Illinois State House District 9

State Legislative District Profile (Lower Chamber)

Overview

District ID
il-hd-009
State
Illinois
Chamber
Lower chamber
District Code
009
Land Area
8.6 sq mi
Water Area
0.11 sq mi

Boundary

Boundary of Illinois State House District 9

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Cook County8.60 sq mi100.0%0.9%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Chicago city8.60 sq mi100.0%3.8%

Showing all 1 place

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
IL District 7107,07998.5%14.2%98.5%
IL District 51,6081.5%0.2%1.5%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
75,059
Active Voters
59,659 (79.5%)

Party Registration

This state's voter file does not record party registration.

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202635 (0.0%)<10 (—)0 (0.0%)
2023–202438,698 (51.6%)9,552 (12.7%)1,120 (1.5%)
2021–202222,734 (30.3%)8,027 (10.7%)858 (1.1%)
2019–202038,063 (50.7%)15,566 (20.7%)534 (0.7%)
2017–201825,924 (34.5%)10,437 (13.9%)667 (0.9%)
2015–201629,159 (38.8%)16,405 (21.9%)1,921 (2.6%)
2013–201414,852 (19.8%)3,298 (4.4%)657 (0.9%)
2011–201221,057 (28.1%)4,857 (6.5%)590 (0.8%)

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
112,096 (± 3,726)
Median Age
32.5
Median Household Income
$91,180 (± $5,320)
High School Graduate or Higher (age 25+)
92.0%
Bachelor's Degree or Higher (age 25+)
56.2%

Population by Age

GroupPeopleShare
Under 1817,90916.0%
18 to 6484,29475.2%
65 and over9,8938.8%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)13,99612.5%
White, not Hispanic33,96130.3%
Black, not Hispanic47,08242.0%
Asian, not Hispanic12,03110.7%
American Indian / Alaska Native, not Hispanic1330.1%
Native Hawaiian / Pacific Islander, not Hispanic160.0%
Some other race, not Hispanic4890.4%
Two or more races, not Hispanic4,3883.9%

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
102,748
Citizen Voting Age Population (CVAP)
85,038

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic91,33388.9%
Hispanic11,41011.1%
White33,13332.2%
Black46,65145.4%
Asian8,0637.8%
American Indian / Alaska Native1340.1%
Native Hawaiian / Pacific Islander140.0%
Two or More Races3640.4%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic76,54190.0%
Hispanic8,49410.0%
White31,55437.1%
Black36,32742.7%
Asian8,1799.6%
American Indian / Alaska Native2320.3%
Native Hawaiian / Pacific Islander00.0%
Two or More Races3150.4%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).