City Flag of Chicago (Illinois) Banner
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This design features the civil flag of Chicago, which consists of two light blue horizontal bars, or stripes, on a white background. The city of Chicago, is the most populous city in the U.S. state of Illinois, and one of the most populous cities in the entire United States; it is also the most populous city in the Midwestern United States. Chicago is the county seat of Cook County. Chicago is often known as the "Windy City".