The Chicago metropolitan statistical area (MSA) was originally designated by the United States Census Bureau in 1950. PO Box Albert Caddo County 73002. [31] It ranked third in 2008, behind the HoustonSugar LandBaytown and DallasFort Worth metropolitan areas,[32] and ranked second behind the New York metropolitan area in 2009. Your complete guide to the Minneapolis area. Surrounding the low plain are bands of moraines in the south and west suburbs. Income limits for 9-person household calculated at 140% of 4-person . The complete list of ZIP codes that cross state lines is available as part of our US ZIP code list. Median Household Income in Chicago, IL with a color coded Zip Code Heat Map. Across all top 10 zip codes on our list, the median listing price reached $432,000 in June, 3.6% higher than their surrounding metro areas, but 4.0% lower than . It gets even more complicated when trying to assign a ZIP code to a specific county (as much as 25% cross county lines), congressional district, metro area, time zone, area code, etc. Hover over any zip code below to highlight that area. Locate a Post Office anywhere in the United States. Among them are: Listing of the professional sports teams in the Chicago metropolitan area. View the newest available cartographic boundary files in shapefiles, geodatabase, and Keyhole Markup Language (KML) formats. % An official website of the United States government. . Aurora, Elgin, Joliet, and Naperville are noteworthy for being four of the few boomburbs outside the Sun Belt, West Coast and Mountain States regions, and exurban Kendall County ranked as the fastest-growing county (among counties with a population greater than 10,000) in the United States between the years 2000 and 2007.[27]. 1-800-425-1169. . The Galesburg Police . These resources perform important functions in carbon storage, water recycling, and energy saving. Portions of ZIP code 60619 are contained within or border the city limits of Chicago, IL, . Metro Area: Chicago-Naperville-Elgin Metro Area. On this page, we'll list out the 67 zip codes we have on record for Chicago, Illinois in Cook County and DuPage County as well as the land area for each zip code. You may Save your changes to view them, or Cancel to stay on this page. The rate of violent crime in the Chicago metro area is 4.19 per 1,000 residents during a standard year. However, mandatory ten-digit dialing was not in effect until 2002. Income. ZIP Code Boundaries. The few low hills are sand ridges. On this page, we'll list out the 67 zip codes we have on record for Chicago, Illinois in Cook County and DuPage County as well as the land area for each zip code. Effective until superseded. mi. [24][25], As of the 2010 Census, the metropolitan area had a population of 9,729,825. LIST 1: FIPS Metropolitan Area (CBSA) Codes Unless otherwise noted, Metropolitan Areas are defined using June 30, 2003 OMB definitions. In March 2008, the Chicago Mercantile Exchange announced its acquisition of NYMEX Holdings Inc, the parent company of the New York Mercantile Exchange and Commodity Exchange. Micropolitan Statistical Areas) Population of 50,000 or more people (a.k.a. Broad Street: 309/343-9151: Knoxville Police Department: 215 North Hebard Street:. ZIP Codes assigned to businesses only or single delivery point address will not necessarily appear as ZCTAs. Overall Niche Grade. [citation needed], Colonel Robert R. McCormick, editor and publisher of the Chicago Tribune, usually gets credit for placing the term in common use. Source: US Internal Revenue Service - 2018. 1 0 obj ) or https:// means youve safely connected to the .gov website. Chicagoland is an informal name for the Chicago metropolitan area. Are you looking for real estate agents or brokers? Founded in 1945, Walter E. Claim this business (630) 539-4320. . It became common to call suburbanites "708'ers", in reference to their area code. In 2020, Chicago, IL had a population of 2.7M people with a median age of 34.8 and a median household income of $62,097. Access demographic, economic and population data from the U.S. Census Bureau. a little higher than the amount in Illinois: $37,306. Lookup the details of any Area Code and Prefix. 5Y Overview of the Chicago Area (Metro Area). After such implementation, the entire state will be composed of overlay regions. updated 03/02/2023. County: Cook County. . $155. Click the zip code link(s) above to get detailed demographics data for the specific zip code (or ZCTA). Our surveys provide periodic and comprehensive statistics about the nation. ZIP Code in Illinois. Explore census data with visualizations and view tutorials. To sign up for updates please enter your email address. ZCTA is a trademark of the U.S. Census Bureau; ZIP Code is a trademark of the U.S. Illinois is the 25th largest state by total land area, with a land area of 57,914 square miles (149,997 square kilometers) and has a total population of 12,716,164 people as of the most recent U.S. Census survey. According to the Encyclopedia of Chicago, there is no specifically known origin of the phrase, but it has been commonly used among policy makers, urban planners, and in the media. . [#}^{{6|{L'0Jt(;-XI.l'o~L389N\=[~seft\e'ir%tBk'FRTR?%@=inD}kjMsukvmmfbXf["h`1Vuz$3vr.4g9W Wci ^K.?v5d"F_=u}""txkZ%I+-ZH'ZwM.`$+4JECt:t:Y;E[?`/%R4!Sv'Xuu7aZ\"NqGf92!0 [37] Numerous private and religious school systems are also found in the region, as well as a growing number of charter schools. With a diversity score of 87 out of 100, Chicago is much more diverse than other US cities. Measuring America's People, Places, and Economy. Major airports, of which the Chicago metro area has 2, always look like high-crime locations due to the large number of people and the low population nearby. Typically, a single zip code will stretch across several separate Chicago neighborhoods. Description. Typical Home Value (Zillow Home Value Index) $329,542. "Chicagoland" redirects here. public before people will be able to see it. The Chicagoland Chamber of Commerce defines it as all of Cook, DuPage, Kane, Lake, McHenry, and Will counties. Data Sources: U.S. Census, proprietary data mapping and analysis. View all the available relationship files from the Geography program. This change requires a reload. Enter in a city and state to find the ZIP Code(s) for that location. Need a ZIP Code for Chicago, IL? ZIP Code boundaries in Chicago. redirected to the Chicago website where These data are available through data.census.gov. ZIP Codes: 46301, 46303, 46304, . These unassigned blocks were merged into an adjacent ZCTA based on the length of shared boundary. <>>> The Chicago area is home to a number of the nation's leading research universities including the University of Chicago, Northwestern University, University of Illinois at Chicago, DePaul University, Loyola University, and the Illinois Institute of Technology. . As the Chicago metropolitan area has grown, more counties have been partly or totally assimilated with the taking of each decennial census. The remaining area without an overlay in the northern part of Illinois, 708, eventually received such with area code 464 taking effect on January 21, 2022. The data can be viewed on the Chicago Data Portal with a web browser. [26] you will be prompted to sign in. Each year, CMAP updates these snapshots for the region's seven counties (Cook, DuPage, Kane, Kendall, Lake, McHenry, and Will), 284 communities . $39,068 Per capita income. September, June and August are the most pleasant months in the 60637 zip code, while January and December are the least comfortable months. Lookup the details of any North American Area Code. The least diverse areas are located in the south parts of Chicago. [40] In higher education, University of Chicago founder William Rainey Harper was a leading early advocate of the junior college movement; Joliet Junior College is the nation's oldest continuously-operating junior college today. The term Chicagoland has no official definition, and the region is often considered to include areas beyond the corresponding MSA, as well as portions of the greater CSA. There are many transportation options around the area. Secure .gov websites use HTTPS ZIP Code Data. Find all ZIP Codes within the given radius, Calculate the Distance between two ZIP Codes. Home | Products | Learn About ZIP Codes | Find a Post Office | Search | Contact | FAQs. We have the professionals you need. Thank you for visiting our site. Meaning of chicago metropolitan area. As surrounding counties saw an increase in their population densities and the number of their residents employed within Cook County, they met Census criteria to be added to the MSA. For example, the Chicago Mercantile Exchange, a trading exchange for global derivatives, had begun its life as an agricultural futures market. Its urban area is one of the forty largest in the world. The average sale price of a home in Chicago was $300K last month, down 5.2% since last year. The suburbs, surrounded by easily annexed flat ground, have been expanding at a tremendous rate since the early 1960s. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010]. The Chicago MSA, now defined by the U.S. Office of Management and Budget (OMB) as the ChicagoNapervilleElgin, ILINWI Metropolitan Statistical Area, is the third largest MSA by population in the United States. The tallest dunes reach up to near 200 feet (61m) and are found in Indiana Dunes National Park. Some addresses will end up with a ZCTA code different from their ZIP Code. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ). . Income limits for all other income levels calculated per HUD methodology, based on Very Low Income (50% AMI) limit. Only those situated primarily within the Chicago combined statistical area are listed here. Local television channels broadcasting to the Chicago market include WBBM-TV 2 (CBS), WMAQ-TV 5 (NBC), WLS-TV 7 (ABC), WGN-TV 9 (Ind), WTTW 11 (PBS), MeTV 23, WCIU 26 (CW), WFLD 32 (FOX), WCPX-TV 38 (Ion), WSNS-TV 44 (Telemundo), WPWR-TV 50 (MyNetworkTV), and WJYS-TV 62 (The Way). South Lasalle Branch Address: 11 South Lasalle St Chicago, IL 60603 Get Directions Phone: (630) 701-6999 Today's Hours: post office near me closing time Citibank in Chicago, IL - 27 Locations Citibank in Chicago, IL 27 Locations 1. In 1957, area code 815 was split for the assignment of area code 309 to western central Illinois. You can preview it, but you will need to make it public before people will be able to see it. Here is the complete list of all of the zip codes in Cook County, IL and the city/neighborhood in which the zip code is in: 60007 (Elk Grove Village), 60018 (Des . Chicagoland, as the metropolitan area is also called, has one of the world's largest and most diversified economies. Postal Service [Last Updated: 2/1/2023]. The combined statistical area as a whole had a population of 9,876,339 as of 2021.[10]. Within the boundary of the 16-county Chicago Combined Statistical Area lies the Chicago urban area, as well as 26 smaller urban areas. Night aerial view of Chicago and vicinity. Chicago street map Catalog Record Only Title from panel. Metropolitan Statistical Areas) While Chicago's West Side is the poorest section of the city, the western and northwestern suburbs contain many affluent areas. Counties highlighted in gray were not included in the MSA for that census. Total Population by Metro Area#15. Toggle navigation. 60540. Enter a ZIP Code to find nearby Post Offices. created May 14 2014. updated May 14 2014. You have unsaved data that will be lost if you leave this page. ", Racial and Locational Patterns of Subsidized Housing in the Chicago Suburbs: A Report to the MacArthur Foundation, U.S. Census Urbanized Area Outline Map (2000), Chicago-Naperville-Michigan City, IL-IN-WI Combined Statistical Area (2012) map, U.S. Census Bureau Chicago city, Illinois QuickFacts, Metropolitan and Micropolitan Statistical Areas, About Metropolitan and Micropolitan Statistical Areas, Metropolitan and Micropolitan Statistical Areas Population Totals and Components of Change: 2010-2019, https://en.wikipedia.org/w/index.php?title=Chicago_metropolitan_area&oldid=1142782755, Pages with non-numeric formatnum arguments, Pages using infobox settlement with bad settlement type, Pages using multiple image with auto scaled images, Pages using infobox settlement with no map, Articles with unsourced statements from July 2015, Articles with unsourced statements from March 2019, Pages using Sister project links with hidden wikidata, Creative Commons Attribution-ShareAlike License 3.0, 4 lines serving southern Cook County and Will County, 3 lines serving western Cook County, DuPage County, and Kane County, 2 lines serving northern Cook County and Lake County, 1 line serving northern Cook County, Lake County, and Kenosha County, 1 line serving northwestern Cook County and McHenry County. With the depletion of new numbers in area codes 312 and 773, an overlay of both of them, area code 872, was created in November 2009, beginning ten-digit dialing within the city limits of Chicago. The Census Bureau used block group boundaries to identify and group unassigned blocks. In 1989, area code 708 was created for all of the suburbs in the Chicago metropolitan area while the city of Chicago kept the original 312. "0-8416-9263-7 JE-II." On this Wikipedia the language links are at the top of the page across from the article title. A lock ( Postal Service. Pace bus routes primarily serve the suburbs, with some service into the city. 4 0 obj ZIP Code in Illinois, Overall Niche Grade: A+, Population: 39,261, View nearby homes. U.S. Would you like to go to data.cityofchicago.org? Amtrak operates a national rail hub at Union Station in Downtown Chicago. * Demographic data is based on 2010 Census for the City of CHICAGO. [16], Today, the Chicago Tribune's usage includes the city of Chicago, the rest of Cook County, eight nearby Illinois counties (Lake, McHenry, DuPage, Kane, Kendall, Grundy, Will, and Kankakee), and the two Indiana counties of Lake and Porter. dataset. ZIP code 60619 is primarily located in Cook County. 2023 All rights reserved | Privacy and Terms | Cookies | Sitemap | DMCA Notice, 60661, 60606, 60607, 60605, 60604, 60603, 60602, 60601. The average sale price per square foot in Chicago is $215, up 0.0% since last year. Zip code 60018 statistics: (Find on map) Estimated zip code population in 2016: 30,956 Zip code population in 2010: 30,099 Zip code population in 2000: 29,950 Mar. 312 was created to serve the Chicago metropolitan area, which includes Cook County and the city of Chicago, before it was split in 1996 into 773. With more than 700 million registered users across more than 180 countries, our mission is to design a more enlightened way of working. The Chicago Marathon is one of the World Marathon Majors. Zip Code 60637 Profile ZIP Code 60637 is located in the state of Illinois in the Chicago metro area. [10], The Chicago MSA is further subdivided into four metropolitan divisions. #3 Best ZIP Codes to Live in Chicago Area. 16980 Chicago-Naperville-Elgin, IL-IN-WI MSA 17020 Chico, CA MSA 17060 Chillicothe, OH MISA 17140 Cincinnati, OH-KY-IN MSA The Census Bureau assigned blocks that contained addresses, but did not have a single most frequently occurring ZIP Code to the ZCTA with which the blocks had the longest shared boundary. %PDF-1.5 Home; Illinois Atlas; . We hope your visit was informative and enjoyable. mi. Browse the directory of real estate professionals at realtor.com. The Chicago area also headquarters a wide variety of global financial institutions including Citadel LLC, Discover Financial Services, Morningstar, Inc., CNA Financial, and more. CAPITAL METRO (77) EASTERN (178) GREAT LAKES (87) NORTHEAST (116) PACIFIC (62) SOUTHERN (167) WESTERN (233) * Denotes ZIP 3 Codes which are mapped to more than one District. Galesburg, IL Free Criminal Records. This prompted poet Carl Sandburg to describe Chicago as the "Hog Butcher for the World".[30]. Official websites use .gov It is the railroad center of the nation and is always thriving with tremendous . This view is currently private. [citation needed], The term "collar counties" is a colloquialism for the five counties (DuPage, Kane, Lake, McHenry, and Will) of Illinois that border Chicago's Cook County. [citation needed]. January 2023. Information and translations of chicago metropolitan area in the most comprehensive dictionary definitions resource on the web. Next, the most frequently occurring ZIP Code within each block was assigned to the entire census block as a preliminary ZCTA code. Shortly after in 1996, area code 773 was created for the residential parts of the city of Chicago, while downtown kept area code 312. City; State; County; Area . All of the zip code data on this page is sourced from the United States Census Bureau geography reference files. The Chicago area, meanwhile, began to produce significant quantities of telecommunications gear, electronics, steel, crude oil derivatives, automobiles, and industrial capital goods. Hover over any zip code below to highlight that area. #1 Best ZIP Codes to Buy a House in Chicago Area. In addition to the Chicago Loop, the metro area is home to a few important subregional corridors of commercial activities. Changelog. USPS ZIP Codes are not areal features but a collection of mail delivery routes. about 80 percent of the amount in the Chicago-Naperville-Elgin, IL-IN-WI Metro Area: $74,621. The region is part of the Great Lakes Megalopolis, containing an estimated 54 million people. View of Chicago greater metropolitan region and the North branch of the. Within the city limits there are close to 60 different Chicago zip codes. 2016 cost of living index in zip code 60018: 103.5 (near average, U.S. average is 100) Land area: 16.3 sq. However, there are many neighborhoods big enough to have their own zip code, such as East Rogers Park (60626). [41] Later U of C president Robert Maynard Hutchins was central to the Great Books movement, and programs of dialogic education arising from that legacy can be found today at the U of C, at Shimer College,[42] and in the City Colleges of Chicago and Oakton Community College in the Northwest suburbs.[43]. According to the Census Bureau includes: Chicago, Naperville, Elgin and parts of Indiana and Wisconsin. This view is currently private. Chicago is the largest metropolitan area in the US. Typical Monthly Rent (Zillow Observed Rent Index) $1,970. Use the box below to find the ZIP+4 of any U.S. address. The settlements began as farm centers (41%), industrial towns (30%), residential railroad suburbs (15%), and recreational/institutional centers (13%). From 1947 until 1988, the Illinois portion of the Chicago metro area was served by a single area code, 312, which abutted the 815 area code. Your complete guide to the Chicago area. x[ko7n>( Statistical data for ZCTAs are available from: We do offer a few statistical products by ZIP Code through our economic surveys. Chicago, Illinois is located in Cook county. List of North American Numbering Plan area codes, https://nationalnanpa.com/reports/October%202021%20NPA%20Exhaust%20Analysis.pdf, "New 861 area code coming to 309 region, assigned to new numbers 2022-2023", https://en.wikipedia.org/w/index.php?title=List_of_Illinois_area_codes&oldid=1140246048, All articles with bare URLs for citations, Articles with bare URLs for citations from March 2022, Articles with PDF format bare URLs for citations, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 19 February 2023, at 04:50. CME'S acquisition of NYMEX was completed in August 2008. [15] He stated that Chicagoland comprised everything in a 200-mile (320km) radius in every direction and reported on many different places in the area. You can preview it here, but you will need to make it Portions of ZIP code 60637 are contained within or border the city limits of Chicago, IL, . [33], The Wall Street Journal summarized the Chicago area's economy in November 2006 with the comment that "Chicago has survived by repeatedly reinventing itself. The zip codes for Chicago, Illinois, are 312, 773, and 708. Area codes 847 (northern suburbs) and 630 (western suburbs) were created from a split of suburban area code 708 in 1996. *Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and . 176 Chicago-Naperville-Michigan City, IL-IN-WI (part) 16980 Chicago-Naperville-Joliet, IL-IN-WI 28100 Kankakee-Bradley, IL 33140 Michigan City-LaPorte, IN . . Canada Postal Codes. Use the ZIP code equivalence table in this section to determine the county and metropolitan area in which 5-digit ZIP codes of interest are located. Chicago, Illinois Information. [29] Some of the urban areas below may partially cross into other statistical areas. Home; Find ZIPs in a Radius; . 3 0 obj Racial inequalities in education in the region remain widespread, often breaking along district boundaries;[38] for instance, educational prospects vary widely for students in the Chicago Public Schools compared to those in some neighboring suburban schools. Share sensitive information only on official, secure websites. Detailed information on every zip code in Chicago. Erik J. Martin is a Chicago area-based freelance writer whose articles have been published by AARP The . Trends. A locked padlock The . Area codes 219 , 224 / 847 , 262 , 312 / 872 , 331 / 630 , 574 , 708 , 773 / 872 and 779 / 815 The Chicago metropolitan area , or Chicagoland , is the metropolitan area that includes the city of Chicago , Illinois , and its suburbs , spanning 14 counties in northeast Illinois , northwest Indiana , and a small portion of southeast Wisconsin . Please contact the US Postal Service for additional information about ZIP codes. Joliet was second with rent climbing 5.3%. Zip Code 60619 Profile ZIP Code 60619 is located in the state of Illinois in the Chicago metro area. In creating ZCTAs, the Census Bureau took the most frequently occurring ZIP Code in an area for the ZCTA code. After Cook County, they are also the next five most populous counties in the state. By joining you agree to our terms of service. The Chicago metropolitan area, also colloquially referred to as Chicagoland, is a metropolitan area in the Midwestern United States. Detailed information on every zip code in Detroit You may Update this view or Save a new view to see your changes, or Cancel to stay on this page. A 2012 survey of the urban trees and forests in the seven county Illinois section of the Chicago area found that 21% of the land is covered by the tree and shrub canopy, made up of about 157,142,000 trees. Other ethnic groups such as Native Americans and Pacific Islanders made up 2.0% of the population. The Tribune was the dominant newspaper in a vast area stretching to the west of the city, and that hinterland was closely tied to the metropolis by rail lines and commercial links. Keep reading to learn which cities are more or less expensive for car insurance. Area Codes 73001. Arlington Heights was third with rent rising 3.8% last month. <> Rather than divide the city by a northsouth area code, the central business district retained the 312 area code, while the remainder of the city took the new 773 code. Income limits are for the Chicago-Naperville-Joliet, IL HUD Metro FMR Area. This new platform on data.census.gov is based on overwhelming feedback to streamline the way you get data and digital content from Census Bureau. To access the full The Excel spreadsheet lists ZIP Codes with the associated Area and District Codes. [4][5] The Chicago area is the fourth largest metropolitan area in North America (after the metro areas of Mexico City, New York City, and Los Angeles), the third-largest metropolitan area in the United States, the largest within the entire Midwest, and the largest in the Great Lakes megalopolis. The Fastest Growing Cities For Rents in Chicago Metro Area (M/M%) Oak Park had the largest monthly rental growth rate, up 6%. [22] The planning area has a population of over 8 million, which includes the following locations in Illinois:[23]. With many companies moving to Chicagoland, and many current companies expanding, the area ranked as the nation's top metropolitan area for corporation relocations and expansions for nine consecutive years, the most consecutive years for any region in the country.[9]. ZIP Code Tabulation Areas (ZCTAs) are generalized areal representations of United States Postal Service (USPS) ZIP Code service areas. ZIP-Codes.com Internal Data Creation [Last Updated: 2/1/2023]. USPS Mailing Promotions seek to increase engagement and response rates for Mailers by leveraging high value mailpieces. The system has been updated with OMB area definitions published as of March, 2020. By the early 2000s, Illinois' economy had moved toward a dependence on high-value-added services, such as financial trading, higher education, logistics, and health care. Tableau users should select the OData v2 endpoint option. A member of the public created this dataset. A .gov website belongs to an official government organization in the United States. To leave a comment, you will be Includes notes, indexes, metro-area road inset, ancillary city-center map, ancillary zip-code map, specimen map, publisher's index map, and advertisement. List of 67 Zip Codes in Chicago, Illinois, Common Asian and Pacific Islander Surnames, Common American Indian/Alaskan Native Surnames. USPS ZIP Codes are not areal features but a collection of mail delivery routes. The data can be viewed on the Chicago Data Portal with a web browser. [13] The first usage was in the Tribune's July 27, 1926 front page headline, "Chicagoland's Shrines: A Tour of Discoveries", for an article by reporter James O'Donnell Bennett. A+. about the same as the amount in the Chicago-Naperville-Elgin, IL-IN-WI Metro Area: $39,625. The metro area also has a large number of White, Black, and Arab American residents, making the Chicago metropolitan area a truly diverse region. In 1989, area code 708 was created for all of the suburbs in the Chicago metropolitan area while the city of Chicago kept the original 312. News NAICS Codes Jobs About Us Contact Us Help . [7] The region is home to more than 400 major corporate headquarters, including 31 in the Fortune 500[8] such as McDonald's, Boeing, United, and Blue Cross Blue Shield. Database Download: Median Household Income in Chicago, IL by Zip Code: Chicago, IL Report: Median Household Income $0.00: Related Reports. However, there is a major exception to this. 73003. [39], Historically, the Chicago metropolitan area has been at the center of a number of national educational movements, from the free-flowing Winnetka Plan to the regimented Taylorism of the Gary Plan. A continental divide, separating the Mississippi River watershed from that of the Great Lakes and Saint Lawrence River, runs through the Chicago area. Find all the Area Codes for a given State. ZIP 3 Code List by Area/District * Denotes ZIP 3 Codes which are mapped to more than one District. The Census Bureau first examined all of the addresses within each census block to define the list of ZIP Codes by block. The five most common tree species are buckthorn, green ash, boxelder, black cherry, and American elm. View nearby homes. The 2021 census estimate for the population of the MSA was 9,509,934. Chicago is home to the largest futures exchange in the world, the Chicago Mercantile Exchange. And the Loop, despite its small size, requires six zip codes all to itself because of the high concentration of addresses in downtown. You will now access. Area codes 847 (northern suburbs) and 630 (western suburbs) were created from a split of suburban area code 708 in 1996. ZIP Code boundaries in Chicago. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ). The Chicago housing market is somewhat competitive. According to the 2000 U.S. Census, poverty rates of the largest counties from least poverty to most are as follows: McHenry 3.70%, Dupage 5.9%, Will 6.7%, Lake 6.9%, Kane 7.4%, Cook 14.5%. The population density was 1,318 per square mile. In 1988 the 708 area code was introduced and the 312 area code became exclusive to the city of Chicago. In March 2007, an overlay plan was created for NPA 630 adding area code 331, and 779 was added to 815. The MSA had a 2020 census population of 9,618,502 and the combined statistical area which spans up to 19 counties had a population of nearly 10 million people.