Jon Hansen is a member of the South Dakota House of Representatives, representing District 25. He assumed office on January 8, 2019. His current term ends on January 12, 2027. In January 2025, Hansen was unanimously elected House speaker. He was born in Yankton, South Dakota. He earned an associate degree in business administration from Southeast Technical Institute in 2009, a bachelor's degree in business management from the University of Sioux Falls in 2013, and a law degree from the University of South Dakota Knudson School of Law in 2016. Hansen served as president of the Dell Rapids Chamber of Commerce from 2007 to 2010. In 2010, he was first elected to represent District 25 in the South Dakota House of Representatives. He was re-elected in 2012 and did not run in 2014 or 2016, but he was elected again in 2018, 2020, and 2022. Hansen served as House majority whip from 2018 to 2020, and as speaker pro tempore from 2020 to 2023. In 2022, Hansen sponsored a bill to put Amendment C on the ballot. Amendment C would have required that citizen initiatives or legislatively referred ballot measures that increase taxes or fees or that require the state to appropriate $10 million or more in the first five fiscal years receive a three-fifths (60%) supermajority vote. Voters rejected the amendment 67.4%-32.6%.