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Polls DATA

Iowa governor polls

Every public poll of this race we are allowed to show, newest first, each linked to the pollster’s own release.

6 polls shown. Averages are as of Nov. 5, 2026.

Average of the polls

  • Rob Sand D50.6%2 polls
  • Zach Lahn R45.0%2 polls

Rob Sand leads Zach Lahn by 5.6 points in the average.

Average of the latest poll from each of 2 pollsters with interviews ending Oct. 7, 2026 to Nov. 5, 2026, weighted by recency and sample size. No pollster is adjusted for lean. How averages are computed

Which polls and what weight
Poll byInterviews endedSampleShare of average
Rasmussen ReportsOct. 31, 2026901 lv70.9%
Marist PollOct. 11, 20261,100 lv29.1%

Polls left out of the average:

  • Emerson College Polling, interviews ended Oct. 6, 2026: Its last interview day is more than 30 days before the date of the average.
  • Suffolk University Political Research Center, interviews ended Oct. 4, 2026: Its last interview day is more than 30 days before the date of the average.
  • Marist Poll, interviews ended Sept. 20, 2026: Its last interview day is more than 30 days before the date of the average.
  • Emerson College Polling, interviews ended Sept. 1, 2026: Its last interview day is more than 30 days before the date of the average.

Average over time

Iowa governor: average over timeLine chart of the poll average from Oct. 8, 2026 to Nov. 5, 2026. Latest: Rob Sand 50.6; Zach Lahn 45.0. Dots are single polls.4045505560Oct. 8Oct. 20Nov. 5Rasmussen Reports, Oct. 31, 2026: Rob Sand 50%Rasmussen Reports, Oct. 31, 2026: Zach Lahn 45%Marist Poll, Oct. 11, 2026: Sand 52%Marist Poll, Oct. 11, 2026: Lahn 45%50.645.0
  • Rob Sand
  • Zach Lahn
Lines show the average as of each date, using only polls with interviews ended by then. Dots are single polls. Dates start Oct. 8, 2026.

All polls, newest first

PollInterviewsSampleResultsRelease
Poll by Rasmussen ReportsReleased Nov. 2, 2026901 likely votersmargin of error ±3
  • Rob Sand D 50%
  • Zach Lahn R 45%
  • Not sure 5%
Pollster’s release (opens the pollster’s own page)Telephone and online survey
Poll by Marist PollReleased Oct. 15, 20261,100 likely votersmargin of error ±6.6All 1,100 Iowa registered voters interviewed; the release does not give the likely-voter subsample size.
  • Sand D 52%
  • Lahn R 45%
Pollster’s release (opens the pollster’s own page)Multi-mode: live phone, text and online
Poll by Emerson College Pollingfor Nexstar MediaReleased Oct. 9, 2026650 likely votersmargin of error ±3.8
  • Rob Sand D 49%
  • Zach Lahn R 45%
Pollster’s release (opens the pollster’s own page)Text-to-web (voter file) plus online panel
Poll by Suffolk University Political Research CenterReleased Oct. 7, 2026500 likely votersmargin of error ±4.4
  • Rob Sand D 55%
  • Zach Lahn R 43%
Pollster’s release (opens the pollster’s own page)Live telephone interviews
Poll by Marist PollReleased Sept. 22, 20261,050 registered votersmargin of error ±4.4
  • Sand D 54%
  • Lahn R 42%
Pollster’s release (opens the pollster’s own page)Multi-mode: live phone, text and online
Poll by Emerson College Pollingfor Nexstar MediaReleased Sept. 3, 2026750 likely votersmargin of error ±3.6
  • Rob Sand D 49%
  • Zach Lahn R 46%
Pollster’s release (opens the pollster’s own page)Text-to-web (voter file) plus online panel

Ratings from other outlets DATA

OutletRatingAs ofSource
Inside ElectionsLean DemocratSource (opens Inside Elections’s own page)

Tally: 1 Lean D. A count of these outlets’ published ratings, not our rating.

Also rating races (we link, we do not show their ratings):

This race in the full ratings table → · Outlets and their terms

Polls measure opinion; they do not establish what government did, and a poll is not a forecast. All polls · How averages are computed · Pollsters and their terms · Iowa on Power & Politics