Iowa 2024 Presidential Election Polls
Harris vs. Trump
| Source | Date | Sample | Harris | Trump | Other | |
|---|---|---|---|---|---|---|
| Average of 4 Polls† | 45.3% | 50.0% | - | |||
| InsiderAdvantage | 11/04/2024 | 800 LV ±3.5% | 46% | 52% | 2% | |
| Selzer & Company | 11/02/2024 | 808 LV ±3.4% | 47% | 44% | 9% | |
| Emerson College | 11/02/2024 | 800 LV ±3.4% | 43% | 53% | 4% | |
| Cygnal | 10/02/2024 | 600 LV ±4% | 45% | 51% | 4% | |
| Selzer & Company | 9/15/2024 | 656 LV ±3.8% | 43% | 47% | 10% | |
Harris vs. TrumpIncluding Third Parties and Independents
A separate average calculation for the subset of polls that have a question that names one or more notable candidates in addition to Harris and Trump. The inclusion of these names can significantly influence the polling average.
| Source | Date | Sample | Harris | Stein | Kennedy | West | Oliver | Trump | Other | |
|---|---|---|---|---|---|---|---|---|---|---|
| Selzer & Company | 11/02/2024 | 808 LV ±3.4% | 47% | - | 3% | - | 0% | 44% | 6% | |
| Selzer & Company | 9/15/2024 | 656 LV ±3.8% | 43% | - | 6% | - | 1% | 47% | 3% | |
Biden vs. TrumpIncludes polls recorded through the president' withdrawal from the race on July 21, 2024.
| Source | Date | Sample | Biden | Trump | Other | |
|---|---|---|---|---|---|---|
| Average of 2 Polls† | 35.5% | 50.5% | - | |||
| Cygnal | 7/15/2024 | 600 LV ±4% | 39% | 51% | 10% | |
| Selzer & Company | 6/17/2024 | 632 LV ±3.9% | 32% | 50% | 18% | |
| Selzer & Company | 3/05/2024 | 640 LV ±3.9% | 33% | 48% | 19% | |
| Cygnal | 2/16/2024 | 600 LV ±4% | 40% | 49% | 11% | |
| Emerson College | 12/20/2023 | 1,094 RV ±2.9% | 40% | 48% | 12% | |
| Emerson College | 10/13/2023 | 464 RV ±4.3% | 34% | 44% | 22% | |
| Cygnal | 10/04/2023 | 506 LV ±4.3% | 38% | 47% | 15% | |
| Emerson College | 9/12/2023 | 896 RV ±3.2% | 39% | 50% | 11% | |
| Emerson College | 5/25/2023 | 1,064 RV ±2.9% | 38% | 49% | 13% | |
| Cygnal | 4/10/2023 | 600 LV ±3.9% | 40% | 46% | 14% | |
Biden vs. TrumpIncluding Third Parties and Independents
A separate average calculation for the subset of polls that have a question that names one or more notable candidates in addition to Biden and Trump. The inclusion of these names can significantly influence the polling average.
| Source | Date | Sample | Biden | Stein | Kennedy | West | Oliver | Trump | Other | |
|---|---|---|---|---|---|---|---|---|---|---|
| Selzer & Company | 6/17/2024 | 632 LV ±3.9% | 32% | - | 9% | - | 2% | 50% | 7% | |
†The average includes the most recent poll from each source released within two weeks of the November 5 election. If there are fewer than five, the window is expanded to 30 days or five polls from the date of the most recent poll, whichever comes first. In the latter scenario, if there are multiple qualifying polls on the same calendar date as the oldest poll used, those will also be included.
When did it last happen?
This feature shows the most recent election where the state voted with or against the presidential winner in each party. Click the year to see the corresponding electoral map and results.
