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County in Illinois

Peoria County

About 179,600 people, median household income $65,100.

District lines run through Peoria County, so who represents you here depends on where you live. Search your address to see yours.

Who lives in Peoria County

Census survey estimates for 2020 to 2024, rounded.

People

Population
179,600
Median age
38.1 years
Under 18
24%
65 and over
18%
Veterans, of adults
6%
Speak another language at home
9%

Race and ethnicity

Hispanic or Latino, of any race
6%
White, not Hispanic
66%
Black, not Hispanic
17%
Asian, not Hispanic
5%

Income and housing

Median household income
$65,100
Below the poverty line
16%
Bachelor's or higher, adults 25+
35%
Owner-occupied homes
67%
Median home value
$159,000

2024 vote for president

Kamala Harris, Democrat
51.3%
Donald Trump, Republican
46.6%
Other candidates
2.1%

Votes counted, by precinct. Source: MIT Election Data and Science Lab, precinct returns (public domain).

Represent all of Peoria County

Peoria County's districts (12)

U.S. House (2)

Illinois Senate (4)

Illinois House (6)

Towns (22)

Cities, villages and unincorporated communities, with the number of people in the county’s part of each at the 2020 Census.

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024; towns and counties from the 2020 Census, Demographic and Housing Characteristics. Figures rounded by us. Retrieved 2026-10-19. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.