Balance of Power:
In 2026, 25 of 50 seats are up for election. This year, the seats on the ballot represent Iowa's odd-numbered Senate districts. Even-numbered districts are not on the ballot.
Currently, Republicans control the majority in the chamber, with 32 elected representatives against the Democrats' elected 17. One seat, previously held by a Republican, is currently vacant. A supermajority in the chamber is attained when 34 seats are held by one party.
In the 2026 election cycle, six candidates are running unopposed. Prior to election results being reported, there are 21 members of the GOP and 10 members of the Democratic party known to be part of the new Senate.
Election Results
Senate members
Known members of the next Senate, prior to results being reported, are:
| District: Candidate - Party | District: Candidate - Party | District: Candidate - Party |
| District 2: Jeff Taylor — Republican | District 4: Tim Kraayenbrink — Republican | District 6: Jason Schultz — Republican |
| District 7: Kevon Alons — Republican (unopposed) | District 8: Mark Costello — Republican | District 10: Dan Dawson — Republican |
| District 12: Amy Sinclair — Republican | District 14: Sarah Trone Garriott — Democrat | District 15: Tony Bisignano — Democrat (unopposed) |
| District 16: Renee Hardman — Democrat | District 18: Janet Petersen — Democrat | District 20: Mike Pike — Republican |
| District 22: Matt Blake — Democrat | District 24: Jesse Green — Republican | District 26: Kara Warme — Republican |
| District 27: Annette Sweeney — Republican (unopposed) | District 28: Dennis Guth — Republican | District 30: Doug Campbell — Republican |
| District 31: Timi Brown Powers — Democrat (unopposed) | District 32: Mike Klimesh — Republican | District 34: Dan Zumbach — Republican |
| District 36: Thomas Townsend — Democrat | District 38: Dave Sires — Republican | District 40: Art Staed — Democrat |
| District 42: Charlie McClintock — Republican | District 43: Meghann Foster — Democrat (unopposed) | District 44: Adrian Dickey — Republican |
| District 45: Janice Weiner — Democrat (unopposed) | District 46: Dawn Driscoll — Republican | District 48: Mark S. Lofgren — Republican |
| District 50: Jeff Reichman — Republican |
Iowa Senate Districts
Iowa's current Senate districts were set in a special legislative session in late 2021, and are in place until 2031.
The Iowa Senate:
Iowa's Senate is one half of the legislating body in the state of Iowa. The House of Representatives and Iowa Senate combined represent the legislative branch of Iowa government. The Senate is empowered to create laws and establish the state budget. Elected senators are responsible for passing bills on public policy, setting levels for state spending, raising and lowering taxes and voting to uphold or override gubernatorial vetoes. Senators are also responsible for approving agency appointments made by the governor.
The Senate is comprised of 50 individuals, representing individual districts throughout Iowa. All senators are elected to serve a four-year term on a staggered basis of odd and even districts.