Polls database
Every poll we use, with its source
11,685 polls since 2015: national questions, Senate, House, governor and state legislative races, presidential primaries and ballot measures. Filter, then open any poll’s release.
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145Polls by Monmouth University Polling Institute.
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Latest poll in the database ended Nov 2, 2026. Source: 99chambers polls database
| Dates | Question | Pollster | Sponsor | Sample | Pop. | Mode | Result | Margin | Adjusted | vs result | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 24–28, 2024 | 2024 United States Senate election in Pennsylvania (2024) | A− Monmouth University Polling Institute | — | 824 | RV | — | Jr. 45 · McCormick 44 | D+1 | — | — | Release |
| Oct 10–14, 2024 | 2024 New Jersey's 7th congressional district election (2024) | A− Monmouth University Polling Institute | — | 603 | RV | — | Altman 44 · Jr. 46 | R+2 | — | — | Release |
| Sep 29–Oct 3, 2022 | 2022 Pennsylvania gubernatorial election (2022) | A− Monmouth University Polling Institute | — | 610 | RV | — | Shapiro 54 · Mastriano 38 | D+16 | — | — | Release |
| Sep 8–12, 2022 | 2022 Pennsylvania gubernatorial election (2022) | A− Monmouth University Polling Institute | — | 605 | RV | — | Shapiro 54 · Mastriano 36 | D+18 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 4th congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 414 | LV | — | Scholten 44 · Feenstra 47 | R+3 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 4th congressional district election (2020) | A− Monmouth University Polling Institute | — | 414 | LV | — | Scholten 43 · Feenstra 48 | R+5 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 4th congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 414 | RV | — | Scholten 42 · Feenstra 48 | R+6 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 3rd congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 426 | LV | — | Axne 55 · Young 41 | D+14 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 3rd congressional district election (2020) | A− Monmouth University Polling Institute | — | 426 | LV | — | Axne 53 · Young 42 | D+11 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 3rd congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 426 | RV | — | Axne 52 · Young 43 | D+9 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 2nd congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 355 | LV | — | Hart 54 · Miller-Meeks 41 | D+13 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 2nd congressional district election (2020) | A− Monmouth University Polling Institute | — | 355 | LV | — | Hart 51 · Miller-Meeks 42 | D+9 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 2nd congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 355 | RV | — | Hart 49 · Miller-Meeks 43 | D+6 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 1st congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 352 | LV | — | Finkenauer 56 · Hinson 42 | D+14 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 1st congressional district election (2020) | A− Monmouth University Polling Institute | — | 352 | LV | — | Finkenauer 54 · Hinson 44 | D+10 | — | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 1st congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 352 | RV | — | Finkenauer 52 · Hinson 44 | D+8 | — | — | Release |
| Oct 15–19, 2020 | 2020 United States Senate election in Iowa (2020)Not averaged | A− Monmouth University Polling Institute | — | 501 | LV | — | Greenfield 51 · Ernst 45 | D+6 | — | — | Release |
| Oct 15–19, 2020 | 2020 United States Senate election in Iowa (2020) | A− Monmouth University Polling Institute | — | 501 | LV | — | Greenfield 49 · Ernst 47 | D+2 | — | — | Release |
| Oct 15–19, 2020 | 2020 United States Senate election in Iowa (2020)Not averaged | A− Monmouth University Polling Institute | — | 501 | RV | — | Greenfield 47 · Ernst 47 | Even | — | — | Release |
| Oct 9–13, 2020 | 2020 United States Senate special election in Arizona (2020)Not averaged | A− Monmouth University Polling Institute | — | 502 | LV | — | Kelly 51 · McSally 45 | D+6 | — | — | Release |
| Oct 9–13, 2020 | 2020 United States Senate special election in Arizona (2020) | A− Monmouth University Polling Institute | — | 502 | LV | — | Kelly 52 · McSally 42 | D+10 | — | — | Release |
| Oct 9–13, 2020 | 2020 United States Senate special election in Arizona (2020)Not averaged | A− Monmouth University Polling Institute | — | 502 | RV | — | Kelly 52 · McSally 42 | D+10 | — | — | Release |
| Oct 8–11, 2020 | 2020 North Carolina gubernatorial election (2020)Not averaged | A− Monmouth University Polling Institute | — | 500 | LV | — | Cooper 51 · Forest 46 | D+5 | — | — | Release |
| Oct 8–11, 2020 | 2020 North Carolina gubernatorial election (2020) | A− Monmouth University Polling Institute | — | 500 | LV | — | Cooper 52 · Forest 44 | D+8 | — | — | Release |
| Oct 8–11, 2020 | 2020 North Carolina gubernatorial election (2020)Not averaged | A− Monmouth University Polling Institute | — | 500 | RV | — | Cooper 51 · Forest 44 | D+7 | — | — | Release |
| Oct 8–11, 2020 | 2020 United States Senate election in North Carolina (2020)Not averaged | A− Monmouth University Polling Institute | — | 500 | LV | — | Cunningham 48 · Tillis 47 | D+1 | — | — | Release |
| Oct 8–11, 2020 | 2020 United States Senate election in North Carolina (2020) | A− Monmouth University Polling Institute | — | 500 | LV | — | Cunningham 49 · Tillis 44 | D+5 | — | — | Release |
| Oct 8–11, 2020 | 2020 United States Senate election in North Carolina (2020)Not averaged | A− Monmouth University Polling Institute | — | 500 | RV | — | Cunningham 48 · Tillis 44 | D+4 | — | — | Release |
| Sep 26–Oct 1, 2020 | 2020 New Jersey's 2nd congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 588 | LV | — | Kennedy 51 · Drew 44 | D+7 | — | — | Release |
| Sep 26–Oct 1, 2020 | 2020 New Jersey's 2nd congressional district election (2020) | A− Monmouth University Polling Institute | — | 588 | LV | — | Kennedy 50 · Drew 44 | D+6 | — | — | Release |
| Sep 26–Oct 1, 2020 | 2020 New Jersey's 2nd congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 588 | RV | — | Kennedy 49 · Drew 44 | D+5 | — | — | Release |
| Sep 18–22, 2020 | 2020 United States Senate election in Iowa (2020)Not averaged | A− Monmouth University Polling Institute | — | 402 | LV | — | Greenfield 48 · Ernst 47 | D+1 | — | — | Release |
| Sep 18–22, 2020 | 2020 United States Senate election in Iowa (2020) | A− Monmouth University Polling Institute | — | 402 | LV | — | Greenfield 49 · Ernst 46 | D+3 | — | — | Release |
| Sep 18–22, 2020 | 2020 United States Senate election in Iowa (2020)Not averaged | A− Monmouth University Polling Institute | — | 402 | RV | — | Greenfield 47 · Ernst 47 | Even | — | — | Release |
| Sep 11–15, 2020 | 2020 United States Senate special election in Arizona (2020)Not averaged | A− Monmouth University Polling Institute | — | 420 | LV | — | Kelly 49 · McSally 48 | D+1 | — | — | Release |
| Sep 11–15, 2020 | 2020 United States Senate special election in Arizona (2020) | A− Monmouth University Polling Institute | — | 420 | LV | — | Kelly 50 · McSally 46 | D+4 | — | — | Release |
| Sep 11–15, 2020 | 2020 United States Senate special election in Arizona (2020)Not averaged | A− Monmouth University Polling Institute | — | 420 | RV | — | Kelly 50 · McSally 44 | D+6 | — | — | Release |
| Aug 29–Sep 1, 2020 | 2020 North Carolina gubernatorial election (2020)Not averaged | A− Monmouth University Polling Institute | — | 401 | LV | — | Cooper 51 · Forest 42 | D+9 | — | — | Release |
| Aug 29–Sep 1, 2020 | 2020 North Carolina gubernatorial election (2020) | A− Monmouth University Polling Institute | — | 401 | LV | — | Cooper 51 · Forest 42 | D+9 | — | — | Release |
| Aug 29–Sep 1, 2020 | 2020 North Carolina gubernatorial election (2020)Not averaged | A− Monmouth University Polling Institute | — | 401 | RV | — | Cooper 51 · Forest 40 | D+11 | — | — | Release |
| Aug 29–Sep 1, 2020 | 2020 United States Senate election in North Carolina (2020)Not averaged | A− Monmouth University Polling Institute | — | 401 | LV | — | Cunningham 46 · Tillis 46 | Even | — | — | Release |
| Aug 29–Sep 1, 2020 | 2020 United States Senate election in North Carolina (2020) | A− Monmouth University Polling Institute | — | 401 | LV | — | Cunningham 47 · Tillis 45 | D+2 | — | — | Release |
| Aug 29–Sep 1, 2020 | 2020 United States Senate election in North Carolina (2020)Not averaged | A− Monmouth University Polling Institute | — | 401 | RV | — | Cunningham 46 · Tillis 45 | D+1 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 4th congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 374 | LV | — | Scholten 33 · Feenstra 56 | R+23 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 4th congressional district election (2020) | A− Monmouth University Polling Institute | — | 374 | LV | — | Scholten 34 · Feenstra 55 | R+21 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 4th congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 374 | RV | — | Scholten 34 · Feenstra 54 | R+20 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 3rd congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 507 | LV | — | Axne 52 · Young 41 | D+11 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 3rd congressional district election (2020) | A− Monmouth University Polling Institute | — | 507 | LV | — | Axne 50 · Young 42 | D+8 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 3rd congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 507 | RV | — | Axne 48 · Young 42 | D+6 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 2nd congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 374 | LV | — | Hart 45 · Miller-Meeks 48 | R+3 | — | — | Release |
Showing 1–50 of 145
Adjusted: after house-effect and population corrections. vs result: margin minus the certified or unofficial result. Latest poll in the database ended Nov 2, 2026. Source: each poll’s own release, as cited by the poll list it was compiled from (The New York Times for Senate, governor and House races; Wikipedia for other offices)