Election 2020 Democratic Primary Polls - Dave Leip's Atlas of U.S. Presidential Elections

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Iowa Polls (Aggregate = Lean Sanders for 3-poll average)

Candidate

Avg.

#Wins

Delegates

Poll Graph

Election Details

Sanders

23%

Election Date: 2020-02-03

Election Type: Caucus

Eligable Voters: Closed

Delegates Total: 49

Delegates Awarded: 41

Apportion Method:

Biden

18%

Warren

15%

Buttigieg

14%

Klobuchar

13%

Other

11%

Undecided

Three-Poll Rolling Average
Rolling Average Poll Graph

Delegates Awarded Prior to this Contest: 0 (0.0%)

Date	Poll Source	Lead	W	B	S	B	B	K	Oth	Und	MOE	Sample	#C
02-02	Emerson College	S+7	14%	21%	28%	15%	0%	11%	9%	2%	3%	853 L
01-30	Other Source	B+2	15%	15%	17%	19%	1%	11%	13%	9%	6%	300 L
01-30	ARG	S+6	15%	17%	23%	9%	2%	16%	12%	6%	4%	400 L
01-29	Data 4 Progress	S+7	21%	15%	28%	15%	0%	8%	11%	2%	5%	615 L
01-28	Other Source	B+2	17%	20%	18%	17%	0%	12%	10%	6%	3%	600 L
01-27	Iowa State University	S+5	19%	15%	24%	17%	0%	11%	0%	14%	5%	655 L
01-27	Monmouth University	B+2	15%	23%	21%	16%	0%	10%	10%	5%	5%	544 L
01-26	Change Research	S+8	15%	18%	27%	19%	0%	10%	8%	3%	3%	704 L	11
01-26	Emerson College	S+9	11%	21%	30%	10%	0%	13%	14%	1%	5%	450 L
01-26	Suffolk University	B+6	13%	25%	19%	18%	0%	6%	6%	13%	4%	500 L
01-23	YouGov	S+1	15%	25%	26%	22%	0%	7%	5%	0%	4%	1,041 L
01-23	Siena Research Institute	S+7	15%	17%	25%	18%	1%	8%	8%	8%	5%	584 L
01-12	Monmouth University	B+6	15%	24%	18%	17%	0%	8%	13%	5%	5%	1,033 L
01-08	Selzer & Co	S+3	17%	15%	20%	16%	1%	6%	14%	11%	4%	701 L
01-03	YouGov	Tie	16%	23%	23%	23%	0%	7%	7%	1%	4%	953 L
12-16	Iowa State University	B+3	18%	15%	21%	24%	0%	4%	11%	7%	4%	632 L
12-10	Emerson College	B+1	12%	23%	22%	18%	0%	10%	15%	0%	5%	325 L
11-19	Iowa State University	B+7	19%	12%	18%	26%	1%	5%	16%	3%	5%	614 L
11-13	YouGov	Tie	18%	22%	22%	21%	0%	5%	11%	1%	4%	856 L
11-13	Selzer & Co	B+9	16%	15%	15%	25%	0%	6%	16%	7%	4%	500 L	70
11-11	Monmouth University	B+3	18%	19%	13%	22%	0%	5%	15%	8%	5%	451 L
11-06	Public Policy Polling	W+1	21%	13%	14%	20%	0%	9%	13%	10%	4%	715 L
11-05	Quinnipiac University	W+1	20%	15%	17%	19%	0%	5%	16%	8%	5%	698 L
10-30	Siena Research Institute	W+3	22%	17%	19%	18%	0%	4%	12%	8%	5%	439 L	67
10-22	Iowa State University	W+8	28%	12%	18%	20%	0%	4%	14%	4%	5%	598 L	37
10-18	Suffolk University	B+1	17%	18%	9%	13%	0%	3%	11%	29%	4%	500 L	28
10-16	Emerson College	Tie	23%	23%	13%	16%	0%	1%	20%	4%	6%	317 L	26
10-11	YouGov	Tie	22%	22%	21%	14%	0%	2%	19%	0%	5%	729 L	40
10-10	Other Source	W+3	25%	22%	5%	17%	0%	0%	6%	25%	4%	548 L	12
09-18	Selzer & Co	W+2	22%	20%	11%	9%	0%	3%	21%	14%	4%	602 L	102
09-17	Iowa State University	W+8	24%	16%	16%	13%	0%	3%	20%	8%	5%	572 L	26
09-04	YouGov	B+3	17%	29%	26%	7%	0%	2%	19%	0%	4%	835 L
08-11	Change Research	W+11	28%	17%	17%	13%	0%	2%	23%	0%	4%	621 L
07-18	YouGov	B+5	17%	24%	19%	7%	0%	4%	29%	0%	4%	706 L
07-01	Suffolk University	B+8	13%	24%	9%	6%	0%	2%	24%	22%	4%	500 L
06-05	Selzer & Co	B+8	15%	24%	16%	14%	0%	2%	17%	12%	5%	600 L
03-24	Emerson College	B+1	9%	25%	24%	11%	0%	2%	25%	4%	6%	249 L
03-06	Selzer & Co	B+2	9%	27%	25%	1%	0%	3%	22%	13%	5%	401 L
02-02	Emerson College	B+11	11%	29%	15%	0%	0%	3%	34%	8%	6%	260 L

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