South Dakota's 31st legislative district
| South Dakota's 31st State Senate district | |
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South Dakota's 31st legislative district is one of 35 districts in the South Dakota Legislature. Each district elects one senator and two representatives. In the state senate, it has been represented by Republican Randy Deibert since 2023. In the state house, it has been represented by Republicans Mary Fitzgerald and Scott Odenbach since 2021.