|Peoria County, Illinois|
Courthouse Square in Peoria
Location in the U.S. state of Illinois
Illinois's location in the U.S.
|Named for||Peoria tribe|
|• Total||631 sq mi (1,634 km2)|
|• Land||619 sq mi (1,603 km2)|
|• Water||11 sq mi (28 km2), 1.8%|
|• ( 2010)||186,494|
|• Density||301/sq mi (116/km2)|
|Congressional districts||17th, 18th|
|Time zone||Central: UTC−6/ −5|
Peoria County is part of the Peoria, IL Metropolitan Statistical Area.
- 1 History
- 2 Geography
- 3 Transportation
- 4 Demographics
- 5 Points of interest
- 6 Communities
- 7 Notable residents
- 8 Politics
- 9 See also
- 10 References
- 11 External links
This section needs expansion. You can help by adding to it. (August 2008)
Peoria County was formed in 1825 out of Fulton County. It was named for the Peoria, an Illiniwek people who lived there. It included most of the western valley of the Illinois River up to the Chicago river portage.
Peoria County for the first year after its creation, including a large tract of unorganized territory temporarily attached to it. 
Peoria County between 1826 and 1827. The newly created Mercer and Warren Counties were temporarily attached to Peoria until county governments could be organized. 
According to the U.S. Census Bureau, the county has a total area of 631 square miles (1,630 km2), of which 619 square miles (1,600 km2) is land and 11 square miles (28 km2) (1.8%) is water.  The county is drained by Spoon River, Kickapoo Creek, Elbow Creek, and Copperas Creek. 
|Climate chart ( explanation)|
In recent years, average temperatures in the county seat of Peoria have ranged from a low of 14 °F (−10 °C) in January to a high of 86 °F (30 °C) in July, although a record low of −27 °F (−33 °C) was recorded in January 1884 and a record high of 113 °F (45 °C) was recorded in July 1936. Average monthly precipitation ranged from 1.50 inches (38 mm) in January to 4.17 inches (106 mm) in May. 
- Stark County - north
- Marshall County - northeast
- Woodford County - east
- Tazewell County - south
- Fulton County - southwest
- Knox County - northwest
The following public-use airports are located in the county: 
- General Wayne A. Downing Peoria International Airport (PIA), formerly Greater Peoria Regional Airport - Peoria, Illinois
- Mount Hawley Auxiliary Airport (3MY) - Peoria, Illinois
|U.S. Decennial Census
1790-1960  1900-1990 
1990-2000  2010-2013 
As of the 2010 United States Census, there were 186,494 people, 75,793 households, and 47,248 families residing in the county.  The population density was 301.2 inhabitants per square mile (116.3/km2). There were 83,034 housing units at an average density of 134.1 per square mile (51.8/km2).  The racial makeup of the county was 74.4% white, 17.7% black or African American, 3.1% Asian, 0.3% American Indian, 1.6% from other races, and 2.8% from two or more races. Those of Hispanic or Latino origin made up 3.8% of the population.  In terms of ancestry, 28.3% were German, 14.8% were Irish, 10.4% were English, and 5.5% were American. 
Of the 75,793 households, 30.5% had children under the age of 18 living with them, 44.1% were married couples living together, 14.1% had a female householder with no husband present, 37.7% were non-families, and 31.0% of all households were made up of individuals. The average household size was 2.39 and the average family size was 3.00. The median age was 36.8 years. 
The median income for a household in the county was $49,747 and the median income for a family was $63,163. Males had a median income of $51,246 versus $32,881 for females. The per capita income for the county was $28,157. About 10.3% of families and 14.5% of the population were below the poverty line, including 21.8% of those under age 18 and 7.8% of those age 65 or over. 
- El Vista
- Galena Knolls
- High Meadows
- Holmes Center
- Lake of the Woods
- Lawn Ridge
- Mardell Manor
- North Hampton
- Oak Hill
- Orchard Mines
- Rome Heights
- South Rome
- Vets Row
- Vonachen Knolls
- West Hallock
People from Peoria County other than in the city of Peoria:
- Chris Brackett, host of Arrow Affliction on The Sportsman Channel
- Mike Dunne, pitcher for several Major League Baseball teams
- Sam Kinison, Preacher, Actor, Comedian; raised in East Peoria
- Bill Krieg, Major League Baseball player
- Lance (Henry) LeGault, TV and movie actor: Colonel Roderick Decker on The A-Team
- Zach McAllister, Major League Baseball player: Cleveland Indians pitcher
- Johnston McCulley, pulp fiction author: creator of Zorro
- Richard Pryor, Actor, Comedian
- David Ogden Stiers, actor, Major Charles Emerson Winchester III on M*A*S*H
- Josh Taylor, TV actor: Chris Kostichek on the soap opera Days of Our Lives
- Jim Thome, first baseman for several Major League Baseball teams
- "State & County QuickFacts". United States Census Bureau. Archived from the original on July 16, 2011. Retrieved July 8, 2014.
- "Peoria County, Illinois".
- White, Jesse. Origin and Evolution of Illinois Counties. State of Illinois, March 2010. 
- "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Retrieved 2015-07-12.
- Ripley, George; Dana, Charles A., eds. (1879). " Peoria, a N. central county of Illinois". The American Cyclopædia.
- "Monthly Averages for Peoria, Illinois". The Weather Channel. Retrieved 2011-01-27.
- "Peoria County Public and Private Airports". www.tollfreeairline.com. Retrieved 17 April 2018.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Retrieved July 8, 2014.
- "Historical Census Browser". University of Virginia Library. Retrieved July 8, 2014.
- "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 8, 2014.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 8, 2014.
- "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Retrieved 2015-07-12.
- "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Retrieved 2015-07-12.
- "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Retrieved 2015-07-12.
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 17 April 2018.