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(IPA: /w?'kig?n/) is a city in Lake County, Illinois. As of the 2000 census, the city had a total population of 87,901. A 2003 census estimated the city population to be 91,452. It is the ninth-largest city in Illinois by population.
Waukegan is located at (42.372471, -87.861521). Waukegan is on the shore of Lake Michigan, about 8 miles south of the border with Wisconsin and 40 miles north of downtown Chicago, at an elevation of about 669 feet above sea level.
According to the United States Census Bureau, the city has a total area of 59.8 km² (23.1 mi²). 59.6 km² (23.0 mi²) of it is land and 0.2 km² (0.1 mi²) of it (0.35%) is water.