Overview
- District ID
- il-sd-008
- State
- Illinois
- Chamber
- Upper chamber (state senate)
- District Code
- 008
- Land Area
- 28.1 sq mi
- Water Area
- 0.01 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Cook County | 28.15 sq mi | 100.0% | 3.0% |
Showing all 1 county
Places
Showing all 6 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 9 | 155,625 | 71.5% | 20.6% | 70.7% |
| IL District 5 | 52,827 | 24.3% | 7.0% | 27.4% |
| IL District 3 | 9,118 | 4.2% | 1.2% | 1.9% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 146,386
- Active Voters
- 137,322 (93.8%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 12,125 (8.3%) | <10 (—) | 0 (0.0%) |
| 2023–2024 | 90,541 (61.9%) | 22,705 (15.5%) | 4,892 (3.3%) |
| 2021–2022 | 58,705 (40.1%) | 22,984 (15.7%) | 5,668 (3.9%) |
| 2019–2020 | 89,575 (61.2%) | 35,349 (24.1%) | 3,108 (2.1%) |
| 2017–2018 | 61,963 (42.3%) | 27,334 (18.7%) | 5,041 (3.4%) |
| 2015–2016 | 70,495 (48.2%) | 33,363 (22.8%) | 10,782 (7.4%) |
| 2013–2014 | 39,290 (26.8%) | 7,118 (4.9%) | 5,171 (3.5%) |
| 2011–2012 | 50,584 (34.6%) | 9,325 (6.4%) | 6,078 (4.2%) |
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
- 219,767 (± 4,378)
- Median Age
- 40.7
- Median Household Income
- $89,641 (± $3,704)
- High School Graduate or Higher (age 25+)
- 89.9%
- Bachelor's Degree or Higher (age 25+)
- 49.9%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 52,565 | 23.9% |
| 18 to 64 | 124,878 | 56.8% |
| 65 and over | 42,324 | 19.3% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 34,963 | 15.9% |
| White, not Hispanic | 108,703 | 49.5% |
| Black, not Hispanic | 13,105 | 6.0% |
| Asian, not Hispanic | 51,951 | 23.6% |
| American Indian / Alaska Native, not Hispanic | 221 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 40 | 0.0% |
| Some other race, not Hispanic | 1,110 | 0.5% |
| Two or more races, not Hispanic | 9,674 | 4.4% |
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
- 191,659
- Citizen Voting Age Population (CVAP)
- 142,604
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 163,834 | 85.5% |
| Hispanic | 27,822 | 14.5% |
| White | 105,394 | 55.0% |
| Black | 10,897 | 5.7% |
| Asian | 40,587 | 21.2% |
| American Indian / Alaska Native | 220 | 0.1% |
| Native Hawaiian / Pacific Islander | 40 | 0.0% |
| Two or More Races | 816 | 0.4% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 124,850 | 87.6% |
| Hispanic | 17,756 | 12.5% |
| White | 82,834 | 58.1% |
| Black | 8,472 | 5.9% |
| Asian | 32,328 | 22.7% |
| American Indian / Alaska Native | 586 | 0.4% |
| Native Hawaiian / Pacific Islander | 41 | 0.0% |
| Two or More Races | 655 | 0.5% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).