2018 South Dakota Senate election
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All 35 seats in the South Dakota Senate 18 seats needed for a majority | ||||||||||||||||||||||||||||
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| Turnout | 64.89%[1] | |||||||||||||||||||||||||||
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| Elections in South Dakota | ||||||||||||
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The 2018 South Dakota Senate election was held on November 6, 2018, to determine which party would control the South Dakota Senate for the following two years in the 94th South Dakota Legislature. All 35 seats in the South Dakota Senate were up for election and the primary was held on June 5, 2018. Prior to the election, 29 seats were held by Republicans and 6 seats were held by Democrats. The general election saw Republicans expanding their majority in the State Senate by a single seat.[2][3]
Retirements
Democrats
- District 1: Jason Frerichs was term-limited.
- District 21: Billie Sutton was term-limited and went on to unsuccessfully run for governor of South Dakota.
- District 27: Kevin Killer retired.
Republicans
- District 5: Neal Tapio retired to unsuccessfully run for South Dakota's at-large congressional district.
- District 7: Larry Tidemann was term-limited.
- District 9: Deb Peters was term-limited.
- District 10: Jenna Netherton resigned on April 10, 2018.
- District 35: Terri Haverly retired.
Closest races
Seats where the margin of victory was under 10%:
- District 12, 0.28%
- District 18, 5.32%
- District 26, 6.08%
- District 13, 8.34%
- District 21, 9.26% (gain)
Results
District 1
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Susan Wismer | 5,886 | 100.0% | |
| Total votes | 5,886 | 100.0% | ||
| Democratic hold | ||||
District 2
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Brock Greenfield (incumbent) | 6,574 | 67.21% | |
| Democratic | Paul Register | 3,207 | 32.79% | |
| Total votes | 9,781 | 100.0% | ||
| Republican hold | ||||
District 3
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Al Novstrup (incumbent) | 5,338 | 58.50% | |
| Democratic | Cory Heidelberger | 3,787 | 41.50% | |
| Total votes | 9,125 | 100.0% | ||
| Republican hold | ||||
District 4
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | John Wiik (incumbent) | 6,500 | 64.84% | |
| Democratic | Dennis Evenson | 3,525 | 35.16% | |
| Total votes | 10,025 | 100.0% | ||
| Republican hold | ||||
District 5
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Lee Schoenbeck | 6,358 | 100.0% | |
| Total votes | 6,358 | 100.0% | ||
| Republican hold | ||||
District 6
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Ernie Otten (incumbent) | 6,945 | 65.09% | |
| Democratic | Teresa Ann Robbins | 3,725 | 34.91% | |
| Total votes | 10,670 | 100.0% | ||
| Republican hold | ||||
District 7
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | V. J. Smith | 4,628 | 61.15% | |
| Independent | Mary Perpich | 2,940 | 38.85% | |
| Total votes | 7,568 | 100.0% | ||
| Republican hold | ||||
District 8
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jordan Youngberg (incumbent) | 5,517 | 55.18% | |
| Democratic | Scott Parsley | 4,481 | 44.82% | |
| Total votes | 9,998 | 100.0% | ||
| Republican hold | ||||
District 9
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Wayne Steinhauer | 4,759 | 56.66% | |
| Democratic | Laura Swier Kotelman | 3,640 | 43.34% | |
| Total votes | 8,399 | 100.0% | ||
| Republican hold | ||||
District 10
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Margaret Sutton | 5,240 | 59.56% | |
| Democratic | Rachel Willson | 3,558 | 40.44% | |
| Total votes | 8,798 | 100.0% | ||
| Republican hold | ||||
District 11
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jim Stalzer (incumbent) | 6,190 | 60.40% | |
| Democratic | Kevin Elsing | 4,058 | 39.60% | |
| Total votes | 10,248 | 100.0% | ||
| Republican hold | ||||
District 12
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Blake Curd (incumbent) | 4,872 | 50.14% | |
| Democratic | Kasey Olivier | 4,845 | 49.86% | |
| Total votes | 9,717 | 100.0% | ||
| Republican hold | ||||
District 13
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jack Kolbeck (incumbent) | 6,165 | 54.17% | |
| Democratic | Melissa Hiatt | 5,215 | 45.83% | |
| Total votes | 11,380 | 100.0% | ||
| Republican hold | ||||
District 14
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Deb Soholt (incumbent) | 6,531 | 60.48% | |
| Democratic | Justyn Hauck | 4,268 | 39.52% | |
| Total votes | 10,799 | 100.0% | ||
| Republican hold | ||||
District 15
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Reynold Nesiba (incumbent) | 3,258 | 100.0% | |
| Total votes | 3,258 | 100.0% | ||
| Democratic hold | ||||
District 16
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jim Bolin (incumbent) | 6,815 | 68.52% | |
| Democratic | Elizabeth Merrigan | 3,131 | 31.48% | |
| Total votes | 9,946 | 100.0% | ||
| Republican hold | ||||
District 17
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Arthur Rusch (incumbent) | 4,953 | 61.16% | |
| Democratic | Howard Grinager | 3,145 | 38.84% | |
| Total votes | 8,098 | 100.0% | ||
| Republican hold | ||||
District 18
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Craig Kennedy (incumbent) | 4,518 | 52.66% | |
| Republican | Roger Meyer | 4,061 | 47.34% | |
| Total votes | 8,579 | 100.0% | ||
| Democratic hold | ||||
District 19
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Stace Nelson (incumbent) | 7,531 | 74.03% | |
| Democratic | Ardon Wek | 2,642 | 25.97% | |
| Total votes | 10,173 | 100.0% | ||
| Republican hold | ||||
District 20
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Joshua Klumb (incumbent) | 6,606 | 72.49% | |
| Democratic | Dan Miller | 2,507 | 27.51% | |
| Total votes | 9,113 | 100.0% | ||
| Republican hold | ||||
District 21
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Rocky Blare | 4,918 | 54.63% | |
| Democratic | Julie Bartling | 4,084 | 45.37% | |
| Total votes | 9,002 | 100.0% | ||
| Republican gain from Democratic | ||||
District 22
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jim White (incumbent) | 5,933 | 72.65% | |
| Democratic | Eric Bliss | 2,234 | 27.35% | |
| Total votes | 8,167 | 100.0% | ||
| Republican hold | ||||
District 23
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Justin Cronin (incumbent) | 7,869 | 82.57% | |
| Democratic | Joe Yracheta | 1,661 | 17.43% | |
| Total votes | 9,530 | 100.0% | ||
| Republican hold | ||||
District 24
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jeff Monroe (incumbent) | 6,989 | 66.51% | |
| Democratic | Amanda Bachmann | 3,519 | 33.49% | |
| Total votes | 10,508 | 100.0% | ||
| Republican hold | ||||
District 25
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Kris Langer (incumbent) | 6,583 | 68.30% | |
| Independent | Brian Wirth | 1,931 | 20.03% | |
| Independent | Peter Klebanoff | 1,125 | 11.67% | |
| Total votes | 9,639 | 100.0% | ||
| Republican hold | ||||
District 26
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Troy Heinert (incumbent) | 3,896 | 53.04% | |
| Republican | Joel Koskan | 3,450 | 46.96% | |
| Total votes | 7,346 | 100.0% | ||
| Democratic hold | ||||
District 27
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Red Dawn Foster | 3,673 | 57.90% | |
| Republican | Bill Hines | 2,598 | 42.10% | |
| Total votes | 6,171 | 100.0% | ||
| Democratic hold | ||||
District 28
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Ryan Maher (incumbent) | 5,818 | 67.79% | |
| Democratic | Alli Moran | 2,764 | 32.21% | |
| Total votes | 8,582 | 100.0% | ||
| Republican hold | ||||
District 29
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Gary Cammack (incumbent) | 6,422 | 71.51% | |
| Democratic | Matt Kammerer | 2,558 | 28.49% | |
| Total votes | 8,980 | 100.0% | ||
| Republican hold | ||||
District 30
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Lance Russell (incumbent) | 6,652 | 56.72% | |
| Democratic | Kristine Winter | 2,943 | 25.09% | |
| Libertarian | Gideon Oakes | 2,134 | 18.19% | |
| Total votes | 11,729 | 100.0% | ||
| Republican hold | ||||
District 31
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Bob Ewing (incumbent) | 6,962 | 65.24% | |
| Democratic | Sherry Bea Smith | 3,710 | 34.76% | |
| Total votes | 10,672 | 100.0% | ||
| Republican hold | ||||
District 32
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Alan Solano (incumbent) | 5,602 | 62.20% | |
| Democratic | Ayla Rodriguez | 3,404 | 37.80% | |
| Total votes | 9,006 | 100.0% | ||
| Republican hold | ||||
District 33
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Phil Jensen (incumbent) | 6,655 | 62.35% | |
| Democratic | Ryan Ryder | 4,018 | 37.65% | |
| Total votes | 10,673 | 100.0% | ||
| Republican hold | ||||
District 34
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jeff Partridge (incumbent) | 6,332 | 62.69% | |
| Democratic | Zach VanWyk | 3,769 | 37.31% | |
| Total votes | 10,101 | 100.0% | ||
| Republican hold | ||||
District 35
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Lynne DiSanto | 4,323 | 62.00% | |
| Democratic | Pat Cromwell | 2,650 | 38.00% | |
| Total votes | 6,973 | 100.0% | ||
| Republican hold | ||||
References
- ↑ "2018 Election History". sdsos.gov. Retrieved December 2, 2025.
- ↑ "South Dakota State Senate elections, 2018". ballotpedia.org. Retrieved December 2, 2025.
- ↑ "General Election - November 6, 2018" (PDF). sdsos.gov. Retrieved December 2, 2025.
- ↑ Jacobson, Louis (October 8, 2018). "A Month Before Election Day, Democrats Poised for Legislative Gains". Governing. Retrieved December 2, 2025.