Prediction Edge

2026 Iowa Elections & races

Track Iowa election odds, candidates, polls, key dates, market volume and race movement across the 2026 races on Prediction Edge.

Overview

Iowa's 2026 ballot is headlined by rare twin open seats: Governor Kim Reynolds is not seeking a third term and Senator Joni Ernst is retiring, leaving both the governorship and a US Senate seat without an incumbent in the same year for the first time since 1968. All four US House districts, the attorney general's office, and other statewide posts are also up on November 3. Iowa's partially open primary, held June 2, has already set the major matchups. This hub connects live market odds with candidate pages, polling context, official dates, and market-moving updates throughout the cycle.

2026 Iowa Election Snapshot

Primary Election
Jun 2, 2026
General Election
Nov 3, 2026
Main Statewide Race
Open seat
Primary System
Partially open primary
Major Offices
Governor, US Senate, US House, Attorney General
Partisan Lean
Lean Republican
Battleground Watch
Early Voting
In-person absentee voting generally runs from 20 days before Election Day through the day before Election Day.
Prediction Edge Coverage
Odds, polls, candidates, market volume, race pages and alerts

Key Iowa Races to Watch in 2026

Iowa Governor Races 2026

Kim Reynolds's decision not to seek a third term makes this Iowa's first open governor's race since 2006. The June 2 primary set the matchup: businessman Zach Lahn, who narrowly cleared Iowa's 35 percent threshold, against State Auditor Rob Sand.

See all Governor races

Iowa US Senate Races 2026

Joni Ernst's retirement leaves Iowa's Class 2 Senate seat open, with June 2 primary winners Republican Ashley Hinson and Democrat Josh Turek now the major-party nominees. One tracked market covers the separate 2028 race for Iowa's other Senate seat.

Iowa Senate winner? (Person)
$11.5KNov 7, 2026
See all US Senate races

Iowa US House Races 2026

Markets track three of Iowa's four districts. IA-02 and IA-04 are open seats after Ashley Hinson's Senate bid and Randy Feenstra's run for governor, while IA-03 Republican incumbent Zach Nunn faces Democrat Sarah Trone Garriott.

See all US House races

Iowa Attorney General Races 2026

Republican incumbent Brenna Bird, who passed on the governor's race to seek a second term, faces Democrat Nate Willems, an attorney and former state legislator. Both were unopposed in the June 2 primaries.

Who will win the Attorney General race in Iowa?
$21.1KNov 7, 2026
See all Attorney General races

2026 Iowa Elections Calendar

  1. Iowa 2026 primary
  2. Iowa 2026 general election
See full calendar

Iowa Candidates Running in 2026

Explore candidate pages for Iowa's major 2026 races — odds, polling, fundraising, endorsements and news.

See all candidates

Iowa Polls, Odds Movement & Market Signals

See all
Polling Average
60%50%40%30%20%10%0%
49.2%
43.9%
41.3%
R. Sand
Z. Lahn
R. Feenstra
Date (Start - End)SpreadSandLahnFeenstra
Polling Average
Sand+5.4
49.2%43.9%41.3%
Beacon Research/Shaw & Co. ResearchJun 23 - 27
Sand+9.0
53.0%44.0%
The New York Times/Siena UniversityJun 15 - 27
Sand+1.0
48.0%47.0%
CygnalJun 16 - 19
Sand+4.3
47.7%43.4%
Global Strategy GroupApr 23 - 28
Sand+9.0
50.0%41.0%
Echelon InsightsApr 3 - 9
Sand+12.0
51.0%39.0%
GBAOMar 10 - 16
Sand+8.0
50.0%42.0%
Z to A ResearchOct 9 - 13
Sand+2.0
45.0%43.0%

2026 Iowa Elections FAQ

When is the 2026 Iowa primary election?
The 2026 Iowa primary election is on Jun 2, 2026.
When is the 2026 Iowa general election?
The 2026 Iowa general election is on Nov 3, 2026.
What races are on the ballot in Iowa in 2026?
Iowa's November 3, 2026 ballot is led by open races for governor and US Senate. All four US House districts are up, including open seats in the 2nd and 4th. Statewide executive offices, including attorney general, secretary of state, auditor, treasurer, and secretary of agriculture, are also on the ballot, along with the full Iowa House, half the Iowa Senate, and judicial retention votes.
How does Iowa's primary work?
Iowa holds party primaries, but any registered voter may take part by declaring or changing party affiliation at the polls, making the system partially open in practice. There is no runoff; when no candidate reaches 35 percent, the nomination passes to a party convention. The 2026 primary took place June 2, and this year's governor nominees cleared the threshold.
Why is the 2026 Iowa Governor race important?
Kim Reynolds's retirement makes 2026 Iowa's first open governor's race since 2006, the last cycle a Democrat won the office. With no incumbent running, the June 2 primaries produced a general-election matchup between Republican Zach Lahn and Democrat Rob Sand, and the outcome will shape state policy on taxes, education, and more alongside an equally open US Senate contest.
Where can I follow Iowa election odds?
Follow live Iowa election odds, candidate standings, polls and market-moving updates on this Prediction Edge Iowa hub.

2026 Statewide Elections and Races