Peoria County, Illinois - wikipedia Peoria County, Illinois Peoria County, Illinois Courthouse Square in Peoria Seal Location in the U.S. state of Illinois Illinois 's location in the U.S. Founded 1825 Named for Peoria tribe Seat Peoria Largest city Peoria Area Total 631 sq mi ( 1,634 km ) Land 619 sq mi ( 1,603 km ) Water 11 sq mi ( 28 km ), 1.8 % Population ( 2010 ) 186,494 Density 301 / sq mi ( 116 / km ) Congressional districts 17th, 18th Time zone Central : UTC − 6 / − 5 Website www.co.peoria.il.us Peoria County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 186,494. Its county seat is Peoria. Peoria County is part of the Peoria, IL Metropolitan Statistical Area. Contents 1 History 2 Geography 2.1 Climate and weather 2.2 Adjacent counties 3 Transportation 3.1 Major highways 3.2 Defunct highways 3.3 Airports 4 Demographics 5 Points of interest 6 Communities 6.1 Cities 6.2 Villages 6.3 Census - designated places 6.4 Unincorporated communities 6.5 Townships 6.6 School districts 7 Notable residents 8 Politics 9 See also 10 References 11 External links History 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. Peoria County between 1827 and 1830. The creation of Tazewell County left Peoria with only a small tract of unorganized territory east of the Illinois River, whose border was not defined. In 1830, Warren County organized a government. In 1831, Peoria County 's present borders were established and Mercer County was attached to Warren. Geography According to the U.S. Census Bureau, the county has a total area of 631 square miles ( 1,630 km ), of which 619 square miles ( 1,600 km ) is land and 11 square miles ( 28 km ) ( 1.8 % ) is water. The county is drained by Spoon River, Kickapoo Creek, Elbow Creek, and Copperas Creek. Climate and Weather Peoria, Illinois Climate chart ( explanation ) J J J O 1.5 31 14 1.7 37 20 2.8 49 30 3.6 62 40 4.2 73 51 3.8 82 60 86 65 3.2 84 63 3.1 77 54 2.8 64 42 49 31 2.4 35 20 Average max. and min. temperatures in ° F Precipitation totals in inches Source : The Weather Channel Metric conversion J J J O 38 − 1 − 10 42 − 7 72 9 − 1 90 17 106 23 11 98 28 16 102 30 18 80 29 17 79 25 12 70 18 6 76 9 − 1 61 − 7 Average max. and min. temperatures in ° C Precipitation totals in mm 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. Adjacent counties Stark County - north Marshall County - northeast Woodford County - east Tazewell County - south Fulton County - southwest Knox County - northwest Transportation Major highways Interstate 74 in Illinois Interstate 474 U.S. Route 24 in Illinois U.S. Route 150 in Illinois Illinois Route 6 Illinois Route 8 Illinois Route 9 Illinois Route 29 Illinois Route 40 Illinois Route 78 Illinois Route 90 Illinois Route 91 Illinois Route 116 Illinois Route 336 ( Soon ) Defunct highways Illinois Route 174 Illinois Route 175 Airports 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 Demographics Historical population Census Pop. % ± 1840 6,153 -- 1850 17,547 185.2 % 1860 36,601 108.6 % 1870 47,540 29.9 % 1880 55,355 16.4 % 1890 70,378 27.1 % 1900 88,608 25.9 % 1910 100,255 13.1 % 1920 111,710 11.4 % 1930 141,344 26.5 % 1940 153,374 8.5 % 1950 174,347 13.7 % 1960 189,044 8.4 % 1970 195,318 3.3 % 1980 200,466 2.6 % 182,827 − 8.8 % 2000 183,433 0.3 % 186,494 1.7 % Est. 2016 185,006 − 0.8 % 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 / km ). There were 83,034 housing units at an average density of 134.1 per square mile ( 51.8 / km ). 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. Points of interest Glasford crater Jubilee College State Park See also : Peoria, Illinois § Points of interest Communities Cities Chillicothe Elmwood Peoria West Peoria Villages Bartonville Bellevue Brimfield Dunlap Glasford Hanna City Kingston Mines Mapleton Norwood Peoria Heights Princeville Census - designated places Lake Camelot Rome Unincorporated communities Alta Cramers Edelstein Edgewater Edwards El Vista Elmore Galena Knolls High Meadows Holmes Center Lake of the Woods Laura Lawn Ridge Mardell Manor Mossville North Hampton Oak Hill Orchard Mines Pottstown Renchville Rome Heights Smithville South Rome Southport Trivoli Tuscarora Vets Row Vonachen Knolls West Hallock Townships Akron Brimfield Chillicothe Elmwood Hallock Hollis Jubilee Kickapoo Limestone Logan Medina Millbrook Peoria City Princeville Radnor Richwoods Rosefield Timber Trivoli West Peoria School districts Further information : List of school districts in Illinois § Peoria County Notable residents See also : List of people from Peoria, Illinois 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 Politics Presidential Elections Results Year Republican Democratic Third Parties 2016 45.1 % 35,633 48.1 % 38,060 6.8 % 5,409 2012 46.9 % 36,774 51.3 % 40,209 1.8 % 1,428 2008 42.3 % 34,579 56.2 % 45,906 1.5 % 1,219 49.6 % 41,051 49.7 % 41,121 0.7 % 599 2000 47.4 % 36,398 50.3 % 38,604 2.4 % 1,810 41.8 % 30,990 50.5 % 37,383 7.7 % 5,729 37.8 % 30,718 46.9 % 38,099 15.4 % 12,511 51.4 % 37,605 48.1 % 35,253 0.5 % 372 1984 55.0 % 45,607 44.4 % 36,830 0.6 % 462 1980 57.3 % 47,815 33.9 % 28,276 8.9 % 7,419 1976 56.7 % 46,526 42.1 % 34,606 1.2 % 991 1972 64.5 % 50,324 34.9 % 27,264 0.6 % 444 1968 50.0 % 37,021 41.8 % 30,937 8.3 % 6,147 1964 41.3 % 33,327 58.7 % 47,360 0.0 % 0 1960 53.8 % 45,529 46.1 % 39,061 0.1 % 86 1956 62.7 % 50,888 37.2 % 30,145 0.1 % 108 1952 59.1 % 49,245 40.7 % 33,955 0.2 % 139 1948 52.8 % 35,018 46.8 % 31,026 0.5 % 308 1944 50.8 % 34,171 48.8 % 32,837 0.4 % 243 1940 45.2 % 34,911 54.4 % 42,009 0.4 % 301 1936 34.0 % 25,425 64.2 % 48,063 1.8 % 1,377 1932 39.5 % 25,166 59.0 % 37,605 1.5 % 945 1928 56.5 % 31,024 42.2 % 23,150 1.4 % 739 1924 58.6 % 25,243 14.7 % 6,343 26.7 % 11,526 1920 66.0 % 24,541 25.4 % 9,453 8.6 % 3,188 1916 48.4 % 18,615 48.7 % 18,718 3.0 % 1,145 1912 41.9 % 9,229 38.0 % 8,364 20.1 % 4,427 1908 52.5 % 10,828 43.1 % 8,898 4.4 % 909 1904 62.0 % 11,868 29.8 % 5,697 8.2 % 1,570 1900 51.8 % 10,700 45.7 % 9,433 2.5 % 514 1896 52.7 % 10,486 45.6 % 9,068 1.7 % 344 1892 45.6 % 7,266 50.6 % 8,053 3.8 % 605 See also National Register of Historic Places listings in Peoria County, Illinois References ^ Jump up to : `` State & County QuickFacts ''. United States Census Bureau. Archived from the original on July 16, 2011. Retrieved July 8, 2014. Jump up ^ `` Find a County ''. National Association of Counties. Retrieved 2011 - 06 - 07. ^ Jump up to : White, Jesse. Origin and Evolution of Illinois Counties. State of Illinois, March 2010. ( 1 ) ^ Jump up to : `` Population, Housing Units, Area, and Density : 2010 - County ''. United States Census Bureau. Retrieved 2015 - 07 - 12. Jump up ^ Ripley, George ; Dana, Charles A., eds. ( 1879 ). `` Peoria, a N. central county of Illinois ''. The American Cyclopædia. ^ Jump up to : `` Monthly Averages for Peoria, Illinois ''. The Weather Channel. Retrieved 2011 - 01 - 27. Jump up ^ `` Peoria County Public and Private Airports ''. www.tollfreeairline.com. Retrieved 17 April 2018. Jump up ^ `` Population and Housing Unit Estimates ''. Retrieved June 9, 2017. Jump up ^ `` U.S. Decennial Census ''. United States Census Bureau. Retrieved July 8, 2014. Jump up ^ `` Historical Census Browser ''. University of Virginia Library. Retrieved July 8, 2014. Jump up ^ `` Population of Counties by Decennial Census : 1900 to 1990 ''. United States Census Bureau. Retrieved July 8, 2014. Jump up ^ `` Census 2000 PHC - T - 4. Ranking Tables for Counties : 1990 and 2000 '' ( PDF ). United States Census Bureau. Retrieved July 8, 2014. ^ Jump up to : `` DP - 1 Profile of General Population and Housing Characteristics : 2010 Demographic Profile Data ''. United States Census Bureau. Retrieved 2015 - 07 - 12. Jump up ^ `` DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES -- 2006 - 2010 American Community Survey 5 - Year Estimates ''. United States Census Bureau. Retrieved 2015 - 07 - 12. Jump up ^ `` DP03 SELECTED ECONOMIC CHARACTERISTICS -- 2006 - 2010 American Community Survey 5 - Year Estimates ''. United States Census Bureau. Retrieved 2015 - 07 - 12. Jump up ^ Leip, David. `` Dave Leip 's Atlas of U.S. Presidential Elections ''. uselectionatlas.org. Retrieved 17 April 2018. External links Peoria Co., IL Saving Graves Peoria Laws Places adjacent to Peoria County, Illinois Knox County Stark County Marshall County Peoria County, Illinois Woodford County Fulton County Tazewell County Municipalities and communities of Peoria County, Illinois, United States County seat : Peoria Cities Chillicothe Elmwood Pekin ‡ Peoria West Peoria Villages Bartonville Bellevue Brimfield Dunlap Glasford Hanna City Kingston Mines Mapleton Norwood Peoria Heights ‡ Princeville Townships Akron Brimfield Chillicothe Elmwood Hallock Hollis Jubilee Kickapoo Limestone Logan Medina Millbrook Peoria City Twp. Princeville Radnor Richwoods Rosefield Timber Trivoli West Peoria CDPs Lake Camelot Rome Other unincorporated communities Akron Alta Cramers Edelstein Eden Edgewater Edwards El Vista Elmore Galena Knolls High Meadows Holmes Center Kickapoo Lake of the Woods Laura Lawn Ridge Mardell Manor Mossville North Hampton Oak Hill Orchard Mines Pottstown Renchville Rome Heights Smithville South Rome Southport Trivoli Tuscarora West Hallock Footnotes ‡ This populated place also has portions in an adjacent county or counties State of Illinois Springfield ( capital ) Topics Index Buildings and structures Census areas Communications Culture Delegations Earthquakes Economy Education Energy Environment Geography Government Health History Languages Law Music People Politics Portal Protected areas Society Sports Tourism Transportation Windmills Seal of Illinois Regions American Bottom Central Illinois Champaign -- Urbana metropolitan area Chicago metropolitan area Collar counties Corn Belt Driftless Area Forgottonia Fox Valley Illinois - Indiana - Kentucky tri-state area Metro East Metro Lakeland Mississippi Alluvial Plain North Shore Northern Illinois Northwestern Illinois Peoria metropolitan area Quad Cities River Bend Rockford metropolitan area Southern Illinois Streatorland Wabash Valley Cities, towns and villages Alton / Granite City / Edwardsville Arlington Heights / Palatine Aurora / Naperville / Oswego / Plainfield Bartlett / Hanover Park / Streamwood Belleville / East St. Louis / Collinsville / O'Fallon Berwyn / Cicero Bloomington / Normal Bolingbrook / Romeoville Buffalo Grove / Wheeling Calumet City Canton Carbondale Carol Stream / Glendale Heights Centralia Champaign / Urbana Charleston / Mattoon Chicago Chicago Heights Crystal Lake / Algonquin Danville Decatur DeKalb / Sycamore Des Plaines / Mount Prospect / Park Ridge Dixon Downers Grove / Woodridge Effingham Elgin / Carpentersville Elmhurst / Lombard / Addison Evanston / Skokie Freeport Galesburg Glenview / Northbrook Harrisburg Jacksonville Joliet Kankakee / Bradley / Bourbonnais Lincoln Macomb Marion / Herrin Moline / East Moline / Rock Island Mount Vernon Mundelein Oak Lawn Oak Park Orland Park / Tinley Park Ottawa / Streator / LaSalle / Peru Peoria / Pekin / East Peoria / Morton / Washington Pontiac Quincy Rochelle Rockford / Belvidere / Machesney Park / Loves Park St. Charles Schaumburg / Hoffman Estates / Elk Grove Village Springfield Sterling / Rock Falls Taylorville Waukegan / North Chicago / Gurnee Wheaton Counties Adams Alexander Bond Boone Brown Bureau Calhoun Carroll Cass Champaign Christian Clark Clay Clinton Coles Cook Crawford Cumberland DeKalb DeWitt Douglas DuPage Edgar Edwards Effingham Fayette Ford Franklin Fulton Gallatin Greene Grundy Hamilton Hancock Hardin Henderson Henry Iroquois Jackson Jasper Jefferson Jersey Jo Daviess Johnson Kane Kankakee Kendall Knox LaSalle Lake Lawrence Lee Livingston Logan Macon Macoupin Madison Marion Marshall Mason Massac McDonough McHenry McLean Menard Mercer Monroe Montgomery Morgan Moultrie Ogle Peoria Perry Piatt Pike Pope Pulaski Putnam Randolph Richland Rock Island Saline Sangamon Schuyler Scott Shelby St. Clair Stark Stephenson Tazewell Union Vermilion Wabash Warren Washington Wayne White Whiteside Will Williamson Winnebago Woodford Coordinates : 40 ° 47 ′ N 89 ° 46 ′ W ﻿ / ﻿ 40.79 ° N 89.76 ° W ﻿ / 40.79 ; - 89.76 Retrieved from `` https://en.wikipedia.org/w/index.php?title=Peoria_County,_Illinois&oldid=836820973 '' Categories : Illinois counties 1825 establishments in Illinois Populated places established in 1825 Peoria County, Illinois Peoria metropolitan area Hidden categories : Wikipedia articles incorporating a citation from The American Cyclopaedia Wikipedia articles incorporating a citation from The American Cyclopaedia with a Wikisource reference Articles to be expanded from August 2008 All articles to be expanded Articles using small message boxes Pages using div col with deprecated parameters Coordinates on Wikidata Talk Contents About Wikipedia Languages Bân - lâm - gú Български Boarisch Cebuano Čeština Deutsch Español Euskara فارسی Français 한국어 Հայերեն বিষ্ণুপ্রিয়া মণিপুরী Italiano Latina Magyar Mìng - dĕ̤ng - ngṳ̄ Nederlands 日本 語 Norsk پنجابی Plattdüütsch Polski Português Română Русский Shqip Српски / srpski Srpskohrvatski / српскохрватски Svenska Türkçe Українська اردو Tiếng Việt Winaray 中文 28 more Edit links This page was last edited on 17 April 2018, at 01 : 43. 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Question: what is the county seat of peoria county
Answer: Peoria