About Naperville, IL
Naperville is located in Illinois. Naperville, Illinois has a population of 142,112. Naperville is more family-centric than the surrounding county with 37% households with children. The county percentage for households with children is 31%.
The median household income in Naperville, Illinois is $118,959. The median household income for the surrounding county is $89,084 compared to the national median of $61,963. The median age of people living in Naperville is 40 years.
The average high temperature in July is 85.07 degrees, with an average low temperature in January of 11.73 degrees. The annual precipitation is 38.24.
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