Chicago (city, Illinois) - geography.

Chicago (city, Illinois) - geography. I INTRODUCTION Downtown Chicago Flowing westward from Lake Michigan, the Chicago River winds through downtown Chicago. Skyscrapers rise along its banks. © Microsoft Corporation. All Rights Reserved. - geography. Chicago (city, Illinois), city and seat of Cook County, located in northeastern Illinois, on the southwestern shore of Lake Michigan, at the mouth of the Chicago River. Chicago is the third largest city in the United States and one of the country's leading industrial, commercial, transportation, and financial centers. Chicago covers a land area of 588.2 sq km (227.1 sq mi) and extends 47 km (29 mi) along Lake Michigan. It occupies flatland traversed by two short rivers: the Chicago River, which flows west from the lake through the downtown area, where it forks into a North Branch and a South Branch; and the Calumet River, in the south, which connects with the small Lake Calumet. Both rivers are linked by canals with the Illinois and Mississippi rivers, establishing Chicago as the connecting point in the waterway between the Mississippi Valley and the Great Lakes-St. Lawrence Seaway. The city's rapid growth was due in large part to its location, with ready access to markets and raw materials. II POPULATION Chicago's population began to decline in the 1950s. However, it increased from 2,783,726 in 1990 to 2,896,016 in 2000. According to the 2000 census, whites constituted 42 percent of the city's population; blacks, 36.8 percent; Asians, 4.3 percent; Native Americans, 0.4 percent; and Native Hawaiians and other Pacific Islanders, 0.1 percent. People of mixed heritage or not reporting race were 16.5 percent of inhabitants. Hispanics, who may be of any race, represented 26 percent of the city's population. In 2006, Chicago's population was estimated at 2,833,321. Chicago is the center of a large metropolitan area spreading across three states, from Kenosha, Wisconsin, in the north to Gary, Indiana, in the southeast. The population of the consolidated metropolitan statistical area increased from 8,115,000 in 1980 to 8,240,000 in 1990. It reached 9,157,500 in 2000. The percentage of minorities is lower in the metropolitan area than in the city. Blacks account for only about one in five in the metropolitan region as a whole, and Hispanics represent approximately one in nine residents. While the proportion of Hispanics is growing in the metropolitan area, black presence has remained mostly unchanged. Almost every ethnic group found in the United States is represented in Chicago. In 2000 more people claimed Polish ancestry in Chicago than any other ancestry, followed by Irish and German. More than 46 percent of the more than 629,000 foreign-born people now living in Chicago entered the United States between 1990 and 2000. Spanish and Polish are the two most common languages spoken at home other than English. III ECONOMY Chicago has a highly diversified economy that has been aided by an extensive transportation and distribution network. It is the nation's most important rail and trucking center and is the location of one of the busiest airports in the United States, Chicago-O'Hare International Airport. Chicago has several commuter railroad lines that serve the suburbs. In addition, the Chicago Transit Authority operates bus, subway, and EL (elevated train) services in the city. The city is a significant port for both domestic and international trade. Great Lakes freighters and river barges carry steel and other metals, ores, stone, vegetable oils, grain, and other products. Overseas vessels arrive via the St. Lawrence Seaway. The port of Chicago is located at the mouth of the Calumet River, in the southern part of the city. Chicago's economy is based on manufacturing, printing and publishing, finance and insurance, and food processing. Among the items manufactured in the city are telephone equipment, radios and televisions, candy and food products, chemicals, diesel engines, musical instruments, office machines, surgical appliances, paints, and soaps. Many of the nation's magazines, sales catalogs, and educational materials are printed or published in Chicago. The Chicago Board of Trade and the Chicago Mercantile Exchange are among the world's largest commodities markets and have led in the development of futures trading and related concepts. The city has long been an important convention and trade-show center, with numerous hotels and extensive exhibition facilities. The increasing importance of this industry made it necessary to renovate and enlarge several facilities, including McCormick Place, a multipurpose facility on Lake Michigan and the largest trade-show facility in North America. Additions to McCormick Place opened in the 1980s, 1990s, and early 20...