South Dakota's 1st legislative district is one of 35 districts in the South Dakota Legislature. Each district is represented by 1 senator and 2 representatives. In the Senate, It has been represented by Republican Michael Rohl since 2021, and in the House, it has been represented by Republicans Joe Donnell since 2023 and Tamara St. John since 2019.

Geography The district is located in Northeastern South Dakota. It contains Brown, Day, Marshall and Roberts County. Its largest city is Sisseton.

Recent election results South Dakota legislators are elected to two-year terms, with each permitted to serve a maximum of four consecutive two-year terms. Elections are held every even-numbered year.

State senate elections

Year Incumbent Party Firstelected Result General election Primary elections 2022 Michael Rohl Republican 2020 Incumbent re-elected. 2020 Susan Wismer Democratic 2018 Incumbent defeated.Republican gain. 2018 Jason Frerichs Democratic 2010 Incumbent retired.Democratic hold. 2016 Jason Frerichs Democratic 2010 Incumbent re-elected. 2014 Jason Frerichs Democratic 2010 Incumbent re-elected. 2012 Jason Frerichs Democratic 2010 Incumbent re-elected.

State house elections

In 33 of the 35 legislative districts, both representatives are elected at-large. The top two candidates in each party's primaries will be their respective party's nominees for the general election.

Year Incumbents Party Firstelected Result General election Primary elections 2022 Tamara St. JohnJenniferHealyKeintz RepublicanDemocratic 20182020 Incumbent re-elected.Incumbent lost nomination.Republican gain. 2020 Tamara St. JohnSteven McCleerey RepublicanDemocratic 20182014 Incumbent re-elected.Incumbent lost re-election.Mixed hold. 2018 Steven McCleereySusan Wismer Democratic 20142016 Incumbent re-elected.Incumbent retired.Republican gain. 2016 Dennis FeickertSteven McCleerey Democratic 20082014 Incumbent retired.Incumbent re-elected.Democratic hold. 2014 Dennis FeickertSusan Wismer Democratic 2008 Incumbent re-elected.Incumbent retired.Democratic hold. 2012 Dennis FeickertSusan Wismer Democratic 2008 Incumbents re-elected.

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