Jefferson County, Illinois
Latest: 2024
Safe Republican — 40 presidential elections on record
Race & ancestry
| Group | % |
|---|---|
▶White (Non-Hispanic)(13) | 83.6% |
▶Hispanic / Latino(5) | 2.8% |
▶Black / African American(6) | 6.2% |
▶Asian(6) | 1.0% |
▶Middle Eastern / North African(4) | 0.1% |
▶Native American / Alaska Native(1) | 0.3% |
Multiracial / Other | 6.0% |
Religious adherence
| Tradition | % Pop | % Adherents |
|---|---|---|
| Evangelical Protestant | 35.7% | 76.2% |
| Mainline Protestant | 3.8% | 8.1% |
| Catholic | 3.5% | 7.5% |
| Black Protestant | 2.4% | 5.1% |
| Other | 1.4% | 3.0% |
| LDS (Mormon) | 0.9% | 1.9% |
| Non-religious | 53.2% | — |
Presidential results
| Year | Result |
|---|---|
| 2024 | Trump+47.7 |
| 2020 | Trump+45.1 |
| 2016 | Trump+42.8 |
| 2012 | Romney+22.8 |
| 2008 | McCain+10.7 |
| 2004 | Bush+20.3 |
| 2000 | Bush+11.0 |
| 1996 | Clinton+8.8 |
| 1992 | Clinton+18.0 |
Jefferson, Illinois is a county that has a population of 36,550. In the 2024 presidential election, it voted Republican with a margin of R+47.7. Akashic Edge tracks 40 presidential elections here, dating back to 1868.
| Year | Dem % | Rep % | Margin | Swing |
|---|---|---|---|---|
| 2024 | 25.4% | 73.2% | R+47.7 | R+2.6 |
| 2020 | 26.4% | 71.6% | R+45.1 | R+2.4 |
| 2016 | 26.0% | 68.8% | R+42.8 | R+20.0 |
| 2012 | 37.3% | 60.1% | R+22.8 | R+12.1 |
| 2008 | 43.3% | 54.0% | R+10.7 | D+9.7 |
| 2004 | 39.6% | 59.9% | R+20.3 | R+9.3 |
| 2000 | 43.8% | 54.8% | R+11.0 | R+19.8 |
| 1996 | 48.5% | 39.6% | D+8.8 | R+9.2 |
| 1992 | 49.2% | 31.2% | D+18.0 | D+17.3 |
| 1988 | 50.1% | 49.4% | D+0.7 | D+15.1 |
| 1984 | 42.6% | 57.1% | R+14.5 | R+0.9 |
| 1980 | 41.4% | 54.9% | R+13.5 | R+23.0 |
| 1976 | 54.4% | 44.9% | D+9.5 | D+28.7 |
| 1972 | 40.2% | 59.4% | R+19.2 | R+13.4 |
| 1968 | 41.9% | 47.6% | R+5.8 | R+27.2 |
| 1964 | 60.7% | 39.3% | D+21.4 | D+33.1 |
| 1960 | 44.2% | 55.8% | R+11.7 | R+2.9 |
| 1956 | 45.6% | 54.4% | R+8.7 | R+2.6 |
| 1952 | 46.9% | 53.0% | R+6.2 | R+15.6 |
| 1948 | 54.7% | 45.3% | D+9.4 | — |
County in State Context
Current Illinois Polling
Contextual statewide polling for Illinois. County pages stay rooted in county returns, but live statewide polling helps frame the current cycle.
2026 Illinois Senate Democratic Primary
Raja Krishnamoorthi leads at 32.1%
7 pollsMedium
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