Overview
- District ID
- il-hd-077
- State
- Illinois
- Chamber
- Lower chamber
- District Code
- 077
- Land Area
- 34 sq mi
- Water Area
- 0.13 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 14 places
Overlapping Congressional Districts
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 60,138
- Active Voters
- 57,886 (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 | 7,092 (11.8%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 32,243 (53.6%) | 3,958 (6.6%) | 2,493 (4.1%) |
| 2021–2022 | 18,425 (30.6%) | 4,695 (7.8%) | 3,013 (5.0%) |
| 2019–2020 | 31,375 (52.2%) | 7,919 (13.2%) | 1,727 (2.9%) |
| 2017–2018 | 21,033 (35.0%) | 5,732 (9.5%) | 2,349 (3.9%) |
| 2015–2016 | 25,191 (41.9%) | 10,582 (17.6%) | 4,523 (7.5%) |
| 2013–2014 | 14,230 (23.7%) | 2,662 (4.4%) | 2,111 (3.5%) |
| 2011–2012 | 17,660 (29.4%) | 1,969 (3.3%) | 2,410 (4.0%) |
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
- 106,252 (± 2,158)
- Median Age
- 38.9
- Median Household Income
- $76,505 (± $2,807)
- High School Graduate or Higher (age 25+)
- 75.9%
- Bachelor's Degree or Higher (age 25+)
- 17.5%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 23,864 | 22.5% |
| 18 to 64 | 67,193 | 63.2% |
| 65 and over | 15,195 | 14.3% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 64,718 | 60.9% |
| White, not Hispanic | 33,407 | 31.4% |
| Black, not Hispanic | 3,047 | 2.9% |
| Asian, not Hispanic | 3,558 | 3.3% |
| American Indian / Alaska Native, not Hispanic | 65 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 127 | 0.1% |
| Two or more races, not Hispanic | 1,330 | 1.3% |
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
- 85,635
- Citizen Voting Age Population (CVAP)
- 62,843
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 37,539 | 43.8% |
| Hispanic | 48,096 | 56.2% |
| White | 30,399 | 35.5% |
| Black | 3,030 | 3.5% |
| Asian | 2,946 | 3.4% |
| American Indian / Alaska Native | 66 | 0.1% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 113 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 32,313 | 51.4% |
| Hispanic | 30,522 | 48.6% |
| White | 26,532 | 42.2% |
| Black | 2,776 | 4.4% |
| Asian | 2,659 | 4.2% |
| American Indian / Alaska Native | 279 | 0.4% |
| Native Hawaiian / Pacific Islander | 3 | 0.0% |
| Two or More Races | 103 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
