Overview
- District ID
- il-hd-117
- State
- Illinois
- Chamber
- Lower chamber
- District Code
- 117
- Land Area
- 2,674.6 sq mi
- Water Area
- 46.6 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 10 counties
Places
Showing top 25 of 46 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 12 | 108,516 | 100.0% | 14.4% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 79,578
- Active Voters
- 76,673 (96.3%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 10,218 (12.8%) | <10 (—) | 0 (0.0%) |
| 2023–2024 | 52,416 (65.9%) | 2,880 (3.6%) | 17,132 (21.5%) |
| 2021–2022 | 40,888 (51.4%) | 2,811 (3.5%) | 15,006 (18.9%) |
| 2019–2020 | 48,616 (61.1%) | 5,765 (7.2%) | 13,250 (16.7%) |
| 2017–2018 | 39,947 (50.2%) | 6,151 (7.7%) | 10,523 (13.2%) |
| 2015–2016 | 42,683 (53.6%) | 9,176 (11.5%) | 16,509 (20.7%) |
| 2013–2014 | 29,920 (37.6%) | 3,936 (4.9%) | 8,437 (10.6%) |
| 2011–2012 | 34,685 (43.6%) | 5,654 (7.1%) | 8,360 (10.5%) |
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
- 107,786 (± 1,189)
- Median Age
- 44.1
- Median Household Income
- $61,277 (± $1,845)
- High School Graduate or Higher (age 25+)
- 89.7%
- Bachelor's Degree or Higher (age 25+)
- 18.2%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 21,934 | 20.3% |
| 18 to 64 | 63,439 | 58.9% |
| 65 and over | 22,413 | 20.8% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 2,400 | 2.2% |
| White, not Hispanic | 97,169 | 90.1% |
| Black, not Hispanic | 3,892 | 3.6% |
| Asian, not Hispanic | 481 | 0.4% |
| American Indian / Alaska Native, not Hispanic | 171 | 0.2% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 277 | 0.3% |
| Two or more races, not Hispanic | 3,396 | 3.2% |
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
- 107,230
- Citizen Voting Age Population (CVAP)
- 85,296
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 105,145 | 98.1% |
| Hispanic | 2,089 | 1.9% |
| White | 97,870 | 91.3% |
| Black | 3,986 | 3.7% |
| Asian | 358 | 0.3% |
| American Indian / Alaska Native | 167 | 0.2% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 284 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 84,098 | 98.6% |
| Hispanic | 1,201 | 1.4% |
| White | 78,453 | 92.0% |
| Black | 3,765 | 4.4% |
| Asian | 407 | 0.5% |
| American Indian / Alaska Native | 1,349 | 1.6% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 125 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
