Naperville, Illinois Map and Directory
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According to the United States Census Bureau, Naperville is a City that is located primarily in DuPage County, Illinois at 41.75 degrees North and 88.16 degrees West.
The city's time zone is America/Chicago, and the city's primary telephone area code is 630.
The land area of Naperville is about 38.67 square miles, whereas the water area of the city is about 0.57 square miles.
The Census Bureau estimates that Naperville had about 147,682 residents in 2017, which is approximately 3,819 people per square mile of land area.
According to recent American Community Survey data, Naperville had 49,741 total estimated households and the median household income was about $109,512 per year.
The Illinois counties map at upper right shows DuPage County, highlighted in red. Use the menu below to display interactive maps of Naperville, either in a frame on this page or in full-screen mode.
Use the menu below to display categorized Naperville directories.
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* Parenthesized numbers indicate economic activity levels.
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