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The State Plane Coordinate System (SPCS) is a set of 125 geographic zones or coordinate systems designed for specific regions of the United States. Each U.S. state contains one or more state plane zones, the boundaries of which usually follow county lines. There are 108 zones in the contiguous United States, with 10 more in Alaska, five in ...
The Chicago metropolitan area represents about 3 percent of the entire US population. Chicagoland has one of the world's largest and most diversified economies. With more than six million full and part-time employees, the Chicago metropolitan area is a key factor of the Illinois economy, as the state has an annual GDP of over $1 trillion. [7]
Module:Location map/data/United States Chicago metropolitan area is a location map definition used to overlay markers and labels on an equirectangular projection map of Chicago metropolitan area. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
According to the United States Census Bureau, the City of Chicago has a total area of 606.1 km 2 (234.0 sq mi). 588.3 km 2 (227.1 sq mi) of it is land and 17.8 square kilometres (6.9 sq mi) of it is water. The total area is 2.94% water. The city has been built on relatively flat land, the average height of land is 579 feet (176 m) above sea level.
224, 331, 630, 779, 815, 847. Collar counties is a colloquialism for DuPage, Kane, Lake, McHenry, and Will counties, the five counties of Illinois that border Cook County, which is home to Chicago. The collar counties are part of the Chicago metropolitan area and comprise many of the area's suburbs. While Lake County, Indiana, also borders Cook ...
Chicago Rockford International Airport (IATA: RFD, ICAO: KRFD, FAA LID: RFD) — typically referred to as Rockford International Airport, Chicago Rockford, or by its IATA call letters, RFD — is a commercial airport in Rockford, Illinois, located 68 mi (109 km) northwest of Chicago. [4][5] Established in 1946, the airport was built on the ...
Community areas in Chicago. A map of the 77 community areas, broken down by purported regions. While the areas have official use and definition, the color groupings are unofficial, and such "regions" may be defined differently, grouped differently, or not be used at all. The city of Chicago is divided into 77 community areas for statistical and ...
By 1969, Willard was the second-busiest airport in the state of Illinois. [3] After the Airline Deregulation Act of 1978, many airlines found service to small airports to be inefficient, the price differential to airfares from major hub airports such as Chicago O'Hare grew, which limited demand for tickets from Willard and caused airlines to leave.