Overview
- District ID
- il-hd-070
- State
- Illinois
- Chamber
- Lower chamber
- District Code
- 070
- Land Area
- 421.9 sq mi
- Water Area
- 1.32 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 24 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 11 | 44,372 | 40.9% | 5.9% | 44.6% |
| IL District 14 | 41,951 | 38.6% | 5.6% | 47.8% |
| IL District 8 | 22,266 | 20.5% | 3.0% | 7.6% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 84,750
- Active Voters
- 79,367 (93.6%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 16,306 (19.2%) | <10 (—) | 102 (0.1%) |
| 2023–2024 | 62,790 (74.1%) | 5,111 (6.0%) | 7,227 (8.5%) |
| 2021–2022 | 45,313 (53.5%) | 5,890 (6.9%) | 10,832 (12.8%) |
| 2019–2020 | 55,997 (66.1%) | 10,941 (12.9%) | 6,896 (8.1%) |
| 2017–2018 | 41,683 (49.2%) | 7,186 (8.5%) | 7,417 (8.8%) |
| 2015–2016 | 43,030 (50.8%) | 9,255 (10.9%) | 14,274 (16.8%) |
| 2013–2014 | 26,679 (31.5%) | 914 (1.1%) | 7,695 (9.1%) |
| 2011–2012 | 32,402 (38.2%) | 1,300 (1.5%) | 8,053 (9.5%) |
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
- 109,361 (± 1,322)
- Median Age
- 41.1
- Median Household Income
- $115,814 (± $4,935)
- High School Graduate or Higher (age 25+)
- 96.3%
- Bachelor's Degree or Higher (age 25+)
- 45.9%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 26,486 | 24.2% |
| 18 to 64 | 63,045 | 57.6% |
| 65 and over | 19,830 | 18.1% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 12,350 | 11.3% |
| White, not Hispanic | 86,348 | 79.0% |
| Black, not Hispanic | 2,379 | 2.2% |
| Asian, not Hispanic | 4,180 | 3.8% |
| American Indian / Alaska Native, not Hispanic | 13 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 318 | 0.3% |
| Two or more races, not Hispanic | 3,773 | 3.5% |
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
- 106,728
- Citizen Voting Age Population (CVAP)
- 80,404
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 95,870 | 89.8% |
| Hispanic | 10,860 | 10.2% |
| White | 87,217 | 81.7% |
| Black | 2,323 | 2.2% |
| Asian | 3,613 | 3.4% |
| American Indian / Alaska Native | 14 | 0.0% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 314 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 73,808 | 91.8% |
| Hispanic | 6,603 | 8.2% |
| White | 68,062 | 84.7% |
| Black | 1,643 | 2.0% |
| Asian | 3,316 | 4.1% |
| American Indian / Alaska Native | 477 | 0.6% |
| Native Hawaiian / Pacific Islander | 2 | 0.0% |
| Two or More Races | 304 | 0.4% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
