Iowa 2016 Senate Election Polls

Source Date Sample Grassley Judge Other
Poll Averages† 56.3% 35.0% -
Loras College 11/05/2016 500 LV 53% 37% 10%
Loras College 11/05/2016 500 LV 53% 37% 10%
Selzer & Co. 11/05/2016 800 LV 56% 33% 11%
Emerson College 11/04/2016 700 LV 60% 32% 8%
Quinnipiac 10/28/2016 791 LV 56% 38% 6%
Loras College 9/26/2016 491 LV 54% 37% 9%
Quinnipiac 9/23/2016 612 LV 55% 43% 2%
Monmouth University 9/15/2016 404 LV 56% 39% 5%
RABA Research 9/12/2016 1,054 LV 50% 37% 13%
Public Policy 9/07/2016 827 LV 49% 43% 8%
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†The average includes the most recent poll from each source within the past 30 days, up to a maximum of five. If five polls are found, and there are other qualifying polls on that same calendar date, those will also be included.