12th most populous of 102
With 179,630 residents in 2024, Peoria County ranks 12th by population among Illinois's 102 counties and is home to 1.4% of the state's residents.
Peoria County is home to 179,630 people (2024 estimate) on 619 square miles of land. This page brings together official U.S. Census Bureau population estimates since 2000, the components of change—births, deaths and migration—American Community Survey indicators on income, housing, poverty and education, BEA economic accounts and BLS unemployment.
Key indicators
Population
179,630
July 1, 2024 estimate
2020 Census base
182,021
April 1, 2020
Change since 2020
−1.3%
2020–2024
Land area
619 mi²
1,602 km²
Population density
290.3 /mi²
2024 estimate ÷ land area
Births
2,057
Year to July 1, 2024
Deaths
2,013
Year to July 1, 2024
Natural change
+44
Births minus deaths, 2024
Net migration
+846
Domestic + international, 2024
Per capita personal income
$64,705
BEA, 2024
Gross domestic product
$17.0 billion
BEA, current dollars, 2024
Median household income
$65,108
ACS 2020–2024 5-year
Poverty rate
15.7%
ACS 2020–2024 5-year
Bachelor’s degree or higher
34.9%
Age 25+, ACS 2020–2024 5-year
Foreign-born residents
7.1%
ACS 2020–2024 5-year
Median home value
$158,500
ACS 2020–2024 5-year
Unemployment rate
5.4%
BLS annual average, 2024
Historical data
Pick an indicator to see its long-run evolution.
Population
2000–2024179,630▼ 2%
U.S. Census Bureau: intercensal estimates 2000–2009, Vintage 2020 (2010–2019) and Vintage 2024 (2020–2024), July 1.
Data summary
| Indicator | Value | Year and source |
|---|---|---|
| Population estimate | 179,630 | 2024 · U.S. Census Bureau |
| Population, 2010 Census | 186,494 | 2010 · U.S. Census Bureau |
| Population, 2000 | 183,186 | July 1, 2000 · Census intercensal |
| Change since 2000 | −1.9% | 2000–2024 · Census |
| International migration | +1,546 | 2024 · Census Vintage 2024 |
| Domestic migration | −700 | 2024 · Census Vintage 2024 |
| Birth rate | 11.5 per 1,000 | 2024 · calculated |
| Death rate | 11.2 per 1,000 | 2024 · calculated |
| Population rank in Illinois | 12th of 102 | 2024 · calculated |
| Per capita personal income | $64,705 | BEA, 2024 · official |
| Gross domestic product | $17.0 billion | BEA, current dollars, 2024 · official |
| Median household income | $65,108 | ACS 2020–2024 5-year · official |
| Poverty rate | 15.7% | ACS 2020–2024 5-year · official |
| Bachelor’s degree or higher | 34.9% | Age 25+, ACS 2020–2024 5-year · official |
| Foreign-born residents | 7.1% | ACS 2020–2024 5-year · official |
| Median home value | $158,500 | ACS 2020–2024 5-year · official |
| Median gross rent | $993/month | ACS 2020–2024 5-year · official |
| Median age | 38.1 years | ACS 2020–2024 5-year · official |
| Households | 77,755 | ACS 2020–2024 5-year · official |
| Owner-occupied homes | 67.0% | ACS 2020–2024 5-year · official |
Peoria County in context
Comparable indicators for Peoria County, Illinois and the United States.
| Indicator | County | Illinois | U.S. | Reference |
|---|---|---|---|---|
| Population change 2020–2024 | −1.3% | −0.9% | +2.6% | Census Vintage 2024 |
| Birth rate (per 1,000) | 11.5 | 9.9 | 10.6 | 2024 |
| Death rate (per 1,000) | 11.2 | 9.0 | 9.1 | 2024 |
| Net migration rate (per 1,000) | 4.7 | 4.5 | 8.2 | 2024 |
| Population density (/mi²) | 290.3 | 229.0 | 96.3 | 2024 |
| Per capita personal income | $64,705 | $74,522 | $73,204 | BEA, 2024 |
| Median household income | $65,108 | $83,390 | $80,734 | ACS 2020–2024 5-year |
| Poverty rate | 15.7% | 11.8% | 12.5% | ACS 2020–2024 5-year |
| Bachelor’s degree or higher | 34.9% | 37.8% | 35.7% | Age 25+, ACS 2020–2024 5-year |
| Foreign-born residents | 7.1% | 14.7% | 14.1% | ACS 2020–2024 5-year |
| Median home value | $158,500 | $263,300 | $332,700 | ACS 2020–2024 5-year |
| Median gross rent | $993/month | $1,274/month | $1,413/month | ACS 2020–2024 5-year |
| Median age | 38.1 years | 39.0 years | 38.9 years | ACS 2020–2024 5-year |
| Owner-occupied homes | 67.0% | 67.1% | 65.2% | ACS 2020–2024 5-year |
Cities & towns
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Did you know? Peoria County
A quarter century of change
Its population went from 183,186 in 2000 to 179,630 in 2024, a change of −1.9%, compared with +2.2% for Illinois as a whole.
Births and deaths
In the year to July 2024 the county recorded 2,057 births and 2,013 deaths, so births outnumbered deaths by 44.
Peak population in 2013
Annual Census estimates since 2000 put the county's highest population at 188,688 in 2013. The 2024 figure is 9,058 lower.
12th in density
Peoria County has about 290.3 residents per square mile of land, ranking 12th of 102 counties; Illinois averages 229.0.
Household income rank
With a median household income of $65,108 (ACS 2020–2024 5-year), the county ranks 63rd of 102 Illinois counties; the state median is $83,390.
Size of the economy
Its economy produced $17.0 billion of GDP in 2024 (BEA), 7th largest among 102 Illinois counties.
Latest economic growth
Real GDP grew 1.9% in 2024, adjusted for inflation (BEA, chained 2017 dollars).
Sources and methodology
- U.S. Census Bureau — County population totals and components, Vintage 2024
- U.S. Census Bureau — County estimates 2010–2020
- U.S. Census Bureau — Intercensal estimates 2000–2010
- U.S. Census Bureau — Gazetteer files (land area)
- U.S. Census Bureau — American Community Survey 2020–2024 5-year
- U.S. Bureau of Economic Analysis — Regional economic accounts
- U.S. Bureau of Labor Statistics — LAUS