Overview
- District ID
- il-sd-016
- State
- Illinois
- Chamber
- Upper chamber (state senate)
- District Code
- 016
- Land Area
- 27.2 sq mi
- Water Area
- 0.07 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 | 27.16 sq mi | 100.0% | 2.9% |
Showing all 1 county
Places
Showing all 9 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 1 | 97,090 | 44.7% | 12.9% | 35.0% |
| IL District 6 | 54,506 | 25.1% | 7.2% | 39.6% |
| IL District 4 | 33,707 | 15.5% | 4.5% | 15.9% |
| IL District 7 | 31,871 | 14.7% | 4.2% | 9.5% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 141,531
- Active Voters
- 129,369 (91.4%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 4,211 (3.0%) | <10 (—) | 0 (0.0%) |
| 2023–2024 | 70,882 (50.1%) | 19,946 (14.1%) | 2,655 (1.9%) |
| 2021–2022 | 45,741 (32.3%) | 18,112 (12.8%) | 3,132 (2.2%) |
| 2019–2020 | 75,743 (53.5%) | 32,605 (23.0%) | 1,654 (1.2%) |
| 2017–2018 | 54,688 (38.6%) | 27,357 (19.3%) | 2,067 (1.5%) |
| 2015–2016 | 67,740 (47.9%) | 41,782 (29.5%) | 4,449 (3.1%) |
| 2013–2014 | 40,873 (28.9%) | 9,990 (7.1%) | 2,182 (1.5%) |
| 2011–2012 | 55,267 (39.0%) | 14,023 (9.9%) | 2,175 (1.5%) |
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
- 209,032 (± 5,059)
- Median Age
- 37.8
- Median Household Income
- $59,154 (± $2,611)
- High School Graduate or Higher (age 25+)
- 83.5%
- Bachelor's Degree or Higher (age 25+)
- 19.1%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 48,935 | 23.4% |
| 18 to 64 | 127,238 | 60.9% |
| 65 and over | 32,859 | 15.7% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 55,627 | 26.6% |
| White, not Hispanic | 46,258 | 22.1% |
| Black, not Hispanic | 98,722 | 47.2% |
| Asian, not Hispanic | 3,598 | 1.7% |
| American Indian / Alaska Native, not Hispanic | 211 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 24 | 0.0% |
| Some other race, not Hispanic | 679 | 0.3% |
| Two or more races, not Hispanic | 3,913 | 1.9% |
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
- 190,727
- Citizen Voting Age Population (CVAP)
- 143,025
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 147,683 | 77.4% |
| Hispanic | 43,043 | 22.6% |
| White | 43,418 | 22.8% |
| Black | 98,408 | 51.6% |
| Asian | 2,775 | 1.5% |
| American Indian / Alaska Native | 219 | 0.1% |
| Native Hawaiian / Pacific Islander | 24 | 0.0% |
| Two or More Races | 561 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 116,461 | 81.4% |
| Hispanic | 26,565 | 18.6% |
| White | 34,703 | 24.3% |
| Black | 78,555 | 54.9% |
| Asian | 2,351 | 1.6% |
| American Indian / Alaska Native | 675 | 0.5% |
| Native Hawaiian / Pacific Islander | 25 | 0.0% |
| Two or More Races | 519 | 0.4% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).