Illinois Congressional District 10

Voters

Registered Voters: 537,597
Active Voters: 492,107 (91.5%)

Party Registration

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

Turnout by Cycle

Cycle	General	Democratic Primary	Republican Primary
2025–2026	84,478 (15.7%)	3,291 (0.6%)	<10 (—)
2023–2024	335,318 (62.4%)	40,684 (7.6%)	23,635 (4.4%)
2021–2022	245,005 (45.6%)	54,824 (10.2%)	37,591 (7.0%)
2019–2020	327,167 (60.9%)	90,412 (16.8%)	21,858 (4.1%)
2017–2018	244,075 (45.4%)	62,486 (11.6%)	32,949 (6.1%)
2015–2016	268,660 (50.0%)	88,452 (16.5%)	70,503 (13.1%)
2013–2014	169,675 (31.6%)	12,859 (2.4%)	33,968 (6.3%)
2011–2012	212,768 (39.6%)	24,072 (4.5%)	40,718 (7.6%)

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: 680,687
Citizen Voting Age Population (CVAP): 512,420

Citizen Population by Race/Ethnicity

Group	Citizens	Share
Non-Hispanic	537,882	79.0%
Hispanic	142,803	21.0%
White	426,553	62.7%
Black	45,949	6.8%
Asian	45,793	6.7%
American Indian / Alaska Native	659	0.1%
Native Hawaiian / Pacific Islander	192	0.0%
Two or More Races	2,598	0.4%

Citizen Voting Age Population by Race/Ethnicity

Group	CVAP	Share
Non-Hispanic	426,613	83.3%
Hispanic	85,805	16.7%
White	347,114	67.7%
Black	37,684	7.4%
Asian	37,907	7.4%
American Indian / Alaska Native	2,656	0.5%
Native Hawaiian / Pacific Islander	183	0.0%
Two or More Races	1,589	0.3%

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