DuPage County
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AI overview
DuPage County is a county located in Illinois, situated in the United States. It is one of the state's major population centers and serves as an important economic and residential area in the Chicago metropolitan region.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Country
- United States
- State
- Illinois
- Founded
- February 9, 1839
- Named after
- DuPage River
- Seat
- Wheaton
- Largest city
- Naperville
- Total
- 336 sq mi (870 km )
- Land
- 327 sq mi (850 km )
- Water
- 8.9 sq mi (23 km ) 2.6%
- Estimate 2025
- 934,298
- Density
- 2,850/sq mi (1,100/km )
- Per capita
- $138,857 (2024)
- Time zone
- UTC−6 ( Central )
Article
DuPage County (/duːˈpeɪdʒ/ doo-PAYJ) is located in the U.S. state of Illinois, and is one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat is Wheaton.
Known for its vast tallgrass prairies, DuPage County has become mostly developed and suburbanized, although some pockets of farmland remain in the county's western and northern parts. Located in the Rust Belt, the area is one of few in the region whose economy quickly became dependent on the headquarters of several large corporations due to its close proximity to Chicago. As quarries closed in the 1990s, land that was formerly used for mining and plants was converted into mixed-use, master-planned developments to meet the growing tax base. The county has a mixed socioeconomic profile and residents of Hinsdale include some of the wealthiest people in the Midwest. On the whole, the county enjoys above average median household income levels and low overall poverty levels when compared to the national average.