South Dakota › Yankton County › South Dakota House District 18
4 candidates are tracked for South Dakota House District 18 on the November 3, 2026 ballot: Karen Springer, Jarod Holcomb, John R. Marquardt and Mike Stevens. Candidate information follows official Yankton County election filings; verify with the official election office linked below.
Karen Springer (Democratic), Jarod Holcomb (Democratic), John R. Marquardt (Republican), Mike Stevens (Republican) are on the November 3, 2026 ballot for South Dakota House District 18. Voters choose two. Mike Stevens is the sitting member, per the Legislature's 2026 session roster. Party nominees were chosen at the June 2, 2026 primary, per the South Dakota Secretary of State's 2026 general-election candidate list.
Democratic
Karen Springer is the Democratic nominee for South Dakota House District 18 on the November 3, 2026 ballot, per the South Dakota Secretary of State's 2026 general-election candidate list. This name has not yet been researched.
Democratic
Jarod Holcomb is the Democratic nominee for South Dakota House District 18 on the November 3, 2026 ballot, per the South Dakota Secretary of State's 2026 general-election candidate list. This name has not yet been researched.
Republican
John R. Marquardt is the Republican nominee for South Dakota House District 18 on the November 3, 2026 ballot, per the South Dakota Secretary of State's 2026 general-election candidate list. This name has not yet been researched.
Republican · Incumbent
Mike Stevens is the Republican nominee for South Dakota House District 18 on the November 3, 2026 ballot, per the South Dakota Secretary of State's 2026 general-election candidate list. Mike Stevens is the sitting member, per the Legislature's 2026 session roster. This name has not yet been researched.
4 candidates are tracked for South Dakota House District 18 on the November 3, 2026 ballot: Karen Springer, Jarod Holcomb, John R. Marquardt and Mike Stevens. Candidate information follows official Yankton County election filings; verify with the official election office linked below.
Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for South Dakota are on the South Dakota election hub at theballotbrief.com.
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