County · Illinois
Peoria County, Illinois
Peoria County, Illinois. Peoria County had 178,553 residents in 2025 by the Census Bureau's estimate, down 1.9% since 2020, a steeper fall than Illinois's (−0.8%). It holds 41 places (17 cities, villages and boroughs, 19 towns and townships and 5 census-designated) and 49 census tracts. GEOID 17143.
Peoria County is one of the 5 counties of the Peoria, IL metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
178,553
Census Bureau estimate (no margin published)
2020 Census count: 181,830 · ACS 2020-2024: 179,645
Median household income
$65,108
±$1,355 (90% margin)
Illinois: $83,390
Median home value
$158,500
±$2,588 (90% margin)
Illinois: $263,300
Median gross rent
$993
±$28 (90% margin)
Illinois: $1,274
How many people live in Peoria County, and is it growing?
The 2020 Census counted 181,830 residents in Peoria County. The Census Bureau estimates 178,553 for July 1, 2025, down 1.9% since 2020, a steeper fall than Illinois's (−0.8%). The 2020-2024 American Community Survey puts the population at 179,645 over 619 square miles of land.
| Measure | Peoria County | Illinois | Change since 2015-2019 |
|---|---|---|---|
| Total population | 179,645 | 12,694,798 | −3,125 |
| Households | 77,755±629 | 5,036,449 | +4,502 |
| Average household size | 2.24±0.02 | 2.46 | −0.18 |
| Housing units | 84,930±84 | 5,457,452 | +1,227 |
Peoria County's population since 2000
From 183,433 in 2000 to 178,553 in 2025: down 2.7%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Peoria County?
Peoria County holds 41 places: 17 cities, villages and boroughs (incorporated places), 19 towns and townships (county subdivisions with their own government) and 5 census-designated places. The largest is Peoria with 110,920 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Peoria | 113,150 | $59,410 |
|---|---|---|
| Peoria City Township | 97,823 | $52,321 |
| Limestone Township, Peoria County | 18,357 | $71,380 |
| Medina Township | 13,976 | $124,087 |
| Kickapoo Township | 8,401 | $112,391 |
| Chillicothe Township | 8,288 | $69,036 |
| Chillicothe | 6,128 | $66,132 |
| Bartonville | 5,945 | $72,821 |
| Richwoods Township | 5,919 | $60,099 |
| Peoria Heights | 5,908 | $60,099 |
| Radnor Township | 5,231 | $178,586 |
| West Peoria | 4,263 | $66,098 |
| Logan Township | 3,245 | $73,341 |
| Elmwood Township | 2,518 | $90,649 |
| Timber Township | 2,283 | $73,730 |
| Elmwood | 2,058 | $90,285 |
| Bellevue | 1,878 | $60,987 |
| Hollis Township | 1,829 | $87,069 |
| Lake CamelotGEOID 1740962 | 1,798 | $133,656 |
| Jubilee TownshipGEOID 1714338765 | 1,741 | $125,347 |
| Princeville | 1,636 | $76,250 |
| RomeGEOID 1765403 | 1,604 | $88,750 |
| Dunlap | 1,603 | $141,552 |
| Hallock TownshipGEOID 1714332304 | 1,588 | $151,125 |
| Princeville Township | 1,520 | $66,438 |
| Hanna City | 1,253 | $73,265 |
| Rosefield TownshipGEOID 1714365715 | 1,223 | $84,821 |
| Brimfield Township | 1,208 | $81,250 |
| Akron Township | 1,025 | $89,375 |
| Trivoli TownshipGEOID 1714376121 | 1,003 | $102,639 |
| Glasford | 866 | $77,500 |
| Brimfield | 778 | $70,000 |
| Norwood | 437 | $69,583 |
| Millbrook TownshipGEOID 1714349113 | 419 | $65,000 |
| TrivoliGEOID 1776108 | 385 | $67,407 |
| MossvilleGEOID 1750699 | 268 | not published |
| Kingston Mines | 266 | $51,875 |
| MapletonGEOID 1746643 | 261 | $67,813 |
| SmithvilleGEOID 1770278 | 157 | not published |
| Pekin | 31,731 | $60,790 |
| Farmington | 2,389 | $65,223 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Peoria County?
The median resident of Peoria County is 38.1 years old; 23.9% are under 18 and 18.3% are 65 or older. The largest group is non-Hispanic white residents at 66.1%, then non-Hispanic Black residents at 17.2%. 7.1% of residents were born outside the United States.
| Measure | Peoria County | Illinois | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.1±0.3 | 39.0 | +0.6 |
| Under 18 years | 23.9% | 21.8% | – |
| 65 years and over | 18.3% | 17.0% | – |
| Hispanic or Latino (any race) | 6.0% | 18.8% | +1.2 pts |
| White alone, not Hispanic | 66.1%±0.3 pts | 58.1% | −3.8 pts |
| Black or African American alone, not Hispanic | 17.2%±0.7 pts | 13.3% | no clear change |
| Asian alone, not Hispanic | 4.6%±0.1 pts | 5.9% | +0.5 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 5.5%±0.7 pts | 3.4% | – |
| Some other race alone, not Hispanic | 0.5%±0.2 pts | 0.4% | – |
| Born outside the United States | 7.1%±0.8 pts | 14.7% | +1.7 pts |
| Speak a language other than English at home (age 5+) | 8.9%±0.7 pts | 24.0% | – |
| Civilian veterans (age 18+) | 5.9%±0.5 pts | 4.8% | – |
| With a disability | 14.1%±0.6 pts | 12.1% | – |
| No health insurance coverage | 5.8%±0.6 pts | 6.9% | no clear change |
| High school graduate or higher (age 25+) | 93.4%±0.6 pts | 90.5% | – |
| Bachelor's degree or higher (age 25+) | 34.9%±1.0 pts | 37.8% | +4.3 pts |
| Graduate or professional degree (age 25+) | 13.3%±0.7 pts | 15.3% | – |
| Moved from another state in the past year | 2.0%±0.4 pts | 1.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Peoria County earn?
Half of Peoria County's 77,755 households earn less than $65,108 a year (±$1,355), against $83,390 in Illinois. In 2015-2019 the median was $68,724 in 2024 dollars, so it fell by $3,616 after inflation. 15.7% of residents live below the poverty line.
| Measure | Peoria County | Illinois | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $65,108±$1,355 | $83,390 | −$3,616 |
| Mean household income | $92,598±$2,413 | $115,638 | – |
| Per capita income | $40,155±$991 | $46,406 | no clear change |
| People below the poverty line | 15.7%±1.2 pts | 11.8% | no clear change |
| Children under 18 below the poverty line | 20.5%±3.0 pts | 15.1% | no clear change |
| Households receiving SNAP | 18.0%±0.9 pts | 13.8% | – |
| Households with a broadband subscription | 89.5%±0.9 pts | 90.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Peoria County?
Owners occupy 67.0% of Peoria County's occupied homes and renters 33.0%. The median owner-occupied home is valued at $158,500 by its owner (±$2,588). The median renter pays $993 a month including utilities, and 40.4% of renters pay 35% or more of their income on rent.
| Measure | Peoria County | Illinois | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $158,500±$2,588 | $263,300 | no clear change |
| Median gross rent | $993±$28 | $1,274 | no clear change |
| Renters paying 35% or more of income on rent | 40.4%±2.8 pts | 39.0% | no clear change |
| Median monthly owner costs, with a mortgage | $1,496±$33 | $1,987 | – |
| Owner-occupied homes | 67.0%±1.1 pts | 67.1% | +1.9 pts |
| Housing units | 84,930±84 | 5,457,452 | +1,227 |
| Homeowner vacancy rate | 1.4%±0.4 pts | 1.0% | – |
| Rental vacancy rate | 6.8%±1.4 pts | 5.0% | – |
| Single-family detached homes | 72.0%±1.1 pts | 58.2% | – |
| Mobile homes | 1.1%±0.3 pts | 2.3% | – |
| Built 2020 or later | 0.5%±0.1 pts | 0.7% | – |
| Built 1939 or earlier | 19.7%±1.2 pts | 20.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Peoria County building?
Builders took permits for 73 new housing units across Peoria County in 2025 (73 single-family), 0.4 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Peoria County get to work?
76.1% of Peoria County's workers drive alone and 11.4% work from home. The average trip to work takes 19.2 minutes. The unemployment rate in 2020-2024 averaged 6.2%.
| Measure | Peoria County | Illinois | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 62.2%±0.7 pts | 65.0% | – |
| Unemployment rate | 6.2%±0.9 pts | 5.8% | −1.3 pts |
| Drove alone to work | 76.1%±1.0 pts | 65.9% | – |
| Carpooled | 8.5%±0.9 pts | 7.8% | – |
| Public transportation | 1.2%±0.4 pts | 5.8% | – |
| Walked | 1.7%±0.3 pts | 2.8% | – |
| Worked from home | 11.4%±0.8 pts | 15.9% | +8.0 pts |
| Mean travel time to work | 19.2 min±0.5 | 27.8 min | +0.8 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Peoria County's census tracts?
Peoria County is divided into 49 census tracts. Among those with a reliable estimate, median household income runs from $26,857 (Tract 13) to $162,500 (Tract 39).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Peoria County compare with Illinois's other counties?
| Measure | Rank |
|---|---|
| Population | 12th of 102 |
| Growth 2020-2025 | 42nd of 102 |
| Residents per square mile | 12th of 102 |
| Median household income | 63rd of 102 |
| Median home value | 33rd of 102 |
| Median gross rent | 19th of 102 |
| Poverty rate | 20th of 102 |
| Bachelor's degree or higher | 14th of 102 |
| Median age | 94th of 102 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Peoria County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.