Overview
- District ID
- il-hd-078
- State
- Illinois
- Chamber
- Lower chamber
- District Code
- 078
- Land Area
- 11.1 sq mi
- Water Area
- 0 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Cook County | 11.09 sq mi | 100.0% | 1.2% |
Showing all 1 county
Places
Showing all 6 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 7 | 92,965 | 85.7% | 12.3% | 81.3% |
| IL District 3 | 13,215 | 12.2% | 1.8% | 12.0% |
| IL District 4 | 2,235 | 2.1% | 0.3% | 6.7% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 83,947
- Active Voters
- 78,631 (93.7%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 14,527 (17.3%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 54,193 (64.6%) | 17,299 (20.6%) | 1,643 (2.0%) |
| 2021–2022 | 40,598 (48.4%) | 16,859 (20.1%) | 2,145 (2.6%) |
| 2019–2020 | 54,512 (64.9%) | 27,392 (32.6%) | 1,113 (1.3%) |
| 2017–2018 | 44,008 (52.4%) | 22,485 (26.8%) | 2,055 (2.4%) |
| 2015–2016 | 45,810 (54.6%) | 27,173 (32.4%) | 4,594 (5.5%) |
| 2013–2014 | 29,176 (34.8%) | 7,726 (9.2%) | 2,510 (3.0%) |
| 2011–2012 | 35,480 (42.3%) | 10,177 (12.1%) | 2,535 (3.0%) |
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
- 105,687 (± 2,585)
- Median Age
- 40.4
- Median Household Income
- $87,986 (± $3,689)
- High School Graduate or Higher (age 25+)
- 93.7%
- Bachelor's Degree or Higher (age 25+)
- 54.4%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 24,024 | 22.7% |
| 18 to 64 | 61,749 | 58.4% |
| 65 and over | 19,914 | 18.8% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 18,321 | 17.3% |
| White, not Hispanic | 49,439 | 46.8% |
| Black, not Hispanic | 29,413 | 27.8% |
| Asian, not Hispanic | 3,848 | 3.6% |
| American Indian / Alaska Native, not Hispanic | 84 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 16 | 0.0% |
| Some other race, not Hispanic | 300 | 0.3% |
| Two or more races, not Hispanic | 4,266 | 4.0% |
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
- 101,204
- Citizen Voting Age Population (CVAP)
- 77,529
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 85,127 | 84.1% |
| Hispanic | 16,079 | 15.9% |
| White | 48,994 | 48.4% |
| Black | 29,346 | 29.0% |
| Asian | 3,248 | 3.2% |
| American Indian / Alaska Native | 84 | 0.1% |
| Native Hawaiian / Pacific Islander | 17 | 0.0% |
| Two or More Races | 684 | 0.7% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 67,415 | 87.0% |
| Hispanic | 10,116 | 13.0% |
| White | 38,832 | 50.1% |
| Black | 24,704 | 31.9% |
| Asian | 3,383 | 4.4% |
| American Indian / Alaska Native | 299 | 0.4% |
| Native Hawaiian / Pacific Islander | 14 | 0.0% |
| Two or More Races | 303 | 0.4% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
