Naperville, Illinois Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Naperville, IL Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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A+
Health Top grade
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A+
Income Top grade
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A+
Education Top grade
Source: Map AI Methodology
Population
| Metric | Naperville | Illinois Avg | U.S. Average |
|---|---|---|---|
| Population | 129,015 | 12,692,444 | 337,468,954 |
| Population density (per sq mi) | 3230.2 | 219.1 | 86.4 |
| Population growth (%/yr) | 0.36% | -0.16% | 0.59% |
| Median age | 40.6 | 37.4 | 37.3 |
| Households | 47,364 | 5,035,584 | 130,235,071 |
Population in Naperville grew by 17.0% from 2009 to 2024, reaching 129,015 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Naperville is Gen X, aged 45–60, at 23.2% of residents. That is 2.8 points above Illinois as a whole.
- Gen Z 13–28 25,649 19.9% -1.4 pts
- Millennials 29–44 28,586 22.2% +0.3 pts
- Gen X 45–60 29,966 23.2% +2.8 pts
- Boomers 61–79 18,246 14.1% -2.8 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Illinois, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.5% of the people living in Naperville and men 49.5%.
- Women 50.5% Illinois 50.6%
- Men 49.5% Illinois 49.4%
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Economy
Naperville has a the economy index of A+, which means it is exceptionally prosperous.
| Metric | Naperville | Illinois Avg | U.S. Average |
|---|---|---|---|
| Median household income | $151,334 | $84,042 | $80,455 |
| Income growth (%/yr) | 4.36% | 4.46% | 4.80% |
| Unemployment rate | 4.4% | 5.8% | 5.2% |
The median household income in Naperville is about 80% higher than in Illinois.
Housing
| Metric | Naperville | Illinois Avg | U.S. Average |
|---|---|---|---|
| Median home price | $353,146 | $149,936 | $248,835 |
| Median rent | $1,896 | $1,274 | $1,407 |
| Homeownership rate | 74.9% | 67.1% | 65.2% |
The median home price in Naperville is about 15.5 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,896 per month for that long.
Commute Time & Mobility
Commuters in Naperville spend about 52 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 218 hours, about 9.1 full days, spent commuting.
| Metric | Naperville | Illinois Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 26.2 | 23.6 | 22.4 |
| Round-trip commute (min) | 52.4 | 47.3 | 44.8 |
| Yearly time spent (hours) | 218 | 197 | 187 |
| Estimated yearly cost | $6,772 | $6,104 | $5,790 |
| Work from home | 30.1% | 15.9% | 15.0% |
| Highway traffic (vehicles/day) | 26,988 | 7,977 | 8,813 |
| Local road traffic (vehicles/day) | 4,171 | 1,547 | 1,355 |
The average commute time in Naperville is 26 minutes, longer than the 24 minutes in Illinois.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Naperville has a education index of A+, which means it is exceptionally educated.
| Metric | Naperville | Illinois Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 65.1% | 34.1% | 31.6% |
| Average household size | 2.67 | 2.46 | 2.53 |
Health
Naperville has a health index of A+, which means it is exceptionally healthy.
| Metric | Naperville | Illinois Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 81.8 | 77.9 | 78.3 |
| Self-rated poor health | 8.0% | 15.6% | 16.3% |
| Smokers | 10.3% | 19.2% | 19.0% |
Naperville, IL Compared With Nearby Cities
Naperville, IL is the 2nd largest of the 5 cities compared here, 129,015 residents against a local median of 60,747. Naperville, IL's median home price, at $353,146, runs 54% above the $228,794 typical of the cities around it.
Median household income tells the same story from another angle: $151,334 against a local median of $106,167, 43% above it. The one measure here that carries a verdict is median household income, and at 43% above the local median it puts Naperville, IL at the better end of the local range. The cities themselves spread $384,734 on median home price, so Naperville, IL sits at one end of an already wide local range rather than apart from it. Naperville, IL has the 2nd highest median home price of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Naperville, IL | 129,015 | $151,334 #1/5 | $353,146 #2/5 | 26.2 min #4/5 |
| Bolingbrook, IL | 74,594 | $107,929 | $205,512 | 26.6 min |
| Lisle, IL | 22,476 | $104,405 | $585,767 | 25.1 min |
| Wheaton, IL | 46,899 | $117,910 | $201,033 | 20.9 min |
| Aurora, IL | 168,587 | $92,311 | $252,075 | 23.2 min |
Frequently Asked Questions
Common questions about Naperville, Illinois.
How big is Naperville, Illinois by population?
About 129,015 people live in Naperville, Illinois, in 47,364 households of 2.7 people on average. The median age is 40.6, so residents are older than the U.S. median of 37.3 by about 3 years.
Is Naperville, Illinois mostly urban or rural?
Averaged over its land area, Naperville, Illinois has 3,230 people per square mile, a density typical of a city. That is about 37 times the U.S. average of 86.
Can a typical household afford a home in Naperville, Illinois?
The median home costs 2.3 times the median household income ($353,146 against $151,334), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,896 a month takes about 15% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
What share of adults in Naperville, Illinois have a college degree?
65.1% of adults in Naperville, Illinois hold a bachelor's degree or higher (about 7 in 10), well above the U.S. share of 31.6%.
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