Overview
- District ID
- il-hd-113
- State
- Illinois
- Chamber
- Lower chamber
- District Code
- 113
- Land Area
- 87.8 sq mi
- Water Area
- 1.76 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 2 counties
Places
Showing all 13 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 13 | 97,029 | 89.4% | 12.9% | 73.3% |
| IL District 12 | 11,445 | 10.6% | 1.5% | 26.7% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 87,691
- Active Voters
- 79,488 (90.6%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 13,262 (15.1%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 49,616 (56.6%) | 5,028 (5.7%) | 3,613 (4.1%) |
| 2021–2022 | 36,401 (41.5%) | 6,118 (7.0%) | 4,636 (5.3%) |
| 2019–2020 | 47,376 (54.0%) | 11,684 (13.3%) | 3,028 (3.5%) |
| 2017–2018 | 36,491 (41.6%) | 8,082 (9.2%) | 3,748 (4.3%) |
| 2015–2016 | 40,596 (46.3%) | 13,866 (15.8%) | 8,148 (9.3%) |
| 2013–2014 | 25,765 (29.4%) | 3,934 (4.5%) | 3,380 (3.9%) |
| 2011–2012 | 34,251 (39.1%) | 3,966 (4.5%) | 4,098 (4.7%) |
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
- 106,263 (± 1,639)
- Median Age
- 40.4
- Median Household Income
- $71,009 (± $2,181)
- High School Graduate or Higher (age 25+)
- 93.8%
- Bachelor's Degree or Higher (age 25+)
- 31.4%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 23,468 | 22.1% |
| 18 to 64 | 64,150 | 60.4% |
| 65 and over | 18,645 | 17.5% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 5,677 | 5.3% |
| White, not Hispanic | 60,675 | 57.1% |
| Black, not Hispanic | 29,822 | 28.1% |
| Asian, not Hispanic | 1,969 | 1.9% |
| American Indian / Alaska Native, not Hispanic | 240 | 0.2% |
| Native Hawaiian / Pacific Islander, not Hispanic | 56 | 0.1% |
| Some other race, not Hispanic | 843 | 0.8% |
| Two or more races, not Hispanic | 6,981 | 6.6% |
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
- 104,492
- Citizen Voting Age Population (CVAP)
- 81,132
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 99,525 | 95.2% |
| Hispanic | 4,967 | 4.8% |
| White | 62,072 | 59.4% |
| Black | 29,893 | 28.6% |
| Asian | 1,337 | 1.3% |
| American Indian / Alaska Native | 227 | 0.2% |
| Native Hawaiian / Pacific Islander | 58 | 0.1% |
| Two or More Races | 511 | 0.5% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 78,105 | 96.3% |
| Hispanic | 3,029 | 3.7% |
| White | 51,432 | 63.4% |
| Black | 23,674 | 29.2% |
| Asian | 1,489 | 1.8% |
| American Indian / Alaska Native | 2,031 | 2.5% |
| Native Hawaiian / Pacific Islander | 24 | 0.0% |
| Two or More Races | 260 | 0.3% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
