South Dakota State Senate District 28
Tue, Nov 3 · Represented by Sam Marty Republican · Member list as of Oct 28
Sam MartyRepublican · Incumbent2 years since first win
One candidate on the printed ballot.
- Last election
- Sam Marty (Republican) won by 41.3 points, 2024
- On the 2026 ballot
- 1 candidate
More about this race
Candidates on the ballot
Uncontested
One candidate on the printed ballot.
- Sam MartyIncumbentRepublican
Some names come from filing lists and may not be on the ballot.
Source: vip.sdsos.gov, dated Oct 28
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Official results for South Dakota
History (29 elections for this seat)
- Votes for listed candidates
- 10,880
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2024)
South Dakota Senate District 28, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share RepublicanSam MartyWon Republican 6,96964.0% DemocraticDean Schrempp Democratic 2,47522.8% IndependentShane C. Farlee Independent 1,43613.2% - Votes for listed candidates
- 7,094
- Election day
- November 8, 2022
- District map
- Older district map (2022)
South Dakota Senate District 28, 1968 to 2024, 2022, every candidate Candidate Party Votes and share Share RepublicanRyan M. MaherWon(incumbent) Republican 7,094100.0% - Votes for listed candidates
- 7,506
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 28, 1968 to 2024, 2020, every candidate Candidate Party Votes and share Share RepublicanRyan M. MaherWon(incumbent) Republican 7,506100.0% - Votes for listed candidates
- 8,582
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 28, 1968 to 2024, 2018, every candidate Candidate Party Votes and share Share RepublicanRyan M. MaherWon(incumbent) Republican 5,81867.8% DemocraticAlli Moran Democratic 2,76432.2% - Votes for listed candidates
- 6,989
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 28, 1968 to 2024, 2016, every candidate Candidate Party Votes and share Share RepublicanRyan M. MaherWon Republican 6,989100.0% - Votes for listed candidates
- 7,314
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 28, 1968 to 2024, 2014, every candidate Candidate Party Votes and share Share RepublicanBetty OlsonWon Republican 3,99754.6% DemocraticOren L. Lesmeister Democratic 3,31745.4% - Votes for listed candidates
- 6,601
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
South Dakota Senate District 28, 1968 to 2024, 2012, every candidate Candidate Party Votes and share Share RepublicanRyan M. MaherWon(incumbent) Republican 6,601100.0% - Votes for listed candidates
- 6,568
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2011)
South Dakota Senate District 28, 1968 to 2024, 2010, every candidate Candidate Party Votes and share Share RepublicanRyan M. MaherWon(incumbent) Republican 4,73272.0% DemocraticJulie A. Garreau Democratic 1,83627.9% - Votes for listed candidates
- 8,235
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
South Dakota Senate District 28, 1968 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticRyan M. MaherWon(incumbent) Democratic 5,13462.3% RepublicanLes Wolff Republican 3,10137.7% - Votes for listed candidates
- 7,090
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2011)
South Dakota Senate District 28, 1968 to 2024, 2006, every candidate Candidate Party Votes and share Share DemocraticRyan MaherWon Democratic 3,82854.0% RepublicanTed A. Klaudt Republican 3,26246.0% - Votes for listed candidates
- 9,500
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
South Dakota Senate District 28, 1968 to 2024, 2004, every candidate Candidate Party Votes and share Share RepublicanEric H. BogueWon(incumbent) Republican 5,57458.7% DemocraticDean Schrempp Democratic 3,92641.3% - Votes for listed candidates
- 3,537
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
South Dakota Senate District 28, 1968 to 2024, 2002, every candidate Candidate Party Votes and share Share RepublicanEric H. BogueWon(incumbent) Republican 3,537100.0% - Votes for listed candidates
- 7,152
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
South Dakota Senate District 28, 1968 to 2024, 2000, every candidate Candidate Party Votes and share Share RepublicanEric H. BogueWon(incumbent) Republican 4,12257.6% DemocraticDean Schrempp Democratic 3,03042.4% - Votes for listed candidates
- 6,505
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
South Dakota Senate District 28, 1968 to 2024, 1998, every candidate Candidate Party Votes and share Share RepublicanEric H. BogueWon Republican 3,65556.2% DemocraticDean Schrempp Democratic 2,85043.8% - Votes for listed candidates
- 5,765
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
South Dakota Senate District 28, 1968 to 2024, 1996, every candidate Candidate Party Votes and share Share RepublicanWilliam J. JohnsonWon(incumbent) Republican 5,765100.0% - Votes for listed candidates
- 7,584
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
South Dakota Senate District 28, 1968 to 2024, 1994, every candidate Candidate Party Votes and share Share RepublicanWilliam J. JohnsonWon(incumbent) Republican 5,25269.3% DemocraticRocky Lecompte Democratic 2,33230.8% - Votes for listed candidates
- 7,527
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
South Dakota Senate District 28, 1968 to 2024, 1992, every candidate Candidate Party Votes and share Share RepublicanWilliam J. JohnsonWon(incumbent) Republican 4,19755.8% DemocraticDick Waddell Democratic 3,33044.2% - Votes for listed candidates
- 2,828
- Election day
- November 6, 1990
- District map
- Older district map (1984 to 1991)
South Dakota Senate District 28, 1968 to 2024, 1990, every candidate Candidate Party Votes and share Share DemocraticPaul ValandraWon Democratic 1,48352.4% IndependentWesley Elwood Independent 68124.1% RepublicanLester Emery Republican 66423.5% - Votes for listed candidates
- 3,774
- Election day
- November 8, 1988
- District map
- Older district map (1984 to 1991)
South Dakota Senate District 28, 1968 to 2024, 1988, every candidate Candidate Party Votes and share Share DemocraticGary NelsonWon Democratic 1,59342.2% IndependentPaul Valandra Independent 1,52040.3% RepublicanHarold L. Whiteman Republican 66117.5% - Votes for listed candidates
- 3,390
- Election day
- November 4, 1986
- District map
- Older district map (1984 to 1991)
South Dakota Senate District 28, 1968 to 2024, 1986, every candidate Candidate Party Votes and share Share DemocraticThomas ShortbullWon(incumbent) Democratic 3,390100.0% - Votes for listed candidates
- 2,826
- Election day
- November 6, 1984
- District map
- Older district map (1984 to 1991)
South Dakota Senate District 28, 1968 to 2024, 1984, every candidate Candidate Party Votes and share Share DemocraticThomas ShortbullWon(incumbent) Democratic 2,826100.0% - Votes for listed candidates
- 7,703
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1983)
South Dakota Senate District 28, 1968 to 2024, 1982, every candidate Candidate Party Votes and share Share RepublicanJohn L. BrownWon(incumbent) Republican 5,31469.0% DemocraticCleo M. Catchpole Democratic 2,38931.0% - Votes for listed candidates
- 9,068
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1981)
South Dakota Senate District 28, 1968 to 2024, 1980, every candidate Candidate Party Votes and share Share RepublicanJohn L. BrownWon Republican 6,06066.8% DemocraticRaymond R. Williams Democratic 3,00833.2% - Votes for listed candidates
- 7,975
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
South Dakota Senate District 28, 1968 to 2024, 1978, every candidate Candidate Party Votes and share Share RepublicanEldon S. JensenWon(incumbent) Republican 4,33354.3% DemocraticJohn R. Riedy Democratic 3,64245.7% - Votes for listed candidates
- 8,768
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1981)
South Dakota Senate District 28, 1968 to 2024, 1976, every candidate Candidate Party Votes and share Share RepublicanEldon S. JensenWon Republican 4,42550.5% DemocraticJohn R. Riedy(incumbent) Democratic 4,34349.5% - Votes for listed candidates
- 7,971
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
South Dakota Senate District 28, 1968 to 2024, 1974, every candidate Candidate Party Votes and share Share DemocraticJohn R. RiedyWon(incumbent) Democratic 3,80247.7% RepublicanN. F. Lyon Republican 2,50531.4% IndependentGary C. Velder Independent 1,66420.9% - Votes for listed candidates
- 8,706
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
South Dakota Senate District 28, 1968 to 2024, 1972, every candidate Candidate Party Votes and share Share DemocraticJohn R. RiedyWon Democratic 4,39350.5% RepublicanAlfred J. Burke(incumbent) Republican 4,31349.5% - Votes for listed candidates
- 44,620
- Election day
- November 3, 1970
- Seats
- 3
- District map
- Older district map (1966 to 1971)
South Dakota Senate District 28, 1968 to 2024, 1970, every candidate Candidate Party Votes and share Share DemocraticCharles E. Donnelly Jr.Won Democratic 8,53019.1% DemocraticFranklin WallahanWon Democratic 8,30418.6% DemocraticHomer KandarasWon Democratic 8,01918.0% RepublicanArthur L. Jones(incumbent) Republican 6,84115.3% RepublicanJohn W. Barnes Republican 6,53514.7% RepublicanR. James Brennan Republican 6,39114.3% - Votes for listed candidates
- 32,802
- Election day
- November 5, 1968
- Seats
- 3
- District map
- Older district map (1966 to 1971)
South Dakota Senate District 28, 1968 to 2024, 1968, every candidate Candidate Party Votes and share Share RepublicanArthur L. JonesWon(incumbent) Republican 11,08633.8% RepublicanFrank E. HendersonWon Republican 10,96733.4% RepublicanKenneth L. RobertsWon Republican 10,74932.8%
- 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). South Dakota State Senate District 28, election results 1968 to 2024. https://www.electionwrld.com/sd/senate/28. 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:sd/sldu:28
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), MEDSL 2024 official precinct returnsData as of Oct 28, 2026