Iowa 2016 Senate Election Polls

Source Date Sample Judge Grassley Other
11/05/2016 500 LV ±4.4% 37% 53% 10%
11/05/2016 500 LV ±4.4% 37% 53% 10%
11/05/2016 800 LV ±3.5% 33% 56% 11%
11/04/2016 700 LV ±3.6% 32% 60% 8%
10/28/2016 791 LV ±3.5% 38% 56% 6%
9/26/2016 491 LV ±4.4% 37% 54% 9%
9/23/2016 612 LV ±4% 43% 55% 2%
9/15/2016 404 LV ±4.9% 39% 56% 5%
9/12/2016 1,054 LV ±3% 37% 50% 13%
9/07/2016 827 LV 43% 49% 8%
9/02/2016 600 LV ±3.9% 40% 51% 9%
8/21/2016 987 LV ±4% 38% 45% 17%
8/18/2016 846 LV ±3.4% 42% 51% 7%
8/09/2016 899 RV ±3.3% 42% 52% 6%
7/14/2016 822 RV ±3.4% 42% 52% 6%
7/12/2016 401 LV ±4.9% 42% 52% 6%
6/30/2016 600 RV ±4% 45% 46% 9%
6/28/2016 897 RV ±3.3% 39% 46% 15%
6/16/2016 630 RV 41% 48% 11%
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