Map of Chicago, Illinois

Largest Cities in Illinois

Chicago Chicago, a city on Lake Michigan in Illinois, USA, nicknamed the windy city. City population 2.7 million (2010), area 590 km2. Chicago is the center of an urban region of approximately 15,000 km2 (8.3 million residents), extending far into the prairie hinterland and neighboring states of Indiana and Wisconsin. Since the 1950’s, growth has […]

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