Illinois State Senate District 57

State Legislative District Profile (Upper Chamber)

Overview

District ID
il-sd-057
State
Illinois
Chamber
Upper chamber (state senate)
District Code
057
Land Area
509.5 sq mi
Water Area
12.1 sq mi

Boundary

Boundary of Illinois State Senate District 57

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
St. Clair County505.35 sq mi99.2%76.8%
Madison County4.07 sq mi0.8%0.6%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Belleville city23.22 sq mi4.6%99.9%
East St. Louis city13.92 sq mi2.7%100.0%
Shiloh village10.19 sq mi2.0%81.5%
O'Fallon city9.74 sq mi1.9%61.6%
Mascoutah city9.58 sq mi1.9%99.4%
Freeburg village6.84 sq mi1.3%100.0%
Swansea village6.17 sq mi1.2%95.2%
Dupo village5.87 sq mi1.2%91.7%
Sauget village4.58 sq mi0.9%99.9%
Smithton village4.43 sq mi0.9%98.3%
Scott AFB CDP4.34 sq mi0.9%100.0%
Fairmont City village4.24 sq mi0.8%68.3%
Millstadt village3.49 sq mi0.7%98.2%
Fairview Heights city3.33 sq mi0.7%29.1%
Madison city3.23 sq mi0.6%22.8%
Washington Park village2.52 sq mi0.5%98.8%
Lebanon city2.48 sq mi0.5%92.0%
New Athens village2.09 sq mi0.4%98.7%
Venice city1.85 sq mi0.4%100.0%
Caseyville village1.52 sq mi0.3%20.9%
East Carondelet village1.18 sq mi0.2%100.0%
Brooklyn village0.81 sq mi0.2%100.0%
New Baden village0.79 sq mi0.2%43.1%
Columbia city0.72 sq mi0.1%6.9%
Rentchler CDP0.31 sq mi0.1%100.0%

Showing top 25 of 30 places

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 13141,78865.4%18.8%23.4%
IL District 1275,07034.6%10.0%76.6%

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

Voters

Registered Voters
174,749
Active Voters
156,757 (89.7%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202626,232 (15.0%)0 (0.0%)0 (0.0%)
2023–202498,882 (56.6%)11,615 (6.6%)8,328 (4.8%)
2021–202272,879 (41.7%)12,485 (7.1%)11,051 (6.3%)
2019–202094,959 (54.3%)22,930 (13.1%)6,723 (3.8%)
2017–201873,182 (41.9%)16,331 (9.3%)7,915 (4.5%)
2015–201682,404 (47.2%)27,424 (15.7%)17,700 (10.1%)
2013–201453,279 (30.5%)9,531 (5.5%)6,776 (3.9%)
2011–201269,167 (39.6%)10,253 (5.9%)8,318 (4.8%)

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
213,995 (± 1,264)
Median Age
39.8
Median Household Income
$70,993 (± $1,892)
High School Graduate or Higher (age 25+)
93.4%
Bachelor's Degree or Higher (age 25+)
30.3%

Population by Age

GroupPeopleShare
Under 1849,63423.2%
18 to 64126,83659.3%
65 and over37,52517.5%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)9,4514.4%
White, not Hispanic122,00157.0%
Black, not Hispanic65,05930.4%
Asian, not Hispanic3,2081.5%
American Indian / Alaska Native, not Hispanic3760.2%
Native Hawaiian / Pacific Islander, not Hispanic560.0%
Some other race, not Hispanic1,2500.6%
Two or more races, not Hispanic12,5945.9%

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
211,191
Citizen Voting Age Population (CVAP)
161,836

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic202,68396.0%
Hispanic8,5124.0%
White123,61958.5%
Black65,26330.9%
Asian2,2851.1%
American Indian / Alaska Native3600.2%
Native Hawaiian / Pacific Islander550.0%
Two or More Races1,4390.7%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic156,77196.9%
Hispanic5,0673.1%
White99,77761.7%
Black51,43531.8%
Asian2,4451.5%
American Indian / Alaska Native3,3262.1%
Native Hawaiian / Pacific Islander230.0%
Two or More Races7000.4%

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