With 150,692 people, Naperville is a city in Illinois. 73% of adults hold a bachelor's degree, against 36% nationally. That is roughly 86% ahead of the Illinois median. The median household earns $155,105, about 89% above the national median. That puts it in the top 2% of US cities for household income. Density works out to 3,848 people per square mile.
At a glance
Wealthier
median household income $155,105, above the US median
US median: $82,259
Mid-age
median age 40.4
US median: 38.9
More educated
73% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Naperville
What changed most since 1990
Asian share4.8% → 22.3%(+17.6 pts)US over the same years: +3.1 pts
White share91.5% → 61.0%(−30.5 pts)US over the same years: −17.8 pts
Population85,351 → 150,692(+77%)US over the same years: +35%
Naperville's population equals 16% of DuPage County's. Its number of residents living in poverty equals 11% of the county's. Its number of people who work from home equals 23% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)19.2%(619)
US avg: 26.4%
Gulf War (1990s)21.9%(708)
US avg: 24.3%
Vietnam era33.4%(1,078)
US avg: 33.1%
Korean War3.9%(127)
US avg: 4.5%
World War II1.3%(43)
US avg: 1%
Share of the 3,231 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Naperville, decade by decade
Naperville population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
85,351
$146,354
$422,892
54.4%
19.9
2000
128,358
$161,710
$452,135
60.6%
37.7
2010
141,853
$146,606
$579,600
65.1%
54.9
2020
149,540
$154,714
$514,874
69.9%
69.8
2024
150,692
$155,105
$540,200
72.5%
71.0
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
