DuPage County was founded in the year 1839 and named after DuPage (French fur trader). The area of the county is 336.41 sq mi. More than 0.92 million people with a splendid combination of White, Native American, black or African American, Asian, Hispanic or Latino, Pacific Islander, and others along with 0.32 households and 0.23 million family units reside in this county. Wheaton is the county seat and Aurora is the largest city.

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