Overview
- District ID
- il-hd-034
- State
- Illinois
- Chamber
- Lower chamber
- District Code
- 034
- Land Area
- 288.8 sq mi
- Water Area
- 3.56 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 3 counties
Places
Showing all 19 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 2 | 74,714 | 68.9% | 9.9% | 98.6% |
| IL District 1 | 33,715 | 31.1% | 4.5% | 1.4% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 83,264
- Active Voters
- 76,530 (91.9%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 5,877 (7.1%) | 1,748 (2.1%) | 0 (0.0%) |
| 2023–2024 | 45,961 (55.2%) | 12,567 (15.1%) | 2,488 (3.0%) |
| 2021–2022 | 32,613 (39.2%) | 12,899 (15.5%) | 2,519 (3.0%) |
| 2019–2020 | 49,088 (59.0%) | 21,330 (25.6%) | 2,257 (2.7%) |
| 2017–2018 | 38,280 (46.0%) | 17,563 (21.1%) | 2,117 (2.5%) |
| 2015–2016 | 44,124 (53.0%) | 26,189 (31.5%) | 3,820 (4.6%) |
| 2013–2014 | 29,927 (35.9%) | 9,251 (11.1%) | 2,212 (2.7%) |
| 2011–2012 | 37,692 (45.3%) | 10,888 (13.1%) | 1,957 (2.4%) |
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
- 106,959 (± 3,255)
- Median Age
- 39.9
- Median Household Income
- $64,012 (± $3,665)
- High School Graduate or Higher (age 25+)
- 90.6%
- Bachelor's Degree or Higher (age 25+)
- 26.7%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 24,132 | 22.6% |
| 18 to 64 | 63,168 | 59.1% |
| 65 and over | 19,659 | 18.4% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 11,656 | 10.9% |
| White, not Hispanic | 20,842 | 19.5% |
| Black, not Hispanic | 70,116 | 65.6% |
| Asian, not Hispanic | 555 | 0.5% |
| American Indian / Alaska Native, not Hispanic | 16 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 14 | 0.0% |
| Some other race, not Hispanic | 612 | 0.6% |
| Two or more races, not Hispanic | 3,148 | 2.9% |
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
- 103,172
- Citizen Voting Age Population (CVAP)
- 79,393
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 93,814 | 90.9% |
| Hispanic | 9,361 | 9.1% |
| White | 21,214 | 20.6% |
| Black | 69,257 | 67.1% |
| Asian | 408 | 0.4% |
| American Indian / Alaska Native | 20 | 0.0% |
| Native Hawaiian / Pacific Islander | 15 | 0.0% |
| Two or More Races | 653 | 0.6% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 73,555 | 92.6% |
| Hispanic | 5,841 | 7.4% |
| White | 17,559 | 22.1% |
| Black | 55,022 | 69.3% |
| Asian | 430 | 0.5% |
| American Indian / Alaska Native | 664 | 0.8% |
| Native Hawaiian / Pacific Islander | 18 | 0.0% |
| Two or More Races | 402 | 0.5% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
