Illinois State Senate District 19

State Legislative District Profile (Upper Chamber)

Overview

District ID
il-sd-019
State
Illinois
Chamber
Upper chamber (state senate)
District Code
019
Land Area
136.3 sq mi
Water Area
0.4 sq mi

Boundary

Boundary of Illinois State Senate District 19

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Will County88.13 sq mi64.7%10.5%
Cook County48.18 sq mi35.3%5.1%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Homer Glen village19.54 sq mi14.3%88.0%
Frankfort village12.16 sq mi8.9%77.9%
Tinley Park village10.10 sq mi7.4%62.4%
Matteson village9.02 sq mi6.6%97.1%
New Lenox village8.35 sq mi6.1%52.0%
Mokena village8.32 sq mi6.1%95.3%
Lockport city5.67 sq mi4.2%48.3%
Orland Park village5.36 sq mi3.9%24.4%
Country Club Hills city4.97 sq mi3.6%100.0%
Richton Park village3.46 sq mi2.5%78.9%
Hazel Crest village2.73 sq mi2.0%80.3%
Frankfort Square CDP2.50 sq mi1.8%100.0%
Joliet city2.34 sq mi1.7%3.5%
Olympia Fields village1.65 sq mi1.2%56.0%
Orland Hills village1.08 sq mi0.8%94.0%
Oak Forest city0.97 sq mi0.7%16.1%
Arbury Hills CDP0.18 sq mi0.1%100.0%
Lockport Heights CDP0.15 sq mi0.1%89.1%
University Park village0.11 sq mi0.1%1.0%
Marley CDP0.10 sq mi0.1%99.8%
Markham city0.09 sq mi0.1%1.8%
Homewood village0.09 sq mi0.1%1.7%
Lemont village0.02 sq mi<0.1%0.3%

Showing all 23 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 1133,32861.4%17.7%74.8%
IL District 259,09427.2%7.8%20.1%
IL District 624,75411.4%3.3%5.1%

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

Voters

Registered Voters
170,343
Active Voters
163,876 (96.2%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202633,749 (19.8%)<10 (—)3,461 (2.0%)
2023–2024116,193 (68.2%)18,447 (10.8%)11,399 (6.7%)
2021–202285,520 (50.2%)18,515 (10.9%)14,932 (8.8%)
2019–2020115,037 (67.5%)33,749 (19.8%)7,779 (4.6%)
2017–201885,578 (50.2%)26,608 (15.6%)11,597 (6.8%)
2015–201693,900 (55.1%)35,900 (21.1%)21,820 (12.8%)
2013–201461,989 (36.4%)9,192 (5.4%)11,145 (6.5%)
2011–201275,976 (44.6%)11,569 (6.8%)12,254 (7.2%)

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
216,125 (± 2,341)
Median Age
42.2
Median Household Income
$110,712 (± $3,080)
High School Graduate or Higher (age 25+)
95.6%
Bachelor's Degree or Higher (age 25+)
40.4%

Population by Age

GroupPeopleShare
Under 1849,34622.8%
18 to 64126,62058.6%
65 and over40,15918.6%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)16,6877.7%
White, not Hispanic132,83861.5%
Black, not Hispanic55,16825.5%
Asian, not Hispanic4,1451.9%
American Indian / Alaska Native, not Hispanic290.0%
Native Hawaiian / Pacific Islander, not Hispanic290.0%
Some other race, not Hispanic5230.2%
Two or more races, not Hispanic6,7063.1%

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
212,325
Citizen Voting Age Population (CVAP)
163,291

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic197,00792.8%
Hispanic15,3167.2%
White133,55562.9%
Black55,28326.0%
Asian3,8431.8%
American Indian / Alaska Native280.0%
Native Hawaiian / Pacific Islander300.0%
Two or More Races4250.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic153,55894.0%
Hispanic9,7296.0%
White105,37564.5%
Black43,61626.7%
Asian3,8812.4%
American Indian / Alaska Native6180.4%
Native Hawaiian / Pacific Islander180.0%
Two or More Races2450.2%

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