerWon(incumbent) Republican 5,082100.0% - Votes for listed candidates
- 7,885
- Election day
- November 6, 1984
- District map
- Older district map (1984 to 1991)
South Dakota Senate District 26, 1968 to 2024, 1984, every candidate Candidate Party Votes and share Share RepublicanBruce J. WalkerWon Republican 4,36055.3% DemocraticBob Samuelson(incumbent) Democratic 3,52544.7% - Votes for listed candidates
- 6,192
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1983)
South Dakota Senate District 26, 1968 to 2024, 1982, every candidate Candidate Party Votes and share Share RepublicanJames B. DunnWon(incumbent) Republican 6,192100.0% - Votes for listed candidates
- 9,985
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1981)
South Dakota Senate District 26, 1968 to 2024, 1980, every candidate Candidate Party Votes and share Share RepublicanJames B. DunnWon(incumbent) Republican 6,23162.4% DemocraticJames Hersrud Democratic 3,75437.6% - Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
South Dakota Senate District 26, 1968 to 2024, 1978, every candidate Candidate Party Votes and share Share RepublicanJames B. DunnWon(incumbent) Republican —— - Votes for listed candidates
- 8,529
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1981)
South Dakota Senate District 26, 1968 to 2024, 1976, every candidate Candidate Party Votes and share Share RepublicanJames B. DunnWon(incumbent) Republican 5,45764.0% DemocraticM. W. Clarkson Democratic 3,07236.0% - Votes for listed candidates
- 7,482
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
South Dakota Senate District 26, 1968 to 2024, 1974, every candidate Candidate Party Votes and share Share RepublicanJames B. DunnWon(incumbent) Republican 4,39458.7% DemocraticJames A. Veitl Democratic 3,08841.3% - Votes for listed candidates
- 8,183
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
South Dakota Senate District 26, 1968 to 2024, 1972, every candidate Candidate Party Votes and share Share RepublicanJames B. DunnWon Republican 4,86359.4% DemocraticGlen E. Collins Democratic 3,32040.6% - Votes for listed candidates
- 916
- Election day
- November 3, 1970
- District map
- Older district map (1966 to 1971)
South Dakota Senate District 26, 1968 to 2024, 1970, every candidate Candidate Party Votes and share Share RepublicanKenneth A. TraskWon(incumbent) Republican 916100.0% - Votes for listed candidates
- 1,859
- Election day
- November 5, 1968
- District map
- Older district map (1966 to 1971)
South Dakota Senate District 26, 1968 to 2024, 1968, every candidate Candidate Party Votes and share Share RepublicanKenneth A. TraskWon Republican 1,859100.0%
- 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
More about this race
Open seat
The current holder, Tamara Grove, is not on the candidate list.
Some names come from filing lists and may not be on the ballot.
Source: vip.sdsos.gov, dated Oct 28
District map
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- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
Map settings
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Official results for South Dakota
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Cite this page
Election Wrld. (2026). South Dakota State Senate District 26, election results 1968 to 2024. https://www.electionwrld.com/sd/senate/26. 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