DuPage County is a county located in the
state of Illinois. Its county seat is Wheaton. As of 2000, the
population is 904,161. This county is part of Chicago-land. The county
is divided into nine different townships: Downers Grove, Lisle,
Naperville, York, Milton, Winfield, Addison, Bloomingdale & Wayne. It
uses the 630 area code. The population is now close to 930,000 in 2005.
The municipality that has the largest population
enclosed within DuPage County is Naperville. Wheaton and Downers Grove
are the next largest communities, respectively. A small portion of the
City of Chicago is located within county limits but the area is
primarily commercial and as of recent census estimates has only 230
residents.
Long known as one of the nation's
wealthiest counties, DuPage County has transformed itself from a
primarily agricultural economy to one rich in many different
types of commerce. Today, DuPage County boasts a per capita
income second only to Lake County, Illinois in the state, and
37th highest in the nation.