Illinois Congressional District 15

Congressional District Profile

Overview

District ID
IL-15
State
Illinois
District Number
15
Total Candidates
57
Election Cycles
2026, 2024, 2022, 2020, 2018, 2016, 2014, 2012, 2010, 2008, 2006, 2004, 2002, 2000, 1998, 1996, 1994, 1992, 1990, 1988, 1986, 1984, 1982, 1980

View office details for U.S. Representative - Illinois District 15

Voters

Registered Voters
539,663
Active Voters
519,955 (96.3%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–2026101,649 (18.8%)151 (0.0%)4,296 (0.8%)
2023–2024381,338 (70.7%)19,260 (3.6%)73,217 (13.6%)
2021–2022298,421 (55.3%)23,416 (4.3%)109,327 (20.3%)
2019–2020352,045 (65.2%)45,765 (8.5%)72,887 (13.5%)
2017–2018273,845 (50.7%)35,150 (6.5%)73,739 (13.7%)
2015–2016298,009 (55.2%)48,913 (9.1%)119,196 (22.1%)
2013–2014212,794 (39.4%)22,042 (4.1%)65,548 (12.1%)
2011–2012244,920 (45.4%)19,134 (3.5%)62,453 (11.6%)

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 Citizen Population
739,609
Citizen Voting Age Population (CVAP)
578,981

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic719,63697.3%
Hispanic19,9702.7%
White674,53391.2%
Black20,9352.8%
Asian4,6680.6%
American Indian / Alaska Native7320.1%
Native Hawaiian / Pacific Islander1820.0%
Two or More Races1,3470.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic566,44097.8%
Hispanic12,5372.2%
White534,89992.4%
Black19,4633.4%
Asian4,8620.8%
American Indian / Alaska Native6,3891.1%
Native Hawaiian / Pacific Islander1700.0%
Two or More Races8960.2%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation.

Candidates