Chicago metropolitan area
The Chicago metropolitan area, or Chicagoland, is the metropolitan area that includes the city of Chicago, Illinois, and its suburbs. The population is about 9.5 million people and CSA population of 9.9 million people, it is the third largest metropolitan area in the United States.
Chicago Metropolitan Area
Chicago-Naperville-Michigan City, IL-IN-WI CSA
|• Metro||10,856 sq mi (28,120 km2)|
|Highest elevation||673 ft (205 m)|
|Lowest elevation||579 ft (176 m)|
|• Metropolitan region||9,472,676|
|• Density||1,318/sq mi (509/km2)|
|Ranked 3rd in the US|
|Time zone||UTC-6 (CST)|
|• Summer (DST)||UTC-5 (CDT)|
|Area codes||219, 224/847, 262, 312/872, 331/630, 574, 708, 773/872 and 779/815|
The Chicago metropolitan area is one of the world's largest economies, with more than four million employees and making an annual gross regional product (GRP) of over $561 billion. The region is home to more than 400 major corporate headquarters, including 31 in the Fortune 500.
- "Elevations of the 50 Largest Cities". U.S. Geological Survey. Retrieved 23 January 2016.
Chicago city proper only
- "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2014 - United States -- Combined Statistical Area; and for Puerto Rico 2014 Population Estimates" (CSV). United States Census Bureau, Population Division. March 2013. Retrieved April 1, 2013.
- "Economy". Worldbusinesschicago.com. Retrieved October 3, 2017.