Illinois Congressional District 11

Voters

Registered Voters: 531,600
Active Voters: 491,284 (92.4%)

Party Registration

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

Turnout by Cycle

Cycle	General	Democratic Primary	Republican Primary
2025–2026	103,169 (19.4%)	6,736 (1.3%)	1,800 (0.3%)
2023–2024	368,863 (69.4%)	46,066 (8.7%)	38,125 (7.2%)
2021–2022	265,749 (50.0%)	45,331 (8.5%)	53,464 (10.1%)
2019–2020	343,212 (64.6%)	85,314 (16.0%)	35,703 (6.7%)
2017–2018	252,913 (47.6%)	54,637 (10.3%)	45,818 (8.6%)
2015–2016	266,737 (50.2%)	73,910 (13.9%)	79,976 (15.0%)
2013–2014	164,095 (30.9%)	8,738 (1.6%)	45,077 (8.5%)
2011–2012	204,180 (38.4%)	12,985 (2.4%)	45,670 (8.6%)

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.

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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: 695,827
Citizen Voting Age Population (CVAP): 523,749

Citizen Population by Race/Ethnicity

Group	Citizens	Share
Non-Hispanic	578,369	83.1%
Hispanic	117,461	16.9%
White	470,616	67.6%
Black	42,830	6.2%
Asian	48,215	6.9%
American Indian / Alaska Native	366	0.1%
Native Hawaiian / Pacific Islander	130	0.0%
Two or More Races	1,638	0.2%

Citizen Voting Age Population by Race/Ethnicity

Group	CVAP	Share
Non-Hispanic	451,425	86.2%
Hispanic	72,327	13.8%
White	376,929	72.0%
Black	34,401	6.6%
Asian	37,269	7.1%
American Indian / Alaska Native	2,223	0.4%
Native Hawaiian / Pacific Islander	74	0.0%
Two or More Races	881	0.2%

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