Iowa 2016 Presidential Election Polls

Clinton vs. Trump

Source Date Sample Clinton Trump Other
Poll Averages† 42.8% 45.2% -
Loras College 11/05/2016 500 LV ±4.4% 44% 43% 13%
Selzer & Company 11/05/2016 800 LV ±3.5% 39% 46% 15%
Emerson College 11/04/2016 700 LV ±3.6% 41% 44% 15%
RABA Research 11/03/2016 1,076 LV ±3% 44% 46% 10%
Quinnipiac 10/27/2016 791 LV ±3.5% 46% 47% 7%
Washington Post / Survey Monkey 10/18/2016 1,135 LV 44% 49% 7%
Selzer & Company 10/08/2016 642 LV ±3.9% 39% 43% 18%
Loras College 9/26/2016 491 LV ±4.4% 38% 38% 24%
Quinnipiac 9/22/2016 612 LV ±4% 44% 50% 6%
Monmouth University 9/15/2016 404 LV ±4.9% 37% 45% 18%
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†The average includes the most recent poll from each source within the past ten days. If there are fewer than five qualifying polls, we look back, by date, until up to five qualifying polls are found. If five polls are found, and there are other qualifying polls on that same calendar date, those will also be included. No polls older than 30 days are considered in the average.

Including Johnson and/or Stein

Source Date Sample Clinton Trump Johnson Stein Other
Poll Averages† 41.8% 44.2% 4.6% 2.2% -
Loras College 11/05/2016 500 LV ±4.4% 44% 43% 3% 3% 7%
Selzer & Company 11/05/2016 800 LV ±3.5% 39% 46% 6% 1% 8%
Emerson College 11/04/2016 700 LV ±3.6% 41% 44% 5% 4% 6%
RABA Research 11/03/2016 1,076 LV ±3% 41% 44% 5% 2% 8%
Quinnipiac 10/27/2016 791 LV ±3.5% 44% 44% 4% 1% 7%
Washington Post / Survey Monkey 10/18/2016 1,135 LV 40% 45% 10% 2% 3%
Selzer & Company 10/08/2016 642 LV ±3.9% 39% 43% 6% 2% 10%
Loras College 9/26/2016 491 LV ±4.4% 38% 38% 9% 1% 14%
Quinnipiac 9/22/2016 612 LV ±4% 37% 44% 10% 2% 7%
Monmouth University 9/15/2016 404 LV ±4.9% 37% 45% 8% 2% 8%
Show:

†The average includes the most recent poll from each source within the past ten days. If there are fewer than five qualifying polls, we look back, by date, until up to five qualifying polls are found. If five polls are found, and there are other qualifying polls on that same calendar date, those will also be included. No polls older than 30 days are considered in the average.

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.
Iowa Winner
Trump
Trump
Obama
Gore
Election Winner
Biden
Trump
Obama
Bush
2020
2016
2012
2000