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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67House polls 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 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 |
| 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 |
| 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 |
| 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 |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 2nd congressional district election (2020) | A− Monmouth University Polling Institute | — | 374 | LV | — | Hart 44 · Miller-Meeks 48 | R+4 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 2nd congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 374 | RV | — | Hart 47 · Miller-Meeks 44 | D+3 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 1st congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 391 | LV | — | Finkenauer 52 · Hinson 40 | D+12 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 1st congressional district election (2020) | A− Monmouth University Polling Institute | — | 391 | LV | — | Finkenauer 52 · Hinson 41 | D+11 | — | — | Release |
| Jul 25–Aug 3, 2020 | 2020 Iowa's 1st congressional district election (2020)Not averaged | A− Monmouth University Polling Institute | — | 391 | RV | — | Finkenauer 51 · Hinson 41 | D+10 | — | — | Release |
| Oct 25–29, 2018 | 2018 New Jersey's 7th congressional district election (2018) | A− Monmouth University Polling Institute | — | 356 | V | — | Malinowski 47 · Lance 44 | D+3 | — | — | Release |
| Oct 24–28, 2018 | 2018 New York's 19th congressional district election (2018) | A− Monmouth University Polling Institute | — | 372 | V | — | Delgado 49 · Faso 44 | D+5 | — | — | Release |
| Oct 18–22, 2018 | 2018 New Jersey's 3rd congressional district election (2018) | A− Monmouth University Polling Institute | — | 363 | V | — | Kim 48 · MacArthur 46 | D+2 | — | — | Release |
| Oct 17–21, 2018 | 2018 California's 48th congressional district election (2018) | A− Monmouth University Polling Institute | — | 372 | V | — | Rouda 48 · Rohrabacher 50 | R+2 | — | — | Release |
| Oct 10–14, 2018 | 2018 West Virginia's 3rd congressional district election (2018) | A− Monmouth University Polling Institute | — | 343 | V | — | Ojeda 45 · Miller 48 | R+3 | — | — | Release |
| Oct 5–8, 2018 | 2018 Pennsylvania's 17th congressional district election (2018) | A− Monmouth University Polling Institute | — | 354 | V | — | Lamb 54 · Rothfus 42 | D+12 | — | — | Release |
| Oct 3–7, 2018 | 2018 New Jersey's 11th congressional district election (2018) | A− Monmouth University Polling Institute | — | 356 | V | — | Sherrill 48 · Webber 44 | D+4 | — | — | Release |
| Sep 27–Oct 1, 2018 | 2018 Pennsylvania's 1st congressional district election (2018) | A− Monmouth University Polling Institute | — | 353 | V | — | Wallace 46 · Fitzpatrick 50 | R+4 | — | — | Release |
| Sep 26–30, 2018 | 2018 Virginia's 10th congressional district election (2018) | A− Monmouth University Polling Institute | — | 374 | V | — | Wexton 50 · Comstock 44 | D+6 | — | — | Release |
| Sep 22–26, 2018 | 2018 California's 50th congressional district election (2018)Not averaged | A− Monmouth University Polling Institute | — | 401 | RV | — | Campa-Najjar 41 · Hunter 49 | R+8 | — | — | Release |
| Sep 22–26, 2018 | 2018 California's 50th congressional district election (2018) | A− Monmouth University Polling Institute | — | 348 | LV | — | Campa-Najjar 38 · Hunter 53 | R+15 | — | — | Release |
| Sep 15–24, 2018 | 2018 Virginia's 7th congressional district election (2018)Not averaged | A− Monmouth University Polling Institute | — | 400 | RV | — | Spanberger 47 · Brat 42 | D+5 | — | — | Release |
| Sep 15–24, 2018 | 2018 Virginia's 7th congressional district election (2018) | A− Monmouth University Polling Institute | — | 329 | LV | — | Spanberger 47 · Brat 47 | Even | — | — | Release |
| Sep 13–17, 2018 | 2018 New Jersey's 7th congressional district election (2018)Not averaged | A− Monmouth University Polling Institute | — | 414 | RV | — | Malinowski 47 · Lance 39 | D+8 | — | — | Release |
| Sep 13–17, 2018 | 2018 New Jersey's 7th congressional district election (2018) | A− Monmouth University Polling Institute | — | 365 | LV | — | Malinowski 46 · Lance 43 | D+3 | — | — | Release |
| Sep 13–16, 2018 | 2018 California's 39th congressional district election (2018)Not averaged | A− Monmouth University Polling Institute | — | 402 | RV | — | Cisneros 42 · Kim 46 | R+4 | — | — | Release |
| Sep 13–16, 2018 | 2018 California's 39th congressional district election (2018) | A− Monmouth University Polling Institute | — | 300 | LV | — | Cisneros 41 · Kim 51 | R+10 | — | — | Release |
| Sep 6–10, 2018 | 2018 New York's 19th congressional district election (2018)Not averaged | A− Monmouth University Polling Institute | — | 401 | RV | — | Delgado 45 · Faso 43 | D+2 | — | — | Release |
| Sep 6–10, 2018 | 2018 New York's 19th congressional district election (2018) | A− Monmouth University Polling Institute | — | 327 | LV | — | Delgado 48 · Faso 45 | D+3 | — | — | Release |
| Sep 5–9, 2018 | 2018 Pennsylvania's 7th congressional district election (2018)Not averaged | A− Monmouth University Polling Institute | — | 401 | RV | — | Wild 46 · Nothstein 40 | D+6 | — | — | Release |
| Sep 5–9, 2018 | 2018 Pennsylvania's 7th congressional district election (2018) | A− Monmouth University Polling Institute | — | 299 | LV | — | Wild 47 · Nothstein 45 | D+2 | — | — | Release |
| Aug 7–9, 2018 | 2018 New Jersey's 3rd congressional district election (2018)Not averaged | A− Monmouth University Polling Institute | — | 401 | RV | — | Kim 40 · MacArthur 41 | R+1 | — | — | Release |
Showing 1–50 of 67
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)