Overview
- District ID
- il-sd-012
- State
- Illinois
- Chamber
- Upper chamber (state senate)
- District Code
- 012
- Land Area
- 14.4 sq mi
- Water Area
- 0.38 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 | 14.41 sq mi | 100.0% | 1.5% |
Showing all 1 county
Places
| Place | Overlap | Share of district land | Share of place land |
|---|
| Chicago city | 13.62 sq mi | 94.5% | 6.0% |
| Cicero town | 0.79 sq mi | 5.5% | 13.4% |
Showing all 2 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 4 | 188,891 | 87.0% | 25.1% | 87.8% |
| IL District 7 | 28,224 | 13.0% | 3.7% | 12.2% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 96,183
- Active Voters
- 87,083 (90.5%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 162 (0.2%) | <10 (—) | 0 (0.0%) |
| 2023–2024 | 48,335 (50.3%) | 12,633 (13.1%) | 1,854 (1.9%) |
| 2021–2022 | 25,600 (26.6%) | 9,917 (10.3%) | 1,087 (1.1%) |
| 2019–2020 | 47,126 (49.0%) | 21,933 (22.8%) | 749 (0.8%) |
| 2017–2018 | 31,262 (32.5%) | 16,255 (16.9%) | 836 (0.9%) |
| 2015–2016 | 39,143 (40.7%) | 25,865 (26.9%) | 1,858 (1.9%) |
| 2013–2014 | 16,929 (17.6%) | 4,260 (4.4%) | 808 (0.8%) |
| 2011–2012 | 24,486 (25.5%) | 7,322 (7.6%) | 820 (0.9%) |
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
- 211,485 (± 5,767)
- Median Age
- 35.6
- Median Household Income
- $65,289 (± $3,265)
- High School Graduate or Higher (age 25+)
- 71.1%
- Bachelor's Degree or Higher (age 25+)
- 24.1%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 42,211 | 20.0% |
| 18 to 64 | 142,662 | 67.5% |
| 65 and over | 26,612 | 12.6% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 139,581 | 66.0% |
| White, not Hispanic | 25,378 | 12.0% |
| Black, not Hispanic | 12,753 | 6.0% |
| Asian, not Hispanic | 30,441 | 14.4% |
| American Indian / Alaska Native, not Hispanic | 168 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 130 | 0.1% |
| Some other race, not Hispanic | 474 | 0.2% |
| Two or more races, not Hispanic | 2,560 | 1.2% |
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
- 169,962
- Citizen Voting Age Population (CVAP)
- 129,462
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 61,930 | 36.4% |
| Hispanic | 108,032 | 63.6% |
| White | 24,508 | 14.4% |
| Black | 12,898 | 7.6% |
| Asian | 22,131 | 13.0% |
| American Indian / Alaska Native | 178 | 0.1% |
| Native Hawaiian / Pacific Islander | 131 | 0.1% |
| Two or More Races | 405 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 53,307 | 41.2% |
| Hispanic | 76,155 | 58.8% |
| White | 22,311 | 17.2% |
| Black | 12,377 | 9.6% |
| Asian | 17,897 | 13.8% |
| American Indian / Alaska Native | 398 | 0.3% |
| Native Hawaiian / Pacific Islander | 82 | 0.1% |
| Two or More Races | 310 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
