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South Dakota
Candidate profile

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John R. Marquardt

Republican · South Dakota · 2026

Running for South Dakota House District 18, South Dakota

Top priorities

From the campaign site

  • Supports funding for schools and public safety in District 18
  • Wants the legislature to require fiscal impact statements before imposing new mandates on counties and increase state participation in existing obligations
  • Focuses on infrastructure and managing growth from expanding industries in the district
Biography

John R. Marquardt serves as chairman of the Yankton County Commission, per his campaign site. He was raised on a family farm in the Yankton area, per his campaign site.

Campaign site (opens in a new tab)

On the ballot

South Dakota House District 18South Dakota · 2026Yankton County sample ballot

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Voting info and more

Voting info and more
How we source this

Profile facts follow official election office filings and the sources cited in each biography. Roster last verified October 24, 2026. Official sources are the final word on who appears on your ballot.

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