Poll Chart

2016 Iowa Republican Presidential Caucus

Currently tracking 96 polls from 33 pollsters
Updated 5 months ago
Election on February 1, 2016 results

This chart combines the latest opinion polls into trendlines and is updated whenever a new poll is released.

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Our averages don't add up to 100% because we calculate each trendline separately.

Latest Polls

Poll
Carson
Huckabee
Perry
Walker
Santorum
Rubio
Bush
Paul
Kasich
Cruz
Christie
Jindal
Fiorina
Trump
Graham
Pataki
Gilmore
Jan 29 – Jan 31
298 Likely Voters - Republican
3 5 1 22 4 3 4 26 3 2 27
Jan 25 – Jan 31
890 Likely Voters - Republican
8 3 1 17 4 4 2 24 1 2 31
Jan 29 – Jan 30
887 Likely Voters - Republican
9 4 2 19 5 9 4 19 3 4 20
Jan 26 – Jan 29
602 Likely Voters - Republican
10 2 2 15 2 5 2 23 3 2 28
Jan 26 – Jan 27
724 Likely Voters - Republican
7 2 1 13 6 2 4 27 3 3 31
Jan 26 – Jan 27
780 Likely Voters - Republican
9 4 1 14 4 4 2 23 2 3 31 1
Jan 24 – Jan 26
450 Likely Voters - Republican
8 2 18 4 2 2 25 2 2 32
Jan 23 – Jan 26
500 Likely Voters - Republican
10 3 1 16 4 3 3 23 2 2 30 0
ARG
Jan 21 – Jan 24
400 Likely Voters - Republican
7 2 1 11 3 4 3 26 4 1 33 0
Jan 18 – Jan 24
651 Likely Voters - Republican
7 2 0 13 4 5 1 29 3 1 31
Jan 5 – Jan 22
185 Likely Voters - Republican
13 4 1 12 4 7 1 26 1 1 19
Jan 18 – Jan 21
492 Likely Voters - Republican
5 0 1 13 1 3 1 34 2 1 39 0
FOX
Jan 18 – Jan 21
378 Likely Voters - Republican
7 2 2 12 4 6 2 23 4 1 34 0
Jan 18 – Jan 20
271 Likely Voters - Republican
9 2 14 5 3 3 23 5 2 33
CNN
Jan 15 – Jan 20
266 Likely Voters - Republican
6 3 1 14 3 2 1 26 1 1 37
Jan 18 – Jan 19
687 Likely Voters - Republican
11 4 1 9 7 3 3 27 4 3 25 1
Jan 13 – Jan 18
500 Likely Voters - Republican
8 3 1 13 6 3 4 25 3 2 26
Jan 11 – Jan 12
422 Likely Voters - Republican
9 2 0 5 4 3 4 28 5 1 34
Jan 8 – Jan 10
530 Likely Voters - Republican
8 3 2 13 6 3 3 26 3 3 28 0
Jan 7 – Jan 10
500 Likely Voters - Republican
11 3 1 12 4 5 2 25 3 2 22 0
ARG
Jan 6 – Jan 10
600 Likely Voters - Republican
8 2 2 10 3 4 3 25 6 1 29
Jan 5 – Jan 10
602 Likely Voters - Republican
7 3 1 15 3 2 2 29 4 1 31
Jan 4 – Jan 8
504 Likely Voters - Republican
6 2 1 12 5 4 3 31 4 3 24 0
FOX
Jan 4 – Jan 7
504 Likely Voters - Republican
9 2 1 15 7 5 1 27 4 1 23
Jan 2 – Jan 7
456 Likely Voters - Republican
11 2 13 4 5 2 28 3 3 24
Dec 18 – Dec 21, 2015
440 Likely Voters - Republican
7 4 0 9 4 1 2 31 3 3 31 1 1
Dec 14 – Dec 17, 2015
534 Likely Voters - Republican
6 2 1 12 2 2 1 40 1 2 31 0 0 0
Dec 10 – Dec 13, 2015
522 Likely Voters - Republican
10 3 1 14 7 2 2 25 3 3 28 1 0 0
Dec 4 – Dec 13, 2015
874 Likely Voters - Republican
10 1 0 14 5 4 1 27 3 3 28 0 0
Dec 7 – Dec 10, 2015
499 Likely Voters - Republican
11 2 1 11 6 2 1 30 0 3 23 0
FOX
Dec 7 – Dec 10, 2015
450 Likely Voters - Republican
10 1 0 13 5 5 1 28 2 2 26 0 1 0
Dec 7 – Dec 10, 2015
400 Likely Voters - Republican
13 3 1 10 6 3 2 31 3 1 21 0 0 0
Dec 3 – Dec 6, 2015
425 Likely Voters - Republican
13 2 1 17 6 4 3 24 2 3 19 0 0 0
CNN
Nov 28 – Dec 6, 2015
552 Likely Voters - Republican
16 2 1 11 4 3 1 20 2 3 33 0 0 0
Nov 16 – Nov 22, 2015
600 Likely Voters - Republican
18 2 2 13 4 5 1 23 2 3 25 0 0
Nov 15 – Nov 19, 2015
657 Likely Voters - Republican
19 1 2 11 5 2 1 21 2 2 4 30
Nov 10 – Nov 16, 2015
239 Registered Voters - Republican
17 2 1 12 9 3 1 9 3 1 4 29 0
Nov 2 – Nov 15, 2015
518 Likely Voters - Republican
27 1 0 17 5 3 1 9 0 2 15 0
CNN
Oct 29 – Nov 4, 2015
548 Likely Voters - Republican
23 2 0 13 5 2 2 11 3 4 4 25 2 0 0
Oct 30 – Nov 1, 2015
638 Likely Voters - Republican
21 6 2 10 5 2 2 14 3 6 5 22 0 0 0
Oct 31 – Oct 31, 2015
356 Likely Voters - Republican
22 1 0 18 6 2 3 9 2 2 5 29 0
Oct 29 – Oct 31, 2015
874 Likely Voters - Republican
28 2 1 10 9 2 2 15 2 1 4 20 0 0 0
Oct 22 – Oct 25, 2015
400 Likely Voters - Republican
32 2 1 10 8 3 2 10 1 2 5 18 0 0 0
Oct 19 – Oct 22, 2015
500 Likely Voters - Republican
31 1 0 10 7 2 1 6 2 5 2 19 0 0
Oct 15 – Oct 22, 2015
529 Likely Voters - Republican
27 2 2 9 6 3 2 12 1 2 3 27 0 0 0
Oct 14 – Oct 20, 2015
574 Likely Voters - Republican
28 2 1 13 5 6 3 10 1 3 5 20
Oct 16 – Oct 19, 2015
401 Likely Voters - Republican
28 3 2 9 5 5 2 10 1 2 4 19 0 0 0
Oct 3 – Oct 4, 2015
500 Likely Voters - Republican
21 3 1 11 10 1 2 5 1 10 16
Sep 23 – Sep 30, 2015
431 Registered Voters - Republican
19 5 1 6 7 4 3 6 4 6 8 24 1 0 0
Sep 25 – Sep 27, 2015
454 Likely Voters - Republican
14 2 1 9 7 2 3 11 1 2 10 19 2 0
Sep 18 – Sep 20, 2015
488 Likely Voters - Republican
17 6 5 1 8 6 4 2 8 1 4 13 24 0 0 0
Sep 3 – Sep 10, 2015
705 Likely Voters - Republican
25 4 0 5 3 6 3 2 2 10 1 2 4 29 0 0 1
Aug 27 – Sep 8, 2015
1,038 Likely Voters - Republican
21 4 1 3 1 5 6 4 5 9 1 2 5 27 1 0
Aug 26 – Sep 2, 2015
390 Registered Voters - Republican
22 3 0 5 1 4 6 5 2 4 2 4 5 29 0 0 0
Aug 29 – Aug 31, 2015
507 Likely Voters - Republican
16 3 1 6 1 6 4 1 1 7 2 5 5 32 0 0
Aug 27 – Aug 30, 2015
405 Likely Voters - Republican
23 2 1 7 2 4 5 3 4 9 1 1 10 23 0 0 0
Aug 24 – Aug 27, 2015
502 Likely Voters - Republican
18 4 1 6 1 4 10 2 3 7 2 1 5 25 0 0
Aug 23 – Aug 26, 2015
400 Likely Voters - Republican
18 4 1 8 1 6 6 4 2 8 2 2 5 23 0 0 0
CNN
Aug 7 – Aug 11, 2015
544 Likely Voters - Republican
14 7 1 9 1 5 5 5 2 8 3 2 7 22 2 0 0
Aug 7 – Aug 10, 2015
500 Likely Voters - Republican
9 2 1 12 1 10 5 2 3 7 2 1 7 17 0 0 0
Aug 7 – Aug 9, 2015
619 Likely Voters - Republican
12 6 2 12 2 6 11 3 3 9 1 2 10 19 0 0 0
Jul 29 – Jul 29, 2015
277 Likely Voters - Republican
5 6 2 15 3 3 10 1 5 6 1 7 4 31 1 1
Jul 14 – Jul 21, 2015
342 Likely Voters - Republican
8 7 3 19 0 4 12 5 2 4 2 1 1 17 1 0 0
Jul 16 – Jul 19, 2015
452 Likely Voters - Republican
8 6 3 22 3 5 7 5 2 7 1 4 3 13 0 1 0
Jun 27 – Jun 29, 2015
997 Likely Voters - Republican
5 10 4 18 4 9 12 10 1 8 5 2 3 7 0 0
Jun 20 – Jun 29, 2015
666 Likely Voters - Republican
10 5 4 18 4 7 8 9 2 9 1 3 3 10 1 0
Jun 8 – Jun 10, 2015
1,235 Likely Voters - Republican
13 8 7 19 2 9 11 5 2 6 3 2 3 2 2 1
May 31 – Jun 8, 2015
265 Registered Voters - Republican
5 10 18 7 10 10 4 6 2 5
May 25 – May 29, 2015
402 Likely Voters - Republican
10 9 3 17 6 6 9 10 2 5 4 1 2 4 1 0
Apr 25 – May 4, 2015
667 Likely Voters - Republican
7 11 3 21 2 13 5 13 2 12 3 1 2 0
Apr 23 – Apr 26, 2015
462 Likely Voters - Republican
7 10 4 23 13 12 10 8 5
Apr 21 – Apr 23, 2015
509 Likely Voters - Republican
6 9 3 13 4 10 10 6 1 7 5 1 1 3 0
Apr 9 – Apr 15, 2015
400 Likely Voters - Republican
8 11 2 20 4 6 7 10 9 2 1 1 2 0
Apr 13 – Apr 13, 2015
388 Likely Voters - Republican
9 8 13 2 12 16 9 6 5 3
Mar 20 – Mar 20, 2015
552 Likely Voters - Republican
14 11 29 5 12 5 7 5 3
Feb 16 – Feb 23, 2015
623 Likely Voters - Republican
11 11 3 25 4 4 10 13 0 5 4 2
Feb 12 – Feb 13, 2015
343 Likely Voters - Republican
5 7 24 6 7 10 10 4 9 3
Feb 3 – Feb 10, 2015
321 Likely Voters - Republican
6 17 4 15 5 6 16 7 2 9 1
Jan 26 – Jan 29, 2015
402 Likely Voters - Republican
10 13 3 16 5 4 9 15 1 6 6 2 1 1
Jan 21 – Jan 26, 2015
316 Likely Voters - Republican
13 14 3 10 4 4 13 7 1 5 5 2 1 1
Jan 5 – Jan 7, 2015
404 Registered Voters - Republican
9 10 4 14 8 7 5

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