Overview
- District ID
- il-sd-043
- State
- Illinois
- Chamber
- Upper chamber (state senate)
- District Code
- 043
- Land Area
- 201.3 sq mi
- Water Area
- 7.26 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 25 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 14 | 126,864 | 58.5% | 16.8% | 59.2% |
| IL District 11 | 69,266 | 31.9% | 9.2% | 11.6% |
| IL District 1 | 20,826 | 9.6% | 2.8% | 29.2% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 133,470
- Active Voters
- 127,147 (95.3%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 18,960 (14.2%) | 259 (0.2%) | <10 (—) |
| 2023–2024 | 86,465 (64.8%) | 11,150 (8.4%) | 8,129 (6.1%) |
| 2021–2022 | 60,589 (45.4%) | 12,936 (9.7%) | 10,438 (7.8%) |
| 2019–2020 | 84,355 (63.2%) | 23,538 (17.6%) | 6,833 (5.1%) |
| 2017–2018 | 60,533 (45.4%) | 15,349 (11.5%) | 8,117 (6.1%) |
| 2015–2016 | 66,196 (49.6%) | 23,571 (17.7%) | 14,847 (11.1%) |
| 2013–2014 | 41,156 (30.8%) | 4,392 (3.3%) | 7,836 (5.9%) |
| 2011–2012 | 51,535 (38.6%) | 5,031 (3.8%) | 8,293 (6.2%) |
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
- 218,418 (± 2,626)
- Median Age
- 38.1
- Median Household Income
- $86,194 (± $2,542)
- High School Graduate or Higher (age 25+)
- 85.5%
- Bachelor's Degree or Higher (age 25+)
- 26.5%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 48,268 | 22.1% |
| 18 to 64 | 136,558 | 62.5% |
| 65 and over | 33,592 | 15.4% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 72,710 | 33.3% |
| White, not Hispanic | 99,064 | 45.4% |
| Black, not Hispanic | 30,415 | 13.9% |
| Asian, not Hispanic | 8,672 | 4.0% |
| American Indian / Alaska Native, not Hispanic | 41 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 12 | 0.0% |
| Some other race, not Hispanic | 879 | 0.4% |
| Two or more races, not Hispanic | 6,625 | 3.0% |
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
- 198,122
- Citizen Voting Age Population (CVAP)
- 150,921
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 141,774 | 71.6% |
| Hispanic | 56,349 | 28.4% |
| White | 99,136 | 50.0% |
| Black | 29,893 | 15.1% |
| Asian | 7,337 | 3.7% |
| American Indian / Alaska Native | 43 | 0.0% |
| Native Hawaiian / Pacific Islander | 28 | 0.0% |
| Two or More Races | 639 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 116,407 | 77.1% |
| Hispanic | 34,518 | 22.9% |
| White | 84,302 | 55.9% |
| Black | 24,530 | 16.3% |
| Asian | 6,610 | 4.4% |
| American Indian / Alaska Native | 929 | 0.6% |
| Native Hawaiian / Pacific Islander | 28 | 0.0% |
| Two or More Races | 325 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
