Seventh in a series interpreting the results of Iowa’s 2024 state and federal elections.

Republicans will hold 35 of the 50 Iowa Senate seats when the legislature reconvenes in 2025, a net gain of one from the 34-16 GOP majority of the past two years. The results were finalized on November 22 and November 25 following recounts in two close races.

According to the legislature’s official website, the fifteen-member Democratic caucus will be the smallest contingent for the party in the Iowa Senate since the early 1960s. Maintaining a two-thirds majority means Republicans will be able to confirm Governor Kim Reynolds’ nominees without any Democratic support.

Redistricting played a role in all three districts where party control changed. The demise of ticket-splitting was also apparent, as three incumbents lost in areas where their constituents preferred the other party’s presidential nominee.