2,122 sq mi (5,496 sq km ) is the area of the urban region of Chicago, Illinois . The water area of the city is 6.80 sq mi (17.62 sq km )  3.0% . The area of the metro region is 10,874 sq mi (28,160 sq km ) . The city land area is 227.34 sq mi (588 sq km ) . The city is 234.14 sq mi (606 sq km ) in area
606 sq km  is the area of Chicago, Illinois