Peoria County, Illinois

Peoria County, Illinois, had an estimated population of 178,553 in 2025 across 1,602 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Illinois's counties and nationally.

Population: 178,553; 2025 estimate
Area: 1,602 km²
Density: 111; per km²
Median income: $65,108; household, ACS 2024
Median age: 38.1; years, ACS 2024

How Illinois's counties spread

Amenities & Infrastructure

Indicator	Value	In Illinois	In the US
Households with Broadband2024	89.5%	25 / 102	945 / 3,144
Median Gross Rent2024	$993	19 / 102	1,013 / 3,137
Median Home Value2024	$158,500	33 / 102	2,056 / 3,139
Owner-Occupied Homes2024	67.0%	94 / 102	2,504 / 3,144
Vacant Homes2024	8.4%	74 / 102	2,453 / 3,144

Demography

Indicator	Value	In Illinois	In the US
Aged 65 and Over2024	18.3%	85 / 102	2,074 / 3,144
American Indian & Alaska Native2024	0.1%	18 / 102	1,566 / 3,144
Asian, non-Hispanic2024	4.6%	7 / 102	210 / 3,144
Average Household Size2024people	2.2	84 / 102	2,654 / 3,144
Black, non-Hispanic2024	17.2%	6 / 102	527 / 3,144
Foreign-Born2024	7.1%	14 / 102	646 / 3,144
Hispanic or Latino2024	6.0%	29 / 102	1,370 / 3,144
Median Age2024years	38.1	94 / 102	2,476 / 3,144
Sex Ratio2024per 1,000 males	1,051	8 / 102	482 / 3,144
Speak a Language Other Than English2024	8.9%	20 / 102	1,029 / 3,144
Under 182024	23.9%	6 / 102	718 / 3,144
Veterans2024	5.9%	84 / 102	2,375 / 3,144
White, non-Hispanic2024	66.1%	91 / 102	2,197 / 3,144

Economy

Indicator	Value	In Illinois	In the US
Below Poverty Line2024	15.7%	20 / 102	1,066 / 3,144
Households on SNAP2024	18.0%	19 / 102	571 / 3,144
Income Inequality2024index	0.485	7 / 102	437 / 3,144
Median Household Income2024	$65,108	63 / 102	1,626 / 3,143
Per Capita Income2024	$40,155	21 / 102	806 / 3,144
Unemployment Rate2024	6.2%	15 / 102	571 / 3,144

Education

Indicator	Value	In Illinois	In the US
Bachelor's Degree or Higher2024	34.9%	14 / 102	459 / 3,144
High School or Higher2024	93.4%	24 / 102	656 / 3,144

Health Coverage

Indicator	Value	In Illinois	In the US
No Health Insurance2024	5.8%	27 / 102	2,200 / 3,144
With a Disability2024	14.1%	72 / 102	2,140 / 3,144

Population & Density

Indicator	Value	In Illinois	In the US
Population2025	178,553	12 / 102	391 / 3,144
Population Density2025/km²	111	12 / 102	450 / 3,144

Work & Commute

Indicator	Value	In Illinois	In the US
Commute by Public Transit2024	1.2%	13 / 102	332 / 3,144
Households with No Vehicle2024	8.1%	22 / 102	513 / 3,144
Mean Commute Time2024minutes	19.2	91 / 102	2,607 / 3,143
Work from Home2024	11.4%	20 / 102	895 / 3,144

Other counties of Illinois

Compare Peoria County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.