Illinois (/ˌɪləˈnɔɪ/ (listen) IL-ə-NOY) is a state in the Midwestern and Great Lakes regions of the United States. It has the fifth largest gross domestic product (GDP),
the sixth largest population, and the 25th largest land area of all U.S. states. Illinois has been noted as a microcosm of the entire United States. With Chicago in northeastern Illinois, small industrial cities and immense agricultural productivity in the north and center of the state, and natural resources such as coal, timber, and petroleum in the south, Illinois has a diverse economic base, and is a major transportation hub. Chicagoland, Chicago’s metropolitan area, encompasses over 65% of the state’s population. The Port of Chicago connects the state to international ports via two main routes: from the Great Lakes, via the Saint Lawrence Seaway, to the Atlantic Ocean and from the Great Lakes to the Mississippi River, via the Illinois Waterway to the Illinois River. The Mississippi River, the Ohio River, and the Wabash River form parts of the boundaries of Illinois. For decades, Chicago’s O’Hare International Airport has been ranked as one of the world’s busiest airports. Illinois has long had a reputation as a bellwether both in social and cultural terms and, through the 1980s, in politics.
Illinois is located in the Midwest Region of the United States and is one of the eight states and Canadian province in the bi-national Great Lakes region of North America.
Racial Makeup of Illinois (2017)
Racial/Ethnic Makeup of Illinois treating Hispanics as a Separate Category (2017)
Racial Makeup of Hispanics in Illinois (2017)
The United States Census Bureau estimates that the population of Illinois was 12,741,080 in 2018, moving from the fifth-largest state to the sixth-largest state (losing out to Pennsylvania). Illinois’s population declined by 60,943 people from July 2017 to July 2018, making it the worst decline of any state in the U.S. in raw terms. Illinois is the most populous state in the Midwest region. Chicago, the third-most populous city in the United States, is the center of the Chicago metropolitan area or Chicagoland, as this area is nicknamed, comprises only 9% of the land area of the state, but contains 65% of the state’s residents.
According to the 2010 Census, the racial composition of the state was:
In the same year 15.8% of the total population was of Hispanic or Latino origin (they may be of any race).
The state’s most populous ethnic group, non-Hispanic white, has declined from 83.5% in 1970 to 63.3% in 2011. As of 2011, 49.4% of Illinois’s population younger than age 1 were minorities (Note: Children born to white Hispanics are counted as minority group).
At the 2007 estimates from the U.S. Census Bureau, there were 1,768,518 foreign-born inhabitants of the state or 13.8% of the population, with 48.4% from Latin America, 24.6% from Asia, 22.8% from Europe, 2.9% from Africa, 1.2% from Canada, and 0.2% from Oceania. Of the foreign-born population, 43.7% were naturalized U.S. citizens, and 56.3% were not U.S. citizens. In 2007, 6.9% of Illinois’s population was reported as being under age 5, 24.9% under age 18 and 12.1% were age 65 and over. Females made up approximately 50.7% of the population.
According to the 2007 estimates, 21.1% of the population had German ancestry, 13.3% had Irish ancestry, 8% had British ancestry, 7.9% had Polish ancestry, 6.4% had Italian ancestry, 4.6% listed themselves as American, 2.4% had Swedish ancestry, 2.2% had French ancestry, other than Basque, 1.6% had Dutch ancestry, and 1.4% had Norwegian ancestry. Illinois also has large numbers of African Americans and Latinos (mostly Mexicans and Puerto Ricans).
Chicago, along the shores of Lake Michigan, is the nation’s third largest city. In 2000, 23.3% of Illinois’s population lived in the city of Chicago, 43.3% in Cook County, and 65.6% in the counties of the Chicago metropolitan area: Will, DuPage, Kane, Lake, and McHenry counties, as well as Cook County. The remaining population lives in the smaller cities and rural areas that dot the state’s plains. As of 2000, the state’s center of population was at 41°16′42″N 88°22′49″W / 41.278216°N 88.380238°W / 41.278216; -88.380238, located in Grundy County, northeast of the village of Mazon.
Note: Births in table don’t add up, because Hispanics are counted both by their ethnicity and by their race, giving a higher overall number.
Chicago is the largest city in the state and the third-most populous city in the United States, with its 2010 population of 2,695,598. The U.S. Census Bureau currently lists seven other cities with populations of over 100,000 within Illinois. Based upon the Census Bureau’s official 2010 population: Aurora, a Chicago satellite town that eclipsed Rockford for the title of second-most populous city in Illinois; its 2010 population was 197,899. Rockford, at 152,871, is the third-largest city in the state, and is the largest city in the state not located within the Chicago suburbs. Joliet, located in metropolitan Chicago, is the fourth-largest city in the state, with a population of 147,433. Naperville, a suburb of Chicago, is fifth with 141,853. Naperville and Aurora share a boundary along Illinois Route 59. Springfield, the state’s capital, comes in as sixth-most populous with 117,352 residents. Peoria, which decades ago was the second-most populous city in the state, is seventh with 115,007. The eighth-largest and final city in the 100,000 club is Elgin, a northwest suburb of Chicago, with a 2010 population of 108,188.
The most populated city in the state south of Springfield is Belleville, with 44,478 people at the 2010 census. It is located in the Illinois portion of Greater St. Louis (often called the Metro-East area), which has a rapidly growing population of over 700,000 people.
Other major urban areas include the Champaign-Urbana Metropolitan Area, which has a combined population of almost 230,000 people, the Illinois portion of the Quad Cities area with about 215,000 people, and the Bloomington-Normal area with a combined population of over 165,000.
The official language of Illinois is English, although between 1923 and 1969, state law gave official status to “the American language”. Nearly 80% of people in Illinois speak English natively, and most of the rest speak it fluently as a second language. A number of dialects of American English are spoken, ranging from Inland Northern American English and African-American English around Chicago, to Midland American English in Central Illinois, to Southern American English in the far south.
Over 20% of Illinoians speak a language other than English at home, of which Spanish is by far the most widespread, at more than 12% of the total population. A sizeable number of Polish speakers is present in the Chicago Metropolitan Area.
Roman Catholics constitute the single largest religious denomination in Illinois; they are heavily concentrated in and around Chicago, and account for nearly 30% of the state’s population. However, taken together as a group, the various Protestant denominations comprise a greater percentage of the state’s population than do Catholics. In 2010 Catholics in Illinois numbered 3,648,907. The largest Protestant denominations were the United Methodist Church with 314,461, and the Southern Baptist Convention, with 283,519 members. Illinois has one of the largest concentrations of Missouri Synod Lutherans in the United States.
Illinois played an important role in the early Latter Day Saint movement, with Nauvoo, Illinois, becoming a gathering place for Mormons in the early 1840s. Nauvoo was the location of the succession crisis, which led to the separation of the Mormon movement into several Latter Day Saint sects. The Church of Jesus Christ of Latter-day Saints, the largest of the sects to emerge from the Mormon schism, has over 55,000 adherents in Illinois today.
A significant number of adherents of other Abrahamic faiths can be found in Illinois. Largely concentrated in the Chicago metropolitan area, followers of the Muslim, Bahá’í, and Jewish religions all call the state home. Muslims constituted the largest non-Christian group, with 359,264 adherents. Illinois has the largest concentration of Muslims by state in the country, with 2,800 Muslims per 100,000 citizens. The largest and oldest surviving Bahá’í House of Worship in the world is located in Wilmette, Illinois, and the oldest standing mosque in the U.S. is the Al-Sadiq Mosque of the Ahmadiyya Muslim Community, located in the Bronzeville neighborhood of Chicago. The Chicago area has a very large Jewish community, particularly in the suburbs of Skokie and Morton Grove. Former Chicago Mayor Rahm Emanuel is the Windy City’s first Jewish mayor.
Chicago is also home to a very large population of Hindus, Sikhs, Jains, and Buddhists. The Bahá’í House of Worship in Wilmette is the center of that religion’s worship in North America.
Zip Code Map
Illinois neighborhoods include: Abingdon, Adair, Addison, Aledo, Alexander, Alexis, Algonquin, Alhambra, Allerton, Alorton, Alpha, Alsip, Alton, Altona, Alvin, Ancona, Andalusia, Anna, Annawan, Antioch, Arenzville, Arlington Heights, Armstrong, Ashland, Ashley, Ashmore, Assumption, Athens, Atkinson, Auburn, Augusta, Aurora, Bannockburn, Barrington, Barry, Bartlett, Bartonville, Basco, Batavia, Bath, Baylis, Beach Park, Beecher, Belle Rive, Belleville, Bellevue, Bellwood, Belvidere, Bensenville, Benson, Berkeley, Berwyn, Bethalto, Big Rock, Bismarck, Blackstone, Blandinsville, Bloomington, Blue Island, Blue Mound, Bluffs, Bluford, Bolingbrook, Bonfield, Bonnie, Bourbonnais, Bowen, Braceville, Bradley, Braidwood, Bridgeview, Brighton, Brimfield, Bristol, Broadlands, Broadview, Brookfield, Brussels, Buckingham, Buffalo, Buffalo Grove, Bull Valley, Bulpitt, Burbank, Burr Ridge, Bushnell, Cabery, Cahokia, Caledonia, Calumet City, Calumet Park, Cambridge, Camp Point, Cantrall, Capron, Carlock, Carlyle, Carol Stream, Carpentersville, Carthage, Cary, Caseyville, Catlin, Centralia, Centreville, Champaign, Chandlerville, Channahon, Chapin, Charleston, Chatham, Chatsworth, Chebanse, Chenoa, Cherry Valley, Chicago, Chicago Heights, Chicago Ridge, Chillicothe, Cicero, Clarence, Clarendon Hills, Clayton, Cleveland, Coal City, Coal Valley, Coatsburg, Colchester, Collinsville, Collison, Colona, Columbia, Concord, Congerville, Cordova, Cornell, Cottage Hills, Country Club Hills, Countryside, Crest Hill, Crestwood, Crete, Creve Coeur, Crystal Lake, Cullom, Custer Park, Dahinda, Dallas City, Dana, Danvers, Danville, Darien, Davis, Davis Junction, Dawson, Decatur, Deer Creek, Deerfield, Deer Park, Dekalb, Delong, Des Plaines, Dewey, Diamond, Divernon, Dix, Dixmoor, Dolton, Dorsey, Dow, Downers Grove, Du Bois, Dundee, Dunlap, Dupo, Durand, Dwight, East Alton, East Carondelet, East Dundee, East Moline, Easton, East Peoria, East Saint Louis, East St Louis, E Carondelet, Edelstein, Edinburg, Edwards, Edwardsville, Elburn, Elgin, Elk Grove Village, Elmhurst, Elmwood, Elmwood Park, El Paso, Elsah, Elvaston, Elwood, Emington, Erie, E Saint Louis, Essex, Eureka, Evanston, Evergreen Park, Ewing, Fairbury, Fairmount, Fairview Heights, Fairview Hts, Farmington, Fayetteville, Fidelity, Fieldon, Fisher, Fithian, Flanagan, Flossmoor, Foosland, Ford Heights, Forest City, Forest Park, Forest View, Forrest, Fowler, Fox Lake, Fox River Grove, Frankfort, Franklin, Franklin Park, Freeburg, Fults, Galesburg, Galva, Garden Prairie, Gardner, Geneseo, Geneva, Genoa, Georgetown, Germantown Hills, Gifford, Gilberts, Gilson, Glasford, Glenarm, Glen Carbon, Glencoe, Glendale Heights, Glen Ellyn, Glenview, Glenwood, Godfrey, Godley, Golden, Golf, Goodfield, Good Hope, Grafton, Granite City, Grant Park, Graymont, Grayslake, Great Lakes, Green Rock, Green Valley, Gridley, Gurnee, Hainesville, Hamilton, Hampshire, Hampton, Hanna City, Hanover Park, Hartford, Harvard, Harvel, Harvey, Harwood Heights, Havana, Hawthorn Wds, Hawthorn Woods, Hazel Crest, Hebron, Hecker, Herscher, Hickory Hills, Highland, Highland Park, Highwood, Hillsboro, Hillsdale, Hillside, Hinckley, Hinsdale, Hodgkins, Hoffman Estates, Holiday Hills, Homer, Homer Glen, Hometown, Homewood, Hoopeston, Hudson, Hull, Humboldt, Huntley, Illinois City, Illiopolis, Ina, Indian Creek, Indian Head Park, Indianola, Industry, Ingleside, Inverness, Island Lake, Itasca, Ivesdale, Jacksonville, Jerseyville, Johnsburg, Joliet, Joy, Justice, Kane, Kankakee, Kappa, Keenes, Keithsburg, Kenilworth, Kewanee, Kilbourne, Kildeer, Kingston, Kirkland, Knoxville, La Fayette, Lafox, La Grange, La Grange Highlands, La Grange Park, La Harpe, Lake Barrington, Lake Bluff, Lake Forest, Lake In The Hills, Lakemoor, Lake Villa, Lake Zurich, Lanesville, Lansing, La Prairie, Laura, Leaf River, Lebanon, Lemont, Lenzburg, Lerna, Liberty, Libertyville, Lima, Lincolnshire, Lincolnwood, Lindenhurst, Lisle, Lk In The Hls, Loami, Lockport, Lombard, London Mills, Long Grove, Long Point, Longview, Loraine, Lovejoy, Loves Park, Lowpoint, Ludlow, Lynn Center, Lynnville, Lynwood, Lyons, Machesney Park, Machesney Pk, Macomb, Madison, Mahomet, Manhattan, Manito, Manteno, Maple Park, Mapleton, Maquon, Marengo, Marietta, Marine, Marissa, Markham, Maryville, Mascoutah, Mason City, Matherville, Matteson, Mattoon, Maywood, Mc Cook, McCullom Lake, McHenry, Mechanicsburg, Medora, Melrose Park, Mendon, Meredosia, Merrionette Park, Metamora, Mettawa, Midlothian, Milan, Millbrook, Millington, Millstadt, Mineral, Minonk, Minooka, Modesto, Mokena, Moline, Momence, Monee, Monroe Center, Montgomery, Moro, Morris, Morrisonville, Morton, Morton Grove, Mossville, Mount Auburn, Mount Prospect, Mount Pulaski, Mount Vernon, Moweaqua, Mundelein, Murrayville, Naperville, Nason, National Stock Yards, Nauvoo, Newark, New Athens, New Baden, New Berlin, New Boston, New Douglas, New Holland, New Lenox, New Windsor, Niantic, Niles, Niota, Nokomis, Normal, Norridge, North Aurora, North Barrington, Northbrook, North Chicago, Northfield, North Henderson, Northlake, Oak Brook, Oak Forest, Oakland, Oak Lawn, Oak Park, Oakwood, Oakwood Hills, Odell, O Fallon, Ogden, Old Mill Creek, Olympia Fields, Oneida, Opdyke, Ophiem, Orion, Orland Hills, Orland Park, Osco, Oswego, Otterville, Owaneco, Palatine, Palmer, Paloma, Palos Heights, Palos Hills, Palos Park, Pana, Panola, Paris, Park City, Park Forest, Park Ridge, Pawnee, Paxton, Payson, Pecatonica, Pekin, Pembroke Township, Penfield, Peoria, Peoria Heights, Peotone, Pesotum, Philo, Phoenix, Piasa, Pingree Grove, Plainfield, Plainville, Plano, Plato Center, Pleasant Plains, Plymouth, Pocahontas, Pontiac, Poplar Grove, Port Barrington, Port Byron, Posen, Potomac, Prairie City, Prairie Du Rocher, Prairie View, Princeville, Prophetstown, Prospect Heights, Quincy, Rankin, Rantoul, Red Bud, Reddick, Reynolds, Richmond, Richton Park, Richview, Ridge Farm, Ridott, Ringwood, Rio, Riverdale, River Forest, River Grove, Riverside, Riverton, Riverwoods, Roanoke, Robbins, Rochester, Rockbridge, Rockdale, Rockford, Rock Island, Rockton, Rolling Meadows, Romeoville, Roodhouse, Rosamond, Roscoe, Roselle, Rosemont, Rossville, Round Lake, Round Lake Beach, Round Lake Heights, Round Lake Park, Roxana, Sadorus, Saint Anne, Saint Augustine, Saint Charles, Saint Jacob, Saint Joseph, Saint Libory, Sandwich, San Jose, Sauget, Sauk Village, Saunemin, Savoy, Schaumburg, Scheller, Schiller Park, Sciota, Scott Air Force Base, Seaton, Secor, Seward, Seymour, Sherman, Sherrard, Shiloh, Shipman, Shirland, Shorewood, Sidell, Sidney, Silvis, Skokie, Sleepy Hollow, Smithton, Solon Mills, South Barrington, South Beloit, South Chicago Heights, South Elgin, South Holland, South Roxana, Spring Bay, Springfield, Spring Grove, Staunton, St Charles, Steger, Stickney, Stillman Valley, Stone Park, Stonington, Strawn, Streamwood, Streator, Sugar Grove, Summerfield, Summit Argo, Sutter, Swansea, Sycamore, Table Grove, Taylor Ridge, Taylorville, Tennessee, Texico, Third Lake, Thomasboro, Thornton, Tilton, Tinley Park, Tolono, Topeka, Tower Lakes, Trenton, Trilla, Trivoli, Trout Valley, Troy, Union, University Park, Urbana, Ursa, Valmeyer, Venice, Vermont, Vernon Hills, Victoria, Village Of Lakewood, Villa Grove, Villa Park, Viola, Virden, Virgil, Vlg Of Lakewd, Volo, Wadsworth, Walnut Hill, Waltonville, Warrenville, Warsaw, Washburn, Washington, Washington Pk, Wataga, Waterloo, Wauconda, Waukegan, Waverly, Wayne, Westchester, West Chicago, West Dundee, Western Springs, Westfield, Westmont, West Peoria, West Point, Westville, Wheaton, Wheeling, White Heath, Williamsfield, Williamsville, Willowbrook, Willow Springs, Wilmette, Wilmington, Winchester, Winfield, Winnebago, Winnetka, Winthrop Harbor, Wonder Lake, Woodhull, Woodlawn, Woodridge, Wood River, Woodstock, Worden, Worth, Yates City, Yorkville, Zion
For more information, see Illinois wiki