2020 Illinois State Senate Election
Illinois · State
General Election
November 3, 2020
Contests
20
Candidates
35
Valid votes
1,736,935
Seats shown are those contested that year, not the full chamber. Alternating districts and boundary changes affect comparisons.
Party results
| Party | Votes | Vote % | Seats | Seats % | Seat change vs 2018 |
|---|---|---|---|---|---|
| Democratic | 1,108,928 | 63.8% | 17 | 85.0% | −7 |
| Republican | 627,734 | 36.1% | 3 | 15.0% | −12 |
| Independent | 273 | 0.0% | 0 | 0.0% | — |
| Party | 2018 seats | 2020 seats | Change | 2018 Vote % | 2020 Vote % | Vote share Δ |
|---|---|---|---|---|---|---|
| Democratic | 24 | 17 | −7 | 55.0% | 63.8% | +8.8 pp |
| Republican | 15 | 3 | −12 | 43.6% | 36.1% | −7.4 pp |
Seat changes by party
39 → 20 seats
| Party | 2010 seats | 2020 seats | Change | 2010 Vote % | 2020 Vote % | Vote share Δ |
|---|---|---|---|---|---|---|
| Democratic | 12 | 17 | +5 | 51.8% | 63.8% | +12.1 pp |
| Republican | 9 | 3 | −6 | 48.2% | 36.1% | −12.1 pp |
Seat changes by party
21 → 20 seats
| Party | 2012 seats | 2020 seats | Change | 2012 Vote % | 2020 Vote % | Vote share Δ |
|---|---|---|---|---|---|---|
| Democratic | 40 | 17 | −23 | 57.0% | 63.8% | +6.8 pp |
| Republican | 19 | 3 | −16 | 43.0% | 36.1% | −6.8 pp |
Seat changes by party
59 → 20 seats
| Party | 2016 seats | 2020 seats | Change | 2016 Vote % | 2020 Vote % | Vote share Δ |
|---|---|---|---|---|---|---|
| Democratic | 26 | 17 | −9 | 56.1% | 63.8% | +7.8 pp |
| Republican | 14 | 3 | −11 | 43.9% | 36.1% | −7.8 pp |
Seat changes by party
40 → 20 seats
| Party | 2018 seats | 2020 seats | Change | 2018 Vote % | 2020 Vote % | Vote share Δ |
|---|---|---|---|---|---|---|
| Democratic | 24 | 17 | −7 | 55.0% | 63.8% | +8.8 pp |
| Republican | 15 | 3 | −12 | 43.6% | 36.1% | −7.4 pp |
Seat changes by party
39 → 20 seats
Historical trends
Democratic Republican
Chart data
| Election | Democratic | Republican |
|---|---|---|
| November 1, 2010 | 12 | 9 |
| November 1, 2012 | 40 | 19 |
| November 1, 2016 | 26 | 14 |
| November 1, 2018 | 24 | 15 |
| November 3, 2020 | 17 | 3 |
Democratic Republican
Chart data
| Election | Democratic | Republican |
|---|---|---|
| November 1, 2010 | 12 | 9 |
| November 1, 2012 | 40 | 19 |
| November 1, 2016 | 26 | 14 |
| November 1, 2018 | 24 | 15 |
| November 3, 2020 | 17 | 3 |
Democratic Republican
Chart data
| Election | Democratic | Republican |
|---|---|---|
| November 1, 2010 | 51.8% | 48.2% |
| November 1, 2012 | 57.0% | 43.0% |
| November 1, 2016 | 56.1% | 43.9% |
| November 1, 2018 | 55.0% | 43.6% |
| November 3, 2020 | 63.8% | 36.1% |
District results
22 contests
Swipe to compare parties · Tap a district for full results
| District | Dem | Rep | Ind | ||||
|---|---|---|---|---|---|---|---|
| Votes | Vote % | Votes | Vote % | Votes | Vote % | ||
| 23,72623.3% | 23.3% | 78,01076.7% | 76.7% | —— | — | 101,736 | |
| —— | — | 85,257100.0% | 100.0% | —— | — | 85,257 | |
Parties with seats, or the top three by votes. Valid votes include all candidates.
| District | Elected | Runner-up | |
|---|---|---|---|
Darren BaileyRep78,010 votes · 76.7%Runner-upCynthia Ann GivenDem23,726 votes · 23.3% | Cynthia Ann GivenDem23,726 votes · 23.3% | 53.4percentage points | |
| Terri BryantRep85,257 votes · 100.0% | — | — |