Overview
- District ID
- il-hd-084
- State
- Illinois
- Chamber
- Lower chamber
- District Code
- 084
- Land Area
- 28.9 sq mi
- Water Area
- 0.45 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 5 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 | 63,313 | 58.4% | 8.4% | 61.9% |
| IL District 11 | 45,109 | 41.6% | 6.0% | 38.1% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 71,694
- Active Voters
- 63,960 (89.2%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 11,961 (16.7%) | 426 (0.6%) | 205 (0.3%) |
| 2023–2024 | 43,613 (60.8%) | 5,210 (7.3%) | 3,032 (4.2%) |
| 2021–2022 | 29,343 (40.9%) | 5,543 (7.7%) | 4,207 (5.9%) |
| 2019–2020 | 41,182 (57.4%) | 11,837 (16.5%) | 3,319 (4.6%) |
| 2017–2018 | 28,739 (40.1%) | 6,290 (8.8%) | 3,243 (4.5%) |
| 2015–2016 | 30,303 (42.3%) | 9,764 (13.6%) | 6,625 (9.2%) |
| 2013–2014 | 16,003 (22.3%) | 1,004 (1.4%) | 3,084 (4.3%) |
| 2011–2012 | 21,452 (29.9%) | 2,153 (3.0%) | 3,304 (4.6%) |
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
- 110,202 (± 2,450)
- Median Age
- 36.0
- Median Household Income
- $112,896 (± $5,317)
- High School Graduate or Higher (age 25+)
- 92.7%
- Bachelor's Degree or Higher (age 25+)
- 52.0%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 28,472 | 25.8% |
| 18 to 64 | 70,764 | 64.2% |
| 65 and over | 10,966 | 10.0% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 22,755 | 20.6% |
| White, not Hispanic | 46,738 | 42.4% |
| Black, not Hispanic | 14,329 | 13.0% |
| Asian, not Hispanic | 21,837 | 19.8% |
| American Indian / Alaska Native, not Hispanic | 27 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 6 | 0.0% |
| Some other race, not Hispanic | 619 | 0.6% |
| Two or more races, not Hispanic | 3,891 | 3.5% |
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
- 93,447
- Citizen Voting Age Population (CVAP)
- 66,829
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 75,787 | 81.1% |
| Hispanic | 17,662 | 18.9% |
| White | 44,933 | 48.1% |
| Black | 13,780 | 14.7% |
| Asian | 14,089 | 15.1% |
| American Indian / Alaska Native | 27 | 0.0% |
| Native Hawaiian / Pacific Islander | 8 | 0.0% |
| Two or More Races | 145 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 55,556 | 83.1% |
| Hispanic | 11,272 | 16.9% |
| White | 35,355 | 52.9% |
| Black | 10,153 | 15.2% |
| Asian | 9,731 | 14.6% |
| American Indian / Alaska Native | 334 | 0.5% |
| Native Hawaiian / Pacific Islander | 7 | 0.0% |
| Two or More Races | 86 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
