Naperville, Illinois

Naperville, Illinois
City
Aerial view of downtown Naperville
Motto: 
Great Service – All the Time
Location of Naperville in Will and DuPage counties in Illinois
Naperville
Naperville
Naperville
Coordinates: 41°45′50″N 88°08′52″W / 41.76389°N 88.14778°W / 41.76389; -88.14778[1]
CountryUnited States
StateIllinois
CountiesDuPage, Will
TownshipsDupage: Lisle, Milton, Naperville, Winfield
Will: DuPage, Wheatland
Settled1831
Incorporated
  • February 7, 1857 (1857-02-07) (Village)
  • March 17, 1890 (1890-03-17) (City}[2][3]
Named afterJoseph Naper
Government
 • TypeCouncil–manager
Area
 • Total
39.70 sq mi (102.81 km2)
 • Land39.11 sq mi (101.29 km2)
 • Water0.59 sq mi (1.52 km2)
Elevation705 ft (215 m)
Population
 (2020)
 • Total
149,540
 • Estimate 
(2024)[5]
153,124
 • Density3,823.57/sq mi (1,476.29/km2)
DemonymNapervillian[6]
Time zoneUTC−6 (CST)
 • Summer (DST)UTC−5 (CDT)
ZIP Codes
60540, 60563–60565, and P.O. box only 60566–60567
Area codes630 and 331
FIPS code17-51622
GNIS feature ID2395147[1]
Websitenaperville.il.us

Naperville (/ˈnpərvɪl/ NAY-pər-vil) is a city in DuPage and Will counties in the U.S. state of Illinois. It is a southwestern suburb of Chicago located 28 miles (45 km) west of the city on the DuPage River.[7][8][9] As of the 2020 census, its population was 149,540,[10] making it the state's fourth-most populous city.

Naperville was founded in 1831 by Joseph Naper. The city was established by the banks of the DuPage River and was originally known as Naper's Settlement. By 1832, over 100 residents lived in Naper's Settlement. In 1839, after DuPage County was split from Cook County, Naperville became the county seat, which it remained until 1868. Beginning in the 1960s, Naperville experienced a significant population increase as a result of Chicago's urban sprawl.

Naperville is home to Moser Tower and Millennium Carillon, one of the world's four largest carillons. It is also home to an extensive parks and forest preserve network, including Centennial Beach. The city has two school districts, 203 and 204. Naperville's largest employer is Edward Hospital with 4,500 employees. Naperville has a train station served by Amtrak and Metra.

  1. ^ a b c U.S. Geological Survey Geographic Names Information System: Naperville, Illinois
  2. ^ "Naperville History". The Encyclopedia of Chicago. Naperville Heritage Society. 2004. Archived from the original on December 24, 2010. Retrieved December 23, 2010.
  3. ^ "Name of Local Government: Naperville". Illinois State Archives. Archived from the original on April 9, 2022. Retrieved January 31, 2022.
  4. ^ "2020 U.S. Gazetteer Files". United States Census Bureau. Archived from the original on March 15, 2022. Retrieved March 15, 2022.
  5. ^ "City and Town Population Totals: 2020-2024". United States Census Bureau. U.S. Department of Commerce. March 2025. Retrieved September 2, 2025.
  6. ^ "Napervillian Creates App to Help People Connect | Naperville NCTV17". NCTV17. May 2, 2021. Archived from the original on April 9, 2022. Retrieved January 5, 2022.
  7. ^ Kaufman, Elyssa. "Chicago Weather Alert: At least 2 tornadoes confirmed in Chicago suburbs". CBS News. Archived from the original on March 25, 2023. Retrieved March 25, 2023.
  8. ^ Wood, Becca. "Chicago Suburb Named Fourth Best Place to Live in US, Several Midwestern Towns Make Top 10: New List". NBC Chicago. Archived from the original on March 25, 2023. Retrieved March 25, 2023.
  9. ^ "Why Everybody Loves Naperville". Chicago Magazine. Archived from the original on March 25, 2023. Retrieved March 25, 2023.
  10. ^ "Naperville city, Illinois". United States Census Bureau. Archived from the original on March 10, 2022. Retrieved February 23, 2021.