Overview
- District ID
- il-hd-087
- State
- Illinois
- Chamber
- Lower chamber
- District Code
- 087
- Land Area
- 1,716.6 sq mi
- Water Area
- 1.85 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 8 counties
Places
Showing top 25 of 45 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 16 | 55,095 | 50.7% | 7.3% | 20.4% |
| IL District 15 | 41,827 | 38.5% | 5.5% | 52.9% |
| IL District 13 | 6,029 | 5.5% | 0.8% | 9.8% |
| IL District 17 | 5,699 | 5.2% | 0.8% | 16.9% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 74,417
- Active Voters
- 72,493 (97.4%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 16,418 (22.1%) | 0 (0.0%) | 902 (1.2%) |
| 2023–2024 | 55,947 (75.2%) | 2,526 (3.4%) | 10,567 (14.2%) |
| 2021–2022 | 42,823 (57.5%) | 2,740 (3.7%) | 15,577 (20.9%) |
| 2019–2020 | 51,044 (68.6%) | 6,380 (8.6%) | 11,335 (15.2%) |
| 2017–2018 | 38,982 (52.4%) | 4,633 (6.2%) | 13,311 (17.9%) |
| 2015–2016 | 42,567 (57.2%) | 6,760 (9.1%) | 20,398 (27.4%) |
| 2013–2014 | 29,343 (39.4%) | 1,136 (1.5%) | 10,754 (14.5%) |
| 2011–2012 | 34,525 (46.4%) | 1,576 (2.1%) | 11,575 (15.6%) |
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
- 107,486 (± 1,385)
- Median Age
- 41.9
- Median Household Income
- $78,896 (± $2,208)
- High School Graduate or Higher (age 25+)
- 94.5%
- Bachelor's Degree or Higher (age 25+)
- 28.1%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 23,291 | 21.7% |
| 18 to 64 | 62,276 | 57.9% |
| 65 and over | 21,919 | 20.4% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 2,902 | 2.7% |
| White, not Hispanic | 97,398 | 90.6% |
| Black, not Hispanic | 2,395 | 2.2% |
| Asian, not Hispanic | 887 | 0.8% |
| American Indian / Alaska Native, not Hispanic | 83 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 5 | 0.0% |
| Some other race, not Hispanic | 177 | 0.2% |
| Two or more races, not Hispanic | 3,639 | 3.4% |
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
- 106,750
- Citizen Voting Age Population (CVAP)
- 83,506
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 104,007 | 97.4% |
| Hispanic | 2,739 | 2.6% |
| White | 98,313 | 92.1% |
| Black | 2,344 | 2.2% |
| Asian | 590 | 0.6% |
| American Indian / Alaska Native | 83 | 0.1% |
| Native Hawaiian / Pacific Islander | 5 | 0.0% |
| Two or More Races | 74 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 81,708 | 97.8% |
| Hispanic | 1,800 | 2.2% |
| White | 77,711 | 93.1% |
| Black | 2,588 | 3.1% |
| Asian | 623 | 0.7% |
| American Indian / Alaska Native | 757 | 0.9% |
| Native Hawaiian / Pacific Islander | 6 | 0.0% |
| Two or More Races | 55 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).