Ken Rozenboom

Ken Rozenboom
President pro tempore of the Iowa Senate
Incumbent
Assumed office
January 13, 2025
Preceded byBrad Zaun
Member of the Iowa Senate
Incumbent
Assumed office
January 14, 2013
Preceded byJames F. Hahn
Constituency40th district (2013–2023)
19th district (2023–present)
Personal details
BornSeptember 1951 (age 73)
Oskaloosa, Iowa, U.S.
Political partyRepublican
SpouseBecky Goemaat[1]
Children2
EducationCalvin University

Kenneth John Rozenboom[1] (born September 5, 1951) is the Iowa State Senator from the 19th District.[2] A Republican, he has served in the Iowa Senate since being elected in 2013.

Biography

Born in Oskaloosa to Jacob Gerald Rozenboom (1922-2019) and Clarissa Henrietta (Stek) Rozenboom (1921-2022).[1][3] He has 5 siblings: Allan, Calvin, Norman, Kathleen and David.[1][3] His brother, Calvin, died in 2024.[4]

His parental grandparents were Geurt and Maatje (Van Snippenberg) Rozenboom, who came to the US in 1910 from the Netherlands.[3] They changed their names to George and Martha.[3]

His dad served in World War II in France, Germany and Belgium.[3] His mother was a schoolteacher.[1] His father died at age 97.[3] His mother died two months shy of her 101st birthday in 2022.[1]

In 1962, his brother Allan died at age 15, suffering from Hodgkin's Disease.[1][3] His mother's brother, Gordon, had Cerebral palsy.[1]

He was raised in Oskaloosa. Rozenboom graduated Pella Christian High School before attending Calvin College in Michigan. After college, he returned home to work on the family farm along with also working as a sales production manager. He stepped into politics when he became Mahaska County Supervisor in 2010, going on to serve two years until 2012. He currently resides in Oskaloosa with his wife Becky. They have two children and four grandchildren.[5]

Iowa Senate

Committee Assignments

Rozenboom served on the Natural Resources and Environment and the Rules and Administration Committees.[6] In 2014, in addition to his first two committees, he joined the Appropriations Committe, Veterans Affairs Committee and Agriculture and Natural Resources Appropriations Subcommittee.[7]

Rozenboom served on the Agriculture Committee, Natural Resources and Environment Committee, Appropriations Committe, Veterans Affairs Committee and Agriculture and Natural Resources Appropriations Subcommittee from 2013 to 2017.[6][7][8] From 2015 to 2017, he was Ranking Member of the Natural Resources and Environment Committee and Agriculture and Natural Resources Appropriations Subcommittee.[8] In 2019, he left the Veterans Affairs Committee and went to the Education Committee, in addition to the rest of his committees.[9] He was also the Vice Chair on the Agriculture and Natural Resources Appropriations Subcommittee and Chair of the Natural Resources and Environment Committee from 2019 to 2022.[9] In 2021, he was the Chair on the Agriculture and Natural Resources Appropriations Subcommittee.[10]

In the 2020 session, Rozenboom served on the Natural Resources and Environment, Agriculture, Appropriations, Education, and State Government, Agriculture Committees and Natural Resources Appropriations Subcommittee and Flood Mitigation Board.[2]

In the 2023-2024 session, Rozenboom was the Chair of the Education Committee, Vice Chair of the Agriculture Committee and member of the Natural Resources and Environment and Transportation Committees.[11]

In the 2025 session, Rozenboom served as a member on the Natural Resources and Environment committee, Rules and Administration committee, Transportation committee; as Vice Chair on the Agriculture committee and on the Ethics committee and as Chair of the State Government committee.[12]

Hoover Award

In March 2019, Rozenboom was awarded the Herbert Hoover Award for his years of service to the community.[13]

Retirement

In December 2021, due to redistricting, Rozenboom announced that he would not seek re-election to the Iowa Senate following changes caused by redistricting which affected his current representation.[14] In February 2022, he reversed his decision and ran in the 2022 Senate election for the 19th district.[15] He subsequently won by over 30%.[16]

President Pro Tempore

On January 13, 2025, Senator Tim Kraayenbrink nominated Rozenboom to be the President pro tempore of the Senate, which he was elected unanimously.[17][18]

Electoral history

2012 Iowa 40th District Senate Election Results[19]
Party Candidate Votes % ±%
Republican Ken Rozenboom 17,628 57.25%
Democratic Tim Tripp 11,670 37.90%
Write-ins, Under and over votes 1,495 4.85%
Turnout 30,793 100.00%
2016 Iowa 40th District Senate Election Results[20]
Party Candidate Votes % ±%
Republican Ken Rozenboom 23,768 77.2%
Democratic No candidate 0%
Write-ins, Under and over votes 7,016 22.79%
Turnout 30,784 100.00%
2020 Iowa 40th District Senate Election Results[21]
Party Candidate Votes % ±%
Republican Ken Rozenboom 22,022 67.69%
Democratic Lance Roorda 8,760 26.91%
Write-ins, Under and over votes 1,760 5.4%
Turnout 32,542 100.00%
2022 Iowa 19th District Senate Election Results[16]
Party Candidate Votes % ±%
Republican Ken Rozenboom 18,118 67.12%
Democratic Tyler Stewart 8,283 30.69%
Write-ins, Under and over votes 589 2.1%
Turnout 26,990 100.00%

References

  1. ^ a b c d e f g h "Clarissa Rozenboom". April 11, 2022. Retrieved August 8, 2025.
  2. ^ a b "State Senator". www.legis.iowa.gov. Retrieved 2020-02-06.
  3. ^ a b c d e f g "John Gerald Rozenboom". September 1, 2019. Retrieved August 8, 2025.
  4. ^ "Calvin Leon Rozenboom". September 24, 2024. Retrieved August 8, 2025.
  5. ^ "The Voter's Self Defense System". Vote Smart. Retrieved February 6, 2020.
  6. ^ a b "Journal of the Senate, 1-15-2013" (PDF). Iowa Senate. January 15, 2013. p. 16. Retrieved August 8, 2025.
  7. ^ a b "Journal of the Senate, 1-13-2014" (PDF). Iowa Senate. January 13, 2014. p. 16. Retrieved August 8, 2025.
  8. ^ a b "Journal of the Senate, 1-12-2015" (PDF). Iowa Senate. January 12, 2015. p. 31-34. Retrieved August 8, 2025.
  9. ^ a b "Journal of the Senate, 1-14-2019" (PDF). Iowa Senate. January 14, 2019. p. 66. Retrieved August 8, 2025.
  10. ^ "Journal of the Senate, 1-11-2021" (PDF). Iowa Senate. January 11, 2021. p. 52. Retrieved August 8, 2025.
  11. ^ "Journal of the Senate, 1-09-2023" (PDF). Iowa Senate. January 9, 2023. p. 58. Retrieved August 8, 2025.
  12. ^ "Journal of the Senate, 1-13-2025" (PDF). Iowa Senate. January 13, 2025. p. 50. Retrieved August 8, 2025.
  13. ^ "Senator Rozenboom Receives Herbert Hoover Award". KNIA KRLS Radio - The One to Count On. Retrieved 2020-02-06.
  14. ^ "Rozenboom announces retirement from Iowa Senate". The Oskaloosa Herald. December 8, 2010. Retrieved December 10, 2021.
  15. ^ "Rozenboom reverses retirement, will run for new Senate district". The Oskaloosa Herald. February 16, 2021. Retrieved August 8, 2025.
  16. ^ a b "2022 General Election" (PDF). Iowa Secretary of State. p. 87. Retrieved August 8, 2025.
  17. ^ "Election of President Pro Tempore" (PDF). Iowa Senate. p. 3. Retrieved August 8, 2025.
  18. ^ "Leadership". Iowa Legislature. Retrieved August 8, 2025.
  19. ^ "2012 General Election" (PDF). Iowa Secretary of State. p. 40. Retrieved August 8, 2025.
  20. ^ "2014 General Election" (PDF). Iowa Secretary of State. p. 58. Retrieved August 8, 2025.
  21. ^ "2020 General Election" (PDF). Iowa Secretary of State. p. 57. Retrieved August 8, 2025.
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