Polls database
Every poll we use, with its source
26,974 polls since 1998: national questions, president, Senate, House, governor and state legislative races, presidential primaries and ballot measures. Filter, then open any poll’s release.
Pollster: Southern Illinois University Paul Simon Public Policy Institute Remove ×
Matching polls
7Polls by Southern Illinois University Paul Simon Public Policy Institute.
Polls per month
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 26, 2018 | Governor (2018) | — Southern Illinois University Paul Simon Public Policy Institute | — | 715 | Live Phone | Pritzker 49 · Rauner 27 | D+22 | — | — | Release | |
| Sep 29, 2016 | U.S. President (2016) | — Southern Illinois University Paul Simon Public Policy Institute | — | 865 | Live Phone | Clinton 53 · Trump 28 | D+25 | — | — | Release | |
| Sep 29, 2016 | 2016 United States Senate election in Illinois (2016) | — Southern Illinois University Paul Simon Public Policy Institute | — | 865 | Live Phone | Duckworth 48 · Kirk 34 | D+14 | — | — | Release | |
| Oct 4, 2014 | Governor (2014) | — Southern Illinois University Paul Simon Public Policy Institute | — | 691 | Live Phone | Quinn 41 · Rauner 42 | R+2 | — | — | Release | |
| Oct 4, 2014 | U.S. Senate (2014) | — Southern Illinois University Paul Simon Public Policy Institute | — | 691 | Live Phone | Durbin 47 · Oberweis 36 | D+10 | — | — | Release | |
| Sep 7, 2012 | U.S. President (2012) | — Southern Illinois University Paul Simon Public Policy Institute | — | 1,261 | — | Obama 47 · Romney 34 | D+13 | — | — | Release | |
| Oct 5, 2010 | Governor (2010) | — Southern Illinois University Paul Simon Public Policy Institute | — | 758 | Live Phone | Quinn 30 · Brady 38 | R+9 | — | — | Release |
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)