Monmouth University Polling Institute
Monmouth University Polling Institute has 145 polls in our database and is rated on 97 past polls scored against results (2005–2024).
Rated polls
972005–2024
Average miss
5.6All pollsters: 6.8
Lean
R+0.1Against other polls of the same races
Picked winner
69%Of rated polls
Last poll
Oct 28, 20242024 United States Senate election in Pennsylvania (2024)
Every rated poll against the result
Each dot is one poll from the last three weeks of a race: how far its margin landed from the result. Above the line it overstated Democrats; below, Republicans. Bars show each cycle’s average lean.
- Poll
- Cycle average
97 rated polls; misses beyond 25 points are drawn at the edge. Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET
By type of race
| Race type | Rated polls | Avg. miss | All pollsters | Lean | Picked winner |
|---|---|---|---|---|---|
| Senate | 34 | 4.8 | 5.5 | D+3.1 | 68% |
| House | 27 | 7.0 | 6.8 | D+3.6 | 74% |
| Governor | 20 | 4.4 | 5.7 | D+3.4 | 70% |
| President | 16 | 6.1 | 4.4 | D+4.7 | 62% |
Avg. miss: green where it beats all pollsters’ average for that type. Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET
Among all pollsters
Average miss of every rated pollster, in points. Monmouth University Polling Institute is marked; darker bars are pollsters with a smaller miss.
Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET
Recent polls
All 145 in the database| Dates | Question | Sample | Result | Margin | vs result | Source |
|---|---|---|---|---|---|---|
| Oct 24–28, 2024 | 2024 United States Senate election in Pennsylvania (2024) | 824 RV | Jr. 45 · McCormick 44 | D+1 | — | Release |
| Oct 10–14, 2024 | 2024 New Jersey's 7th congressional district election (2024) | 603 RV | Altman 44 · Jr. 46 | R+2 | — | Release |
| Sep 29–Oct 3, 2022 | 2022 Pennsylvania gubernatorial election (2022) | 610 RV | Shapiro 54 · Mastriano 38 | D+16 | — | Release |
| Sep 8–12, 2022 | 2022 Pennsylvania gubernatorial election (2022) | 605 RV | Shapiro 54 · Mastriano 36 | D+18 | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 1st congressional district election (2020) | 352 RV | Finkenauer 52 · Hinson 44 | D+8 | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 1st congressional district election (2020) | 352 LV | Finkenauer 54 · Hinson 44 | D+10 | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 1st congressional district election (2020) | 352 LV | Finkenauer 56 · Hinson 42 | D+14 | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 2nd congressional district election (2020) | 355 RV | Hart 49 · Miller-Meeks 43 | D+6 | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 2nd congressional district election (2020) | 355 LV | Hart 51 · Miller-Meeks 42 | D+9 | — | Release |
| Oct 15–20, 2020 | 2020 Iowa's 2nd congressional district election (2020) | 355 LV | Hart 54 · Miller-Meeks 41 | D+13 | — | Release |
Latest poll ended Oct 28, 2024. Source: each poll’s own release, via the 99chambers polls database
Who it polls for
Sponsors of its polls since 2016, by share of polls.
No polls for candidates or party committees on file.
Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET