South Dakota House District 18
State House District 18
Covers all of Yankton County; part of Clay County.
Who Holds This Seat
Running in 2026
Republican · State Representative
- Ballot
- On the 2026 ballot
- Last Change
- Profile updated · Oct 4
- Raised
- Not on file
- Cash on Hand
- Not on file
No finance filing on record.
Democrat
- Ballot
- On the 2026 ballot
- Last Change
- Profile updated · Oct 4
- Raised
- Not on file
- Cash on Hand
- Not on file
No finance filing on record.
Republican
- Ballot
- On the 2026 ballot
- Last Change
- Profile updated · Oct 4
- Raised
- Not on file
- Cash on Hand
- Not on file
No finance filing on record.
Democrat
- Ballot
- On the 2026 ballot
- Last Change
- Profile updated · Oct 4
- Raised
- Not on file
- Cash on Hand
- Not on file
No finance filing on record.
The District
Includes Yankton, Mission Hill, Wakonda, Gayville, Irene (part), Jamesville Colony, Lesterville, Utica and Volin.
2 precincts · District lines: State house lines: U.S. Census Bureau (1:500,000 cartographic boundary) · Precinct lines: U.S. Census Bureau, 2020 TIGER/Line voting districts (VTD20)
Results in This District
| Contest | First | Second | Margin | Votes | Source |
|---|---|---|---|---|---|
| 2022 U.S. Senate1 precinctsSouth Dakota Secretary of StateOfficial — South Dakota Secretary of… | John R. Thune (R)219 · 70.0% | Brian L. Bengs (D)79 · 25.2% | R+44.7 | 313 | South Dakota Secretary of StateOfficial — South Dakota Secretary of… |
| 2022 Governor1 precinctsSouth Dakota Secretary of StateOfficial — South Dakota Secretary of… | Kristi Noem & Larry Rhoden (R)189 · 59.6% | Jamie Smith & Jennifer Keintz (D)114 · 36.0% | R+23.7 | 317 | South Dakota Secretary of StateOfficial — South Dakota Secretary of… |
Totals add up the certified precinct results for the precincts inside today's district lines where they are linked, and otherwise for the precincts that voted in this seat's own race. A precinct split by the district line counts in full, or only in the district holding most of its voters where the linkage assigns it to one, and votes a county reported only countywide (some counties' absentee and early votes) are left out, so totals can differ from an official canvass.
Past Results
State Representative District 18
2022 General Election · Nov 8, 2022| Candidate | Party | Votes | Share |
|---|---|---|---|
| Julie AuchRepublican | Republican | 174 | 33.5% |
| Mike StevensRepublican | Republican | 160 | 30.8% |
| Ryan D. CwachDemocrat | Democrat | 125 | 24.1% |
| Jay WilliamsDemocrat | Democrat | 60 | 11.6% |
Official — South Dakota Secretary of State, Official Election Returns (State Canvass) · South Dakota Secretary of State — 2022 Official Election Returns and…