Overview
- District ID
- il-sd-056
- State
- Illinois
- Chamber
- Upper chamber (state senate)
- District Code
- 056
- Land Area
- 228 sq mi
- Water Area
- 16.4 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 2 counties
Places
Showing all 23 places
Overlapping Congressional Districts
| Congressional district | Population in both | Share of this district's population | Share of the congressional district's population | Share of this district's land |
|---|
| IL District 13 | 195,175 | 89.8% | 25.9% | 89.0% |
| IL District 15 | 13,781 | 6.3% | 1.8% | 4.9% |
| IL District 12 | 8,288 | 3.8% | 1.1% | 6.1% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 155,508
- Active Voters
- 152,732 (98.2%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 26,484 (17.0%) | <10 (—) | <10 (—) |
| 2023–2024 | 101,731 (65.4%) | 8,176 (5.3%) | 12,500 (8.0%) |
| 2021–2022 | 72,728 (46.8%) | 9,967 (6.4%) | 14,433 (9.3%) |
| 2019–2020 | 92,498 (59.5%) | 19,772 (12.7%) | 7,993 (5.1%) |
| 2017–2018 | 70,186 (45.1%) | 14,940 (9.6%) | 10,553 (6.8%) |
| 2015–2016 | 77,005 (49.5%) | 23,315 (15.0%) | 19,086 (12.3%) |
| 2013–2014 | 47,159 (30.3%) | 7,651 (4.9%) | 6,310 (4.1%) |
| 2011–2012 | 62,659 (40.3%) | 5,844 (3.8%) | 8,184 (5.3%) |
Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.
Browse the voter list for this district (premium access; sign-in required)
Source: Civitech voter file snapshot as of 12/15/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".
Demographics
- Total Population
- 214,990 (± 1,724)
- Median Age
- 39.2
- Median Household Income
- $70,189 (± $2,137)
- High School Graduate or Higher (age 25+)
- 93.1%
- Bachelor's Degree or Higher (age 25+)
- 29.9%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 44,694 | 20.8% |
| 18 to 64 | 132,084 | 61.4% |
| 65 and over | 38,212 | 17.8% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 12,614 | 5.9% |
| White, not Hispanic | 162,777 | 75.7% |
| Black, not Hispanic | 24,152 | 11.2% |
| Asian, not Hispanic | 2,530 | 1.2% |
| American Indian / Alaska Native, not Hispanic | 256 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 34 | 0.0% |
| Some other race, not Hispanic | 466 | 0.2% |
| Two or more races, not Hispanic | 12,161 | 5.7% |
Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.
Citizen Voting Age Population
- Total Citizen Population
- 211,806
- Citizen Voting Age Population (CVAP)
- 167,412
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 201,129 | 95.0% |
| Hispanic | 10,678 | 5.0% |
| White | 164,624 | 77.7% |
| Black | 24,064 | 11.4% |
| Asian | 1,877 | 0.9% |
| American Indian / Alaska Native | 254 | 0.1% |
| Native Hawaiian / Pacific Islander | 39 | 0.0% |
| Two or More Races | 661 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 160,559 | 95.9% |
| Hispanic | 6,850 | 4.1% |
| White | 135,481 | 80.9% |
| Black | 19,256 | 11.5% |
| Asian | 2,206 | 1.3% |
| American Indian / Alaska Native | 3,356 | 2.0% |
| Native Hawaiian / Pacific Islander | 34 | 0.0% |
| Two or More Races | 425 | 0.3% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
