# Opinion polling for the 2017 Chilean general election

Opinion polling was carried out prior to the 2017 Chilean general elections.

## President
### Open-ended question

Question: "Who would you like to be the next president?" Full sample is shown, unless specified.
| Polling firm | Field dates | MEO | Goic | Guillier | F Kast | JA Kast | Lagos | Mayol | Ossandón | Parisi | Piñera | Sánchez | Others | DK/NR | Error |
| Adimark | November 7–28, 2016 | 1% | 1% | 21% | 1% | | 7% | | 4% | | 24% | | 10% | 31% | 3% |
| Criteria Research | November 28-December 7, 2016 | 2% | | 25% | 0% | 0% | 4% | | 5% | 2% | 27% | | 35% | 35% | 3.4% |
| CEP | November 25-December 23, 2016 | 1% | | 14% | | | 5% | | 2% | | 20% | | 10% | 49% | 3% |
| CERC-Mori | December 7–15, 2016 | | | 14% | | | 6% | | 3% | | 19% | | 57% | 57% | 3% |
| Adimark | December 2–28, 2016 | 2% | | 26% | | | 5% | | 4% | | 29% | | 11% | 23% | 3% |
| Criteria Research | December 27, 2016 – January 4, 2017 | 2% | | 27% | | 1% | 2% | | 5% | 2% | 32% | | 22% | 7% | 3.4% |
| Adimark | January 6–25, 2017 | 1% | 1% | 28% | | 1% | 5% | | 2% | | 27% | | 10% | 25% | 3% |
| Criteria Research | January 25-February 2, 2017 | 1% | | 28% | | | 3% | | 5% | 3% | 28% | | 32% | 32% | 3.4% |
| Adimark | February 2–28, 2017 | 1% | 1% | 25% | 1% | 1% | 4% | | 2% | 1% | 29% | | 10% | 25% | 3% |
| Cadem | March 1–3, 2017 | 1% | | 17% | | | 3% | | 3% | 2% | 25% | | 6% | 43% | 3.7% |
| Criteria Research | March 1–10, 2017 | 3% | | 25% | | | 7% | | 4% | 5% | 23% | | 33% | 33% | 3.4% |
| Cadem | March 8–10, 2017 | 1% | 1% | 17% | 1% | | 2% | | 4% | 2% | 26% | | 6% | 40% | 3.7% |
| Adimark | March 3–28, 2017 | 2% | 2% | 23% | 1% | | 3% | | 4% | | 27% | 2% | 7% | 29% | 3% |
| Cadem | March 15–17, 2017 | 1% | 2% | 16% | 1% | | 2% | 1% | 3% | 1% | 24% | | 7% | 42% | 3.7% |
| Cadem | March 22–24, 2017 | 1% | 3% | 15% | 1% | | 3% | | 3% | 1% | 25% | 2% | 4% | 42% | 3.6% |
| Cadem | March 29–31, 2017 | 1% | 2% | 16% | 1% | | 4% | | 3% | 1% | 24% | 4% | 4% | 40% | 3.6% |
| CERC-Mori | March 28-April 10, 2017 | 2% | | 14% | | | 4% | | 2% | | 24% | 3% | 2% | 49% | 3% |
| Cadem | April 5–7, 2017 | 2% | 1% | 15% | | | 3% | | 3% | 2% | 26% | 6% | 3% | 39% | 3.6% |
| Criteria Research | April 4–11, 2017 | 2% | | 18% | | | 2% | | 4% | 6% | 33% | 11% | 24% | 24% | 3.4% |
| Cadem | April 12–13, 2017 | 1% | 2% | 17% | | | 1% | | 3% | 2% | 24% | 6% | 3% | 41% | 3.6% |
| Adimark | April 3–25, 2017 | | 2% | 19% | 1% | | 3% | | 2% | 3% | 24% | 11% | 6% | 29% | 3% |
| Cadem | April 20–21, 2017 | | 2% | 17% | 1% | | | | 4% | 1% | 23% | 6% | 4% | 42% | 3.7% |
| Cadem | April 26–28, 2017 | | 2% | 16% | 1% | 1% | | | 4% | 3% | 22% | 6% | 4% | 41% | 3.6% |
| Cadem | May 3–5, 2017 | 1% | 3% | 15% | 1% | | | | 4% | 2% | 24% | 8% | 4% | 38% | 3.6% |
| Criteria Research | May 2–12, 2017 | | | 18% | | | | | 9% | 5% | 30% | 17% | 15% | 7% | 3.4% |
| CEP | April 26-May 22, 2017 | 1.5% | 2.1% | 12.8% | | | 1.5% | | 5.4% | | 23.7% | 4.8% | 7% | 42% | 3% |
| Cadem | May 10–12, 2017 | 1% | 3% | 15% | 1% | | | | 4% | 1% | 24% | 9% | 3% | 39% | 3.7% |
| Adimark | May 3–29, 2017 | 2% | 3% | 21% | 1% | | 1% | | 4% | 1% | 25% | 11% | 5% | 26% | 3% |
| Cadem | May 17–19, 2017 | 1% | 3% | 14% | 1% | 1% | | | 4% | 2% | 26% | 8% | 4% | 36% | 3.6% |
| Cadem | May 24–26, 2017 | 1% | 3% | 13% | | | | 1% | 4% | 2% | 24% | 9% | 4% | 39% | 3.7% |
| Cadem | June 1–2, 2017 | 1% | 2% | 14% | 1% | | | | 4% | 1% | 24% | 10% | 5% | 38% | 3.7% |
| Criteria Research | June 1–11, 2017 | 2% | 6% | 17% | | | | | 6% | | 29% | 12% | 19% | 10% | 3.4% |
| Cadem | June 7–9, 2017 | | 1% | 13% | 1% | | | 1% | 5% | | 25% | 9% | 5% | 40% | 3.6% |
| Adimark | June 2–27, 2017 | 1% | 2% | 15% | 3% | 1% | | 3% | 4% | 1% | 31% | 13% | 3% | 23% | 3% |
| Cadem | June 15–16, 2017 | 1% | 2% | 13% | 2% | | | 2% | 6% | 1% | 25% | 9% | 5% | 34% | 3.6% |
| Cadem | June 21–23, 2017 | | 2% | 12% | 3% | | | 3% | 6% | 1% | 24% | 9% | 6% | 34% | 3.6% |
| Cadem | June 28–29, 2017 | 1% | 1% | 9% | 5% | 1% | | 3% | 7% | 1% | 22% | 11% | 4% | 35% | 3.6% |
| Cadem | July 5–7, 2017 | | 1% | 9% | 1% | 1% | | | 2% | 1% | 30% | 15% | 5% | 35% | 3.7% |
| Adimark | July 4–26, 2017 | 1% | 1% | 16% | 2% | 1% | 1% | | 2% | 1% | 32% | 17% | 4% | 22% | 3% |
| Adimark$^a$ | July 4–26, 2017 | 1% | 1% | 21% | 2% | 1% | 1% | | 1% | 1% | 39% | 20% | 2% | 10% | 3% |
| Criteria Research | July 14–19, 2017 | 1% | 3% | 13% | 5% | 1% | | | 3% | | 37% | 19% | 14% | 6% | 3.4% |
| CEP | July 21-August 17, 2017 | 1.6% | 2.2% | 14.5% | 0.5% | 0.4% | 0.1% | 0.1% | 1.1% | 1.1% | 31.3% | 10.2% | 1.4% | 35.5% | 3% |
| Criteria Research | August 11–17, 2017 | 2% | 4% | 15% | | 2% | | | | | 35% | 17% | 18% | 7% | 3.4% |
| Adimark | August 3–29, 2017 | 1% | 5% | 16% | 1% | 2% | | | | | 34% | 15% | 4% | 22% | 3% |
| Adimark$^b$ | August 3–29, 2017 | 1% | 7% | 21% | 1% | 2% | | | | | 40% | 16% | 2% | 10% | 3% |
| Criteria Research | September 21–24, 2017 | 3% | 3% | 17% | | 3% | | | | | 34% | 17% | 18% | 5% | 3.4% |
| CERC-Mori | September 1–12, 2017 | 2% | 2% | 20% | | 1% | | | | | 31% | 8% | 35% | 35% | 3% |
| CEP | September 22-October 16, 2017 | 3.4% | 2.3% | 13.8% | | | | | | | 32.8% | 7.0% | 4.3% | 36.4% | 3% |
| Criteria Research | October 20–30, 2017 | 4% | 5% | 18% | | 7% | | | | | 33% | 15% | 12% | 6% | 2.5% |
$^a$ Likely voter (52%). $^b$ Likely voter (49%).

### First round

Question: "Given the following list of candidates, who would you vote for?"
Legend :
* Not on the list
* Wins election
* May win election
* Runoff
* May go to a runoff
| Polling firm | Field dates | Artés | MEO | Goic | Guillier | JA Kast | Navarro | Piñera | Sánchez | Others | DK/NR | Error | Sample |
| CERC-Mori | December 7–15, 2016 | — | 5% | — | 19% | — | — | 23% | — | 19% | 34% | 2.8% | Total (n=1200) |
| CERC-Mori | March 28-April 10, 2017 | — | 3% | 2% | 14% | 0% | 0% | 26% | 4% | 51% | 51% | 2.8% | Total (n=1200) |
| Criteria Research | May 2–12, 2017 | — | 3% | 3% | 19% | 3% | — | 33% | 21% | 7% | 12% | 3.4% | Total (n=810) |
| Activa Research | June 2–9, 2017 | — | 1.6% | 2.1% | 13.9% | <1% | <1% | 21.4% | 7.1% | 11.8% | 42.1% | 2.6% | Total (n=1395) |
| Criteria Research | June 1–11, 2017 | — | 5% | 6% | 19% | 2% | — | 36% | 18% | 1% | 13% | 3.4% | Total (n=814) |
| CERC-Mori | June 6–15, 2017 | — | 3% | 5% | 18% | — | 1% | 26% | 10% | 38% | 38% | 2.8% | Total (n=1200) |
| Cadem | July 5–7, 2017 | — | 2% | 3% | 16% | 4% | — | 38% | 26% | 3% | 8% | 5.4% | Likely voter (45%, n=324) |
| Activa Research | July 7–12, 2017 | — | 0.6% | 1.3% | 14.0% | 2.4% | <1% | 28.3% | 12.0% | 3.9% | 37.5% | 2.6% | Total (n=1440) |
| Cadem | July 12–14, 2017 | — | 2% | 2% | 20% | 4% | — | 40% | 23% | 3% | 6% | 5.4% | Likely voter (45%, n=326) |
| Criteria Research | July 14–19, 2017 | — | 5% | 5% | 14% | 3% | — | 38% | 23% | 5% | 7% | 3.4% | Total (n=825) |
| Cadem | July 19–21, 2017 | — | 2% | 2% | 21% | 4% | — | 40% | 21% | 2% | 8% | 5.6% | Likely voter (44%, n=310) |
| Cadem | July 26–28, 2017 | — | 4% | 3% | 22% | 5% | — | 42% | 19% | 1% | 4% | 5.3% | Likely voter (43%, n=345) |
| CEP$^a$ | July 21-August 17, 2017 | — | 2.4% | 5.3% | 17.8% | 3.3% | — | 39.7% | 17.9% | 2.9% | 10.7% | 4.1% | Will "surely" go to vote (40%, n=569) |
| Criteria Research | August 11–17, 2017 | — | 2% | 8% | 18% | 9% | — | 38% | 22% | | 3% | 5.1% | Likely voter (45%, n=365) |
| Cadem | August 3–25, 2017 | 0% | 2% | 5% | 19% | 4% | 0% | 42% | 19% | | 9% | 2.8% | Likely voter (44%, n=1228) |
| Activa Research | August 11–18, 2017 | <1% | 1.7% | 1% | 17.9% | 1.1% | <1% | 44.4% | 19.2% | 1.5% | 13.2% | 3.8% | Likely voter (42.4%, n=673) |
| CERC-Mori | September 1–12, 2017 | 0% | 4% | 8% | 30% | 2% | 1% | 44% | 11% | | | 4.2% | Likely voter (45%, n=540) |
| Cadem | August 30-September 29, 2017 | 0% | 3% | 5% | 20% | 4% | 0% | 43% | 15% | | 10% | 2.3% | Likely voter (47%, n=1782) |
| Criteria Research | September 21–24, 2017 | 0% | 1% | 8% | 19% | 6% | 0% | 36% | 24% | | 6% | 4.7% | Likely voter (49%, n=430) |
| Activa Research | September 21–28, 2017 | <0.5% | 6.1% | 2.2% | 11.2% | 8.6% | <0.5% | 45.2% | 15.5% | | 10.7% | 4.4% | Likely voter (32.9%, n=487) |
| CEP$^a$ | September 22-October 16, 2017 | 0.1% | 4.6% | 3.9% | 19.7% | 2.7% | 0.5% | 44.4% | 8.5% | | 15.6% | 3.9%$^b$ | Likely voter (44%, n=627$^b$) |
| Cadem | October 4–26, 2017 | 0% | 4% | 4% | 21% | 5% | 0% | 43% | 13% | | 10% | 1.8% | Likely voter (49%, n=2964) |
| Criteria Research | October 20–30, 2017 | 1% | 5% | 6% | 24% | 6% | 0% | 39% | 15% | | 4% | 3.6% | Likely voter (46%, n=724) |
| Cadem | October 31-November 2, 2017 | 1% | 6% | 5% | 20% | 6% | 1% | 42% | 13% | | 7% | 3.5% | Likely voter (48%, n=796) |
| Cadem | November 8–10, 2017 | 0.5% | 7% | 6% | 20% | 7% | 0.5% | 39% | 13% | | 7% | N/A% | Likely voter (48%, n=N/A) |
| Activa Research | November 8–17, 2017 | 0.5% | 5.5% | 3.9% | 21.1% | 5.4% | 0.1% | 35.1% | 14.0% | | 14.3% | 3.1% | Likely voter (48.9%, n=989) |
| Cadem | November 14–16, 2017 | 0.5% | 5% | 6% | 21% | 6% | 0.5% | 40% | 13% | | 8% | 3.6% | Likely voter (46%, n=727) |
$^a$ Ballot-box vote. $^b$ Estimated.

### Second round

Question: "If the following two candidates proceed to a runoff election, who would you vote for?"
Legend :
| — | Not on the list |
| | Wins election |
| | May win election |
| Polling firm | Field dates | MEO | Goic | Guillier | JA Kast | Navarro | Piñera | Sánchez | DK/NR | Error | Sample |
| Criteria Research | November 28-December 7, 2016 | — | — | 42% | — | — | 39% | — | 18% | 3.4% | Total (n=822) |
| CERC-Mori | December 7–15, 2016 | — | — | 35% | — | — | 30% | — | 35% | 2.8% | Total (n=1200) |
| Criteria Research | December 27, 2016 – January 4, 2017 | — | — | 42% | — | — | 41% | — | 17% | 3.4% | Total (n=807) |
| Criteria Research | January 25-February 2, 2017 | — | — | 43% | — | — | 43% | — | 14% | 4.4% | 100% probability of voting (60%, n=487) |
| Criteria Research | January 25-February 2, 2017 | — | 13% | — | — | — | 45% | — | 14% | 3.5% | Total (n=805) |
| Criteria Research | March 1–10, 2017 | — | — | 41% | — | — | 36% | — | 23% | 3.3% | Total (n=869) |
| Criteria Research | March 1–10, 2017 | — | 18% | — | — | — | 39% | — | 42% | 3.3% | Total (n=869) |
| CERC-Mori | March 28-April 10, 2017 | — | — | 33% | — | — | 32% | — | 35% | 2.8% | Total (n=1200) |
| CERC-Mori | March 28-April 10, 2017 | — | 18% | — | — | — | 33% | — | 49% | 2.8% | Total (n=1200) |
| CERC-Mori | March 28-April 10, 2017 | — | — | — | — | 10% | 35% | — | 55% | 2.8% | Total (n=1200) |
| Criteria Research | April 4–11, 2017 | — | — | 37% | — | — | 41% | — | 22% | 3.4% | Total (n=852) |
| Criteria Research | April 4–11, 2017 | — | — | — | — | — | 43% | 32% | 26% | 3.4% | Total (n=852) |
| Criteria Research | April 4–11, 2017 | — | 18% | — | — | — | 45% | — | 37% | 3.4% | Total (n=852) |
| Criteria Research | May 2–12, 2017 | — | — | 40% | — | — | 41% | — | 19% | 3.4% | Total (n=810) |
| Criteria Research | May 2–12, 2017 | — | — | — | — | — | 41% | 42% | 17% | 3.4% | Total (n=810) |
| Criteria Research | May 2–12, 2017 | — | 22% | — | — | — | 43% | — | 35% | 3.4% | Total (n=810) |
| CEP | April 26-May 22, 2017 | — | 14.2% | — | — | — | 36.0% | — | 49.8% | 2.5% | Total (n=1481) |
| CEP | April 26-May 22, 2017 | — | — | 28.7% | — | — | 32.9% | — | 38.4% | 2.5% | Total (n=1481) |
| Criteria Research | June 1–11, 2017 | — | — | 40% | — | — | 43% | — | 17% | 3.4% | Total (n=814) |
| Criteria Research | June 1–11, 2017 | — | — | — | — | — | 45% | 33% | 22% | 3.4% | Total (n=814) |
| Criteria Research | June 1–11, 2017 | — | 27% | — | — | — | 42% | — | 31% | 3.4% | Total (n=814) |
| CERC-Mori | June 6–15, 2017 | — | — | 35% | — | — | 32% | — | 33% | 2.8% | Total (n=1200) |
| CERC-Mori | June 6–15, 2017 | — | 23% | — | — | — | 33% | — | 44% | 2.8% | Total (n=1200) |
| CERC-Mori | June 6–15, 2017 | — | — | — | — | — | 33% | 26% | 41% | 2.8% | Total (n=1200) |
| Criteria Research | July 14–19, 2017 | — | — | 37% | — | — | 45% | — | 18% | 3.4% | Total (n=825) |
| Criteria Research | July 14–19, 2017 | — | — | — | — | — | 45% | 42% | 13% | 3.4% | Total (n=825) |
| Criteria Research | July 14–19, 2017 | — | 24% | — | — | — | 45% | — | 31% | 3.4% | Total (n=825) |
| Criteria Research | July 14–19, 2017 | 27% | — | — | — | — | 47% | — | 26% | 3.4% | Total (n=825) |
| Cadem | July 5–28, 2017 | — | — | 39% | — | — | 49% | — | 12% | 2.7% | Likely voter (46%, n=1327) |
| Cadem | July 5–28, 2017 | — | — | — | — | — | 48% | 42% | 10% | 2.7% | Likely voter (46%, n=1327) |
| Cadem | July 5–28, 2017 | — | 27% | — | — | — | 50% | — | 23% | 2.7% | Likely voter (46%, n=1327) |
| Activa Research | July 7–12, 2017 | — | — | 23.7% | — | — | 32.8% | — | 43.5% | 2.6% | Total (n=1440) |
| Activa Research | July 7–12, 2017 | — | — | — | — | — | 32.7% | 28.3% | 39.0% | 2.6% | Total (n=1440) |
| CEP$^a$ | July 21-August 17, 2017 | — | 23.7% | — | — | — | 48.9% | — | 27.5% | 4.1% | Will "surely" go to vote (40%, n=569) |
| CEP$^a$ | July 21-August 17, 2017 | — | — | — | — | — | 45.7% | 34.9% | 19.4% | 4.1% | Will "surely" go to vote (40%, n=569) |
| CEP$^a$ | July 21-August 17, 2017 | — | — | 35.7% | — | — | 46.6% | — | 17.7% | 4.1% | Will "surely" go to vote (40%, n=569) |
| Criteria Research | August 11–17, 2017 | — | — | 38% | — | — | 46% | — | 16% | 5.1% | Likely voter (45%, n=368) |
| Criteria Research | August 11–17, 2017 | — | — | — | — | — | 48% | 41% | 11% | 5.1% | Likely voter (45%, n=368) |
| Criteria Research | August 11–17, 2017 | — | 33% | — | — | — | 48% | — | 19% | 5.1% | Likely voter (45%, n=368) |
| Criteria Research | August 11–17, 2017 | 25% | — | — | — | — | 49% | — | 26% | 5.1% | Likely voter (45%, n=368) |
| Activa Research | August 11–18, 2017 | — | — | 33.9% | — | — | 46.9% | — | 19.2% | 4% | Likely voter (42.4%, n=600) |
| Activa Research | August 11–18, 2017 | — | — | — | — | — | 46.8% | 29.7% | 23.5% | 4% | Likely voter (42.4%, n=600) |
| Cadem | August 3–25, 2017 | — | — | 37% | — | — | 49% | — | 14% | 2.8% | Likely voter (44%, n=1228) |
| Cadem | August 3–25, 2017 | — | — | — | — | — | 50% | 39% | 11% | 2.8% | Likely voter (44%, n=1228) |
| Cadem | August 3–25, 2017 | — | 27% | — | — | — | 51% | — | 22% | 2.8% | Likely voter (44%, n=1228) |
| Cadem | August 3–25, 2017 | 24% | — | — | — | — | 53% | — | 23% | 2.8% | Likely voter (44%, n=1228) |
| Cadem | August 30-September 29, 2017 | — | — | 38% | — | — | 50% | — | 12% | 2.3% | Likely voter (47%, n=1782) |
| Cadem | August 30-September 29, 2017 | — | — | — | — | — | 50% | 36% | 14% | 2.3% | Likely voter (47%, n=1782) |
| Cadem | August 30-September 29, 2017 | — | 28% | — | — | — | 51% | — | 21% | 2.3% | Likely voter (47%, n=1782) |
| Cadem | August 30-September 29, 2017 | 24% | — | — | — | — | 52% | — | 24% | 2.3% | Likely voter (47%, n=1782) |
| Criteria Research | September 21–24, 2017 | — | — | 44% | — | — | 45% | — | 11% | 4.7% | Likely voter (45%, n=430) |
| Criteria Research | September 21–24, 2017 | — | — | — | — | — | 46% | 45% | 9% | 4.7% | Likely voter (45%, n=430) |
| Criteria Research | September 21–24, 2017 | — | 30% | — | — | — | 45% | — | 25% | 4.7% | Likely voter (45%, n=430) |
| Criteria Research | September 21–24, 2017 | 28% | — | — | — | — | 49% | — | 23% | 4.7% | Likely voter (45%, n=430) |
| Activa Research | September 21–28, 2017 | — | — | 29% | — | — | 48.2% | — | 22.8% | 4.4% | Likely voter (32.9%, n=487) |
| Activa Research | September 21–28, 2017 | — | — | — | — | — | 48.8% | 31.4% | 19.8% | 4.4% | Likely voter (32.9%, n=487) |
| CEP$^a$ | September 22-October 16, 2017 | — | 19.7% | — | — | — | 40.0% | — | 40.3% | 2.6% | Total (n=1424) |
| CEP$^a$ | September 22-October 16, 2017 | — | — | — | — | — | 39.7% | 23.3% | 37.0% | 2.6% | Total (n=1424) |
| CEP$^a$ | September 22-October 16, 2017 | — | — | 27.2% | — | — | 39.4% | — | 33.4% | 2.6% | Total (n=1424) |
| Cadem | October 4–26, 2017 | — | — | 38% | — | — | 50% | — | 12% | 1.8% | Likely voter (49%, n=2964) |
| Cadem | October 4–26, 2017 | — | — | — | — | — | 51% | 35% | 14% | 1.8% | Likely voter (49%, n=2964) |
| Cadem | October 4–26, 2017 | — | 29% | — | — | — | 50% | — | 21% | 1.8% | Likely voter (49%, n=2964) |
| Cadem | October 4–26, 2017 | 25% | — | — | — | — | 52% | — | 23% | 1.8% | Likely voter (49%, n=2964) |
| Cadem | October 4–26, 2017 | — | — | — | 15% | — | 49% | — | 36% | 1.8% | Likely voter (49%, n=2964) |
| Criteria Research | October 20–30, 2017 | — | — | 46% | — | — | 49% | — | 5% | 3.6% | Likely voter (46%, n=724) |
| Criteria Research | October 20–30, 2017 | — | — | — | — | — | 49% | 41% | 10% | 3.6% | Likely voter (46%, n=724) |
| Activa Research | November 8–17, 2017 | — | — | 38.8% | — | — | 44.1% | — | 17.0% | 3.1% | Likely voter (48.9%, n=989) |
| Activa Research | November 8–17, 2017 | — | — | — | — | — | 45.8% | 36.3% | 17.8% | 3.1% | Likely voter (48.9%, n=989) |
| Cadem | October 31-November 2, 2017 | — | — | 38% | — | — | 50% | — | 12% | 3.5% | Likely voter (48%, n=796) |
| Cadem | October 31-November 2, 2017 | — | — | — | — | — | 51% | 36% | 13% | 3.5% | Likely voter (48%, n=796) |
| Cadem | October 31-November 2, 2017 | — | 31% | — | — | — | 50% | — | 19% | 3.5% | Likely voter (48%, n=796) |
| Cadem | October 31-November 2, 2017 | 29% | — | — | — | — | 51% | — | 20% | 3.5% | Likely voter (48%, n=796) |
| Cadem | October 31-November 2, 2017 | — | — | — | 18% | — | 49% | — | 33% | 3.5% | Likely voter (48%, n=796) |
| Cadem | November 8–10, 2017 | — | — | 38% | — | — | 48% | — | 14% | N/A% | Likely voter (48%, n=N/A) |
| Cadem | November 14–16, 2017 | — | — | 39% | — | — | 48% | — | 13% | 3.6% | Likely voter (46%, n=727) |
| Cadem | November 22–24, 2017 | — | — | 37.3% | — | — | 39.8% | — | 22.9% | 2.6% | Total (n=1442) |
| Criteria Research | November 22–28, 2017 | — | — | 46% | — | — | 51% | — | 3% | 3.7% | Likely voter (44%, n=702) |
| Cadem | November 29-December 1, 2017 | — | — | 38.6% | — | — | 40.0% | — | 21.4% | 2.6% | Total (n=1439) |
| Cadem | December 13–15, 2017 | — | — | 33.4% | — | — | 39.6% | — | 27.0% | 2.6% | Total (n=1455) |
$^a$ Ballot-box vote.