Overview
- District ID
- il-sd-046
- State
- Illinois
- Chamber
- Upper chamber (state senate)
- District Code
- 046
- Land Area
- 300.6 sq mi
- Water Area
- 6.45 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 4 counties
Places
Showing all 16 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 17 | 177,630 | 81.9% | 23.6% | 22.8% |
| IL District 16 | 39,357 | 18.1% | 5.2% | 77.2% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 149,959
- Active Voters
- 134,014 (89.4%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 32,215 (21.5%) | <10 (—) | 2,940 (2.0%) |
| 2023–2024 | 92,247 (61.5%) | 9,345 (6.2%) | 8,396 (5.6%) |
| 2021–2022 | 64,142 (42.8%) | 14,151 (9.4%) | 12,721 (8.5%) |
| 2019–2020 | 80,356 (53.6%) | 21,391 (14.3%) | 7,303 (4.9%) |
| 2017–2018 | 60,282 (40.2%) | 14,711 (9.8%) | 10,162 (6.8%) |
| 2015–2016 | 64,521 (43.0%) | 20,151 (13.4%) | 19,065 (12.7%) |
| 2013–2014 | 38,691 (25.8%) | 3,837 (2.6%) | 11,288 (7.5%) |
| 2011–2012 | 52,096 (34.7%) | 3,714 (2.5%) | 10,946 (7.3%) |
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
- 216,809 (± 2,484)
- Median Age
- 34.2
- Median Household Income
- $57,682 (± $2,140)
- High School Graduate or Higher (age 25+)
- 93.3%
- Bachelor's Degree or Higher (age 25+)
- 34.2%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 44,458 | 20.5% |
| 18 to 64 | 137,049 | 63.2% |
| 65 and over | 35,302 | 16.3% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 16,891 | 7.8% |
| White, not Hispanic | 141,302 | 65.2% |
| Black, not Hispanic | 39,965 | 18.4% |
| Asian, not Hispanic | 6,400 | 3.0% |
| American Indian / Alaska Native, not Hispanic | 69 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 25 | 0.0% |
| Some other race, not Hispanic | 841 | 0.4% |
| Two or more races, not Hispanic | 11,316 | 5.2% |
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
- 207,910
- Citizen Voting Age Population (CVAP)
- 165,537
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 194,115 | 93.4% |
| Hispanic | 13,796 | 6.6% |
| White | 142,652 | 68.6% |
| Black | 38,073 | 18.3% |
| Asian | 3,741 | 1.8% |
| American Indian / Alaska Native | 68 | 0.0% |
| Native Hawaiian / Pacific Islander | 23 | 0.0% |
| Two or More Races | 1,388 | 0.7% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 156,954 | 94.8% |
| Hispanic | 8,582 | 5.2% |
| White | 121,465 | 73.4% |
| Black | 30,239 | 18.3% |
| Asian | 3,777 | 2.3% |
| American Indian / Alaska Native | 810 | 0.5% |
| Native Hawaiian / Pacific Islander | 23 | 0.0% |
| Two or More Races | 744 | 0.4% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
