| 2020 | 2020 | 2020 | 2020 | 2018 | 2018 | 2018 | 2018 | 2018 | 2018 | 2016 | 2016 | 2016 | 2016 | 2014 | 2014 | 2014 | 2014 | 2014 | 2014 | 2014 | 2012 | 2012 |
|---|
| | Fair Tax Yes | Biden | Durbin | Cong Cand | Pritzker | Raoul | White | Mendoza | Frerichs | Cong Cand | Clinton | Duckworth | Mendoza | Cong Cand | Durbin | Quinn | Madigan | White | Simon | Frerichs | Cong Cand | Obama | Cong Cand |
|---|
| 1st CD | 64.02% | 74.46% | 64.60% | 73.80% | 74.82% | 74.52% | 83.34% | 77.90% | 75.76% | 73.51% | 75.43% | 75.13% | 69.21% | 74.10% | 75.59% | 72.98% | 81.20% | 82.76% | 69.07% | 72.81% | 73.09% | 79.00% | 73.80% |
| 2nd CD | 68.47% | 77.65% | 68.39% | 78.81% | 77.23% | 77.08% | 84.79% | 80.22% | 78.29% | 81.06% | 77.98% | 77.45% | 72.35% | 79.80% | 76.68% | 73.27% | 82.27% | 83.78% | 70.76% | 75.22% | 78.49% | 80.70% | 63.30% |
| 3rd CD | 46.95% | 56.09% | 55.24% | 56.38% | 56.33% | 55.44% | 71.76% | 63.71% | 59.38% | 73.01% | 55.38% | 56.24% | 50.58% | 100.00% | 55.06% | 49.31% | 65.51% | 68.92% | 46.37% | 49.95% | 64.56% | 55.90% | 68.50% |
| 4th CD | 73.25% | 80.68% | 77.64% | 84.05% | 81.06% | 79.53% | 87.53% | 84.92% | 81.82% | 86.59% | 82.05% | 77.01% | 73.83% | 100.00% | 76.70% | 72.19% | 81.92% | 83.67% | 63.24% | 69.94% | 78.15% | 80.90% | 83.00% |
| 5th CD | 57.97% | 72.46% | 69.00% | 70.77% | 67.79% | 68.39% | 79.33% | 73.80% | 70.61% | 76.66% | 70.44% | 64.28% | 57.50% | 67.80% | 64.34% | 55.50% | 68.57% | 73.93% | 51.62% | 55.32% | 63.23% | 66.00% | 65.70% |
| 6th CD | 39.24% | 55.25% | 51.47% | 52.82% | 44.71% | 47.31% | 62.90% | 51.60% | 48.12% | 53.58% | 49.98% | 44.30% | 36.73% | 40.80% | 41.68% | 32.41% | 48.46% | 57.33% | 33.70% | 33.16% | 32.86% | 45.10% | 40.80% |
| 7th CD | 71.62% | 86.24% | 75.33% | 80.41% | 82.95% | 83.06% | 89.22% | 85.72% | 84.19% | 87.62% | 86.78% | 81.57% | 75.94% | 84.20% | 84.15% | 79.79% | 86.42% | 88.63% | 74.28% | 79.36% | 85.10% | 87.20% | 84.60% |
| 8th CD | 50.14% | 59.09% | 57.85% | 73.16% | 54.00% | 56.09% | 68.96% | 60.47% | 57.01% | 65.97% | 57.97% | 55.86% | 48.59% | 58.30% | 51.36% | 43.07% | 59.46% | 65.95% | 42.92% | 44.38% | 55.73% | 57.40% | 54.70% |
| 9th CD | 58.60% | 70.85% | 67.86% | 70.98% | 65.36% | 66.43% | 78.34% | 71.76% | 69.16% | 73.49% | 69.58% | 62.96% | 55.89% | 66.50% | 63.96% | 54.11% | 68.00% | 74.94% | 51.64% | 54.18% | 66.06% | 65.00% | 66.30% |
| 10th CD | 48.38% | 64.19% | 60.23% | 63.87% | 55.11% | 57.49% | 71.04% | 61.95% | 58.78% | 65.59% | 61.29% | 53.29% | 48.58% | 52.60% | 54.27% | 43.28% | 60.07% | 66.77% | 44.61% | 45.65% | 48.70% | 57.50% | 50.60% |
| 11th CD | 47.46% | 61.46% | 58.68% | 63.30% | 55.54% | 56.71% | 70.09% | 60.58% | 57.69% | 63.84% | 58.17% | 56.28% | 50.70% | 60.40% | 52.15% | 45.35% | 59.24% | 64.83% | 44.88% | 43.63% | 53.46% | 57.80% | 58.60% |
| 12th CD | 35.37% | 41.89% | 44.06% | 39.57% | 46.06% | 43.38% | 56.51% | 48.30% | 46.06% | 45.39% | 40.04% | 52.01% | 44.22% | 39.70% | 47.84% | 38.29% | 49.48% | 56.88% | 44.99% | 42.45% | 41.89% | 49.70% | 51.70% |
| 13th CD | 39.33% | 47.06% | 47.70% | 45.54% | 46.07% | 44.35% | 61.94% | 52.31% | 52.95% | 49.62% | 43.93% | 46.82% | 43.07% | 40.30% | 45.09% | 37.59% | 50.18% | 58.45% | 36.72% | 42.94% | 41.34% | 48.60% | 46.20% |
| 14th CD | 37.75% | 50.22% | 47.46% | 50.67% | 42.85% | 45.01% | 60.27% | 49.19% | 45.44% | 52.50% | 44.69% | 42.55% | 36.44% | 40.70% | 39.21% | 31.89% | 47.71% | 56.21% | 34.61% | 32.27% | 34.59% | 44.20% | 41.20% |
| 15th CD | 22.62% | 26.23% | 29.08% | 26.55% | 29.08% | 26.35% | 45.29% | 33.08% | 34.50% | 29.07% | 24.65% | 33.25% | 28.68% | 0.00% | 34.98% | 23.47% | 37.66% | 47.23% | 28.08% | 32.15% | 25.08% | 34.10% | 31.40% |
| 16th CD | 32.08% | 41.07% | 41.11% | 35.28% | 39.59% | 39.57% | 55.21% | 45.47% | 42.63% | 40.88% | 38.29% | 39.45% | 36.07% | 0.00% | 39.57% | 34.62% | 49.17% | 56.15% | 33.21% | 35.70% | 29.38% | 45.20% | 38.20% |
| 17th CD | 38.76% | 48.07% | 48.84% | 52.02% | 45.78% | 45.90% | 60.88% | 51.47% | 49.53% | 62.09% | 46.58% | 47.60% | 45.72% | 60.30% | 50.04% | 42.54% | 53.82% | 61.64% | 41.05% | 45.32% | 55.46% | 57.60% | 53.30% |
| 18th CD | 29.57% | 36.96% | 37.48% | 29.59% | 33.20% | 32.47% | 52.59% | 40.22% | 39.96% | 32.77% | 33.23% | 35.11% | 31.40% | 27.90% | 34.76% | 28.60% | 43.70% | 52.60% | 28.84% | 31.77% | 25.28% | 37.40% | 25.80% |
| Statewide | 46.73% | 57.54% | 54.93% | | 54.53% | 54.71% | 68.26% | 59.90% | 57.64% | | 55.83% | 54.86% | 49.45% | | 53.55% | 46.35% | 59.46% | 65.70% | 45.67% | 48.05% | | 57.60% | |
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