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UPDATED Apr. 27, 2019 at 2:39 PM
| Dates | Pollster | Sample | Result | Net result | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| President: Democratic primary | |||||||||||||||||
| President: Democratic primary | • | Iowa | Iowa Apr 17-18, 2019 590 LV | Apr 17-18, 2019 | 590 | LV | Sanders | 19% | Tie | Sanders 19% Biden 19% Buttigieg 14% Harris 6% Warren 6% O'Rourke 5% Booker 4% Klobuchar 4% Delaney 2% Gabbard 1% Gravel 1% Yang 1% Hickenlooper 1% Gillibrand 1% Inslee 0% Castro 0% | More | Even | |||||
| Biden | 19% | ||||||||||||||||
| Buttigieg | 14% | ||||||||||||||||
| Harris | 6% | ||||||||||||||||
| Warren | 6% | ||||||||||||||||
| O'Rourke | 5% | ||||||||||||||||
| Booker | 4% | ||||||||||||||||
| Klobuchar | 4% | ||||||||||||||||
| Delaney | 2% | ||||||||||||||||
| Gabbard | 1% | ||||||||||||||||
| Gravel | 1% | ||||||||||||||||
| Yang | 1% | ||||||||||||||||
| Hickenlooper | 1% | ||||||||||||||||
| Gillibrand | 1% | ||||||||||||||||
| Inslee | 0% | ||||||||||||||||
| Castro | 0% | ||||||||||||||||
Key
A = ADULTS
RV = REGISTERED VOTERS
V = VOTERS
LV = LIKELY VOTERS
| President: Democratic primary | |||||||||||||||
| President: Democratic primary | • | Iowa | Iowa Apr 4-9, 2019 351 LV | Apr 4-9, 2019 | 351 | LV | Biden | 27% | Biden 27% Sanders 16% Buttigieg 9% Harris 7% Warren 7% O'Rourke 6% Klobuchar 4% Booker 3% Castro 2% Delaney 1% Gillibrand 1% Ryan 1% Swalwell 1% Yang 1% Bullock 0% de Blasio 0% Gabbard 0% Inslee 0% Bennet 0% Hickenlooper 0% McAuliffe 0% Messam 0% Moulton 0% Williamson 0% | More | Biden | +11 | |||
| Sanders | 16% | ||||||||||||||
| Buttigieg | 9% | ||||||||||||||
| Harris | 7% | ||||||||||||||
| Warren | 7% | ||||||||||||||
| O'Rourke | 6% | ||||||||||||||
| Klobuchar | 4% | ||||||||||||||
| Booker | 3% | ||||||||||||||
| Castro | 2% | ||||||||||||||
| Delaney | 1% | ||||||||||||||
| Gillibrand | 1% | ||||||||||||||
| Ryan | 1% | ||||||||||||||
| Swalwell | 1% | ||||||||||||||
| Yang | 1% | ||||||||||||||
| Bullock | 0% | ||||||||||||||
| de Blasio | 0% | ||||||||||||||
| Gabbard | 0% | ||||||||||||||
| Inslee | 0% | ||||||||||||||
| Bennet | 0% | ||||||||||||||
| Hickenlooper | 0% | ||||||||||||||
| McAuliffe | 0% | ||||||||||||||
| Messam | 0% | ||||||||||||||
| Moulton | 0% | ||||||||||||||
| Williamson | 0% | ||||||||||||||
| President: Democratic primary | |||||||||||||||
| President: Democratic primary | • | Iowa | Iowa Mar 21-24, 2019 500 LV | Mar 21-24, 2019 | 500 | LV | Biden | 25% | Biden 25% Sanders 17% Harris 9% Warren 8% Booker 7% Buttigieg 6% Klobuchar 6% O'Rourke 6% Delaney 3% Castro 1% Gabbard 1% Gillibrand 1% Inslee 1% Swalwell 1% Yang 1% Bennet 0% Bullock 0% Hickenlooper 0% McAuliffe 0% Williamson 0% | More | Biden | +8 | |||
| Sanders | 17% | ||||||||||||||
| Harris | 9% | ||||||||||||||
| Warren | 8% | ||||||||||||||
| Booker | 7% | ||||||||||||||
| Buttigieg | 6% | ||||||||||||||
| Klobuchar | 6% | ||||||||||||||
| O'Rourke | 6% | ||||||||||||||
| Delaney | 3% | ||||||||||||||
| Castro | 1% | ||||||||||||||
| Gabbard | 1% | ||||||||||||||
| Gillibrand | 1% | ||||||||||||||
| Inslee | 1% | ||||||||||||||
| Swalwell | 1% | ||||||||||||||
| Yang | 1% | ||||||||||||||
| Bennet | 0% | ||||||||||||||
| Bullock | 0% | ||||||||||||||
| Hickenlooper | 0% | ||||||||||||||
| McAuliffe | 0% | ||||||||||||||
| Williamson | 0% | ||||||||||||||
| President: Democratic primary | |||||||||||||||
| President: Democratic primary | • | Iowa | Iowa Mar 21-24, 2019 249 LV | Mar 21-24, 2019 | 249 | LV | Biden | 25% | Biden 25% Sanders 24% Buttigieg 11% Harris 10% Warren 9% Booker 6% O'Rourke 5% Klobuchar 2% Hickenlooper 1% Gabbard 1% Castro 1% Inslee 1% Gillibrand 0% Yang 0% | More | Biden | +1 | |||
| Sanders | 24% | ||||||||||||||
| Buttigieg | 11% | ||||||||||||||
| Harris | 10% | ||||||||||||||
| Warren | 9% | ||||||||||||||
| Booker | 6% | ||||||||||||||
| O'Rourke | 5% | ||||||||||||||
| Klobuchar | 2% | ||||||||||||||
| Hickenlooper | 1% | ||||||||||||||
| Gabbard | 1% | ||||||||||||||
| Castro | 1% | ||||||||||||||
| Inslee | 1% | ||||||||||||||
| Gillibrand | 0% | ||||||||||||||
| Yang | 0% | ||||||||||||||
| President: Democratic primary | |||||||||||||||
| President: Democratic primary | • | Iowa | Iowa Mar 14-15, 2019 678 LV | Mar 14-15, 2019 | 678 | LV | Biden | 29% | Biden 29% Sanders 15% Warren 8% O'Rourke 7% Klobuchar 6% Harris 5% Booker 4% | More | Biden | +14 | |||
| Sanders | 15% | ||||||||||||||
| Warren | 8% | ||||||||||||||
| O'Rourke | 7% | ||||||||||||||
| Klobuchar | 6% | ||||||||||||||
| Harris | 5% | ||||||||||||||
| Booker | 4% | ||||||||||||||
No matching polls
Polls conducted after June 28, 2018, the date this page was published, are listed by the date that FiveThirtyEight collected them; polls conducted before then are listed under the last date that the poll was in the field. Polls from firms that are banned by FiveThirtyEight are not shown. Pollsters that did not release any horse-race polls within three weeks of an election since 1998 do not have a grade and are treated as a C+ by the grade filter.
* Polls marked with an asterisk are partisan polls. Partisanship is determined by who sponsors the poll, rather than who conducts it. Polls are considered partisan if they’re conducted on behalf of a candidate, party, campaign committee, or PAC, super PAC, 501(c)(4), 501(c)(5) or 501(c)(6) organization that conducts a large majority of its political activity on behalf of one political party.
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Download this data: presidential primary polls, presidential general election polls, Senate polls, House polls, gubernatorial polls, presidential approval polls, generic congressional ballot polls
Design and development by Aaron Bycoffe, Ritchie King and Dhrumil Mehta. Andrea Jones-Rooy, Dhrumil Mehta, Nathaniel Rakich, Derek Shan and Julia Wolfe contributed research.
© 2018 ABC News Internet Ventures. All rights reserved.
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