Iowa Governor polling average
Iowa Governor: Monolith Average
Rob Sand (D) · Zach Lahn (R)
Rating: Cook: Lean D (via NPR) (2026-10-29)
Monolith Average · nonpartisan polls
D+5.5
Rob Sand (D) 50.3% · Zach Lahn (R) 44.8%
7 pollsters
7 pollsters
Monolith Average (All Polls)
D+5.5
Rob Sand (D) 50.3% · Zach Lahn (R) 44.8%
7 pollsters
7 pollsters
Updated 2026-10-30 14:41 CT. Margin = first-listed candidate minus second; undecided voters are not allocated. Polls from the last 30 days; each pollster counts once (its latest poll); weights favor larger, newer polls. How we calculate this.
Monolith Average: daily margin since Oct. 1
Above the dashed line = first-listed candidate leads (positive margin); gaps = fewer than 2 pollsters that day.
Monolith Average (All Polls): daily margin since Oct. 1
Above the dashed line = first-listed candidate leads (positive margin); gaps = fewer than 2 pollsters that day.
Polls
| Pollster | Dates | Sample | Sand | Lahn | Other | Sponsor type | Used in | Source | Notes |
|---|---|---|---|---|---|---|---|---|---|
| co/efficient | 2026-10-28 to 2026-10-28 | 1020 LV | 50.0 | 45.0 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text | |
| Echelon Insights for NetChoice | 2026-10-16 to 2026-10-23 | 403 LV | 50.0 | 46.0 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text | |
| co/efficient | 2026-10-15 to 2026-10-19 | 863 LV | 49.0 | 45.0 | Nonpartisan | Superseded by newer poll | source | Approved: automatic: both figures found next to the names in the release text | |
| New River for The Cook Political Report | 2026-10-09 to 2026-10-13 | 602 LV | 54.0 | 43.0 | Nonpartisan | Superseded by newer poll | source | ||
| YouGov | 2026-10-06 to 2026-10-12 | 2245 LV | 50.0 | 44.0 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text | |
| National Public Affairs | 2026-10-08 to 2026-10-12 | 678 LV | 50.0 | 45.0 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text | |
| Marist University | 2026-10-08 to 2026-10-11 | 1100 LV | 52.0 | 45.0 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text | |
| Emerson College for Nexstar Media | 2026-10-05 to 2026-10-06 | 650 LV | 49.0 | 45.3 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text | |
| CNN/SSRS | 2026-09-29 to 2026-10-05 | 801 LV | 51.0 | 42.0 | Nonpartisan | Superseded by newer poll | source | ||
| The New York Times/Siena University | 2026-09-22 to 2026-10-01 | 606 LV | 52.0 | 41.0 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text |
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