Naperville, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Naperville, Illinois is 149,424 as of the 2023 American Community Survey, making it the 4th-largest city in Illinois. The median household income is $150,937, the median home value is $509,900, and the median age is 40.1.
The population has grown 7.5% since 2010 (142,402 → 153,124).
149,424
Population
3797
People / sq mi
$150,937
Median Income
$509,900
Median Home Value
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Naperville covers 39.4 sq mi of land at 3797 people per square mile.
About Naperville, IL
Educational attainment is the headline number in Naperville: 71.7% of adults 25 and older have a four-year degree. With 149,424 residents, Naperville is a city in Illinois. That makes it one of the ten largest cities in Illinois in the country, at #4 by population.
Earnings sit at the high end: a median household income of $150,937, above the US median of $78,538. Poverty is relatively low for US cities at 3.0%, below the national 12.4%. The median home value is $509,900, with typical rent around $1,852.
The population is unusually well-credentialed for US cities — 71.7% of adults have a four-year degree, above the national 35.0%. Remote work is widespread — 27.3% of workers stay home, above the national 14.0%, and the average commute runs about 31 minutes each way.
The education numbers are the throughline: a college-heavy population in Naperville usually coincides with higher incomes and a workforce concentrated in professional and information industries.
Naperville city Population History (2010-2024)
The city of Naperville city had a population of 142,402 in 2010 and 153,124 in 2024, a 7.5% growth over 14 years. The peak was 153,124 in 2024. Average annual growth rate: 0.52%.
153,124
Population (2024)
142,402
Population (2010)
153,124
Peak (2024)
0.52%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 142,402 |
| 2011 | 143,205 |
| 2012 | 144,017 |
| 2013 | 144,892 |
| 2014 | 146,193 |
| 2015 | 146,975 |
| 2016 | 147,192 |
| 2017 | 147,619 |
| 2018 | 148,090 |
| 2019 | 148,449 |
| 2020 | 149,434 |
| 2021 | 149,535 |
| 2022 | 150,355 |
| 2023 | 151,166 |
| 2024 | 153,124 |
Race & Ethnicity
| White | 64.5% |
| Black or African American | 4.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Economy & Income
$150,937
Median Household Income
$71,011
Per Capita Income
3.0%
Poverty Rate
2.9%
Unemployment Rate
Housing
$509,900
Median Home Value
$1,852
Median Rent
74.3%
Owner-Occupied
Education
97.2%
High School+
71.7%
Bachelor's+
Commute
6.2%
Drive Alone
58.9%
Public Transit
27.3%
Work From Home
31.4 min
Avg Commute
Community Profile
22.6%
Foreign Born
72.8%
Non-English at Home
3.1%
Veterans
7.1%
With Disability
97.5%
Health Insurance
98.6%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 23.0% |
| Finance, Insurance & Real Estate | 20.2% |
| Information | 10.8% |
| Manufacturing | 10.3% |
| Education, Health Care & Social Services | 7.2% |
| Retail Trade | 5.3% |
| Arts, Entertainment & Food Services | 3.9% |
| Construction | 3.0% |
| Public Administration | 2.5% |
| Transportation & Warehousing | 2.3% |
| Agriculture & Mining | 0.2% |
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City rankings
Common questions about Naperville, IL
Frequently Asked Questions
Naperville, Illinois has a population of 149,424 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 4th-largest city in Illinois.
The median household income in Naperville, Illinois is $150,937, with 3.0% of residents living below the federal poverty level.
The median home value in Naperville, Illinois is $509,900, with median monthly rent at $1,852 and a homeownership rate of 74.3%.
The median age in Naperville, Illinois is 40.1 years. The population is 49.6% male and 50.4% female.
The population has grown 7.5% since 2010 (142,402 → 153,124).
Naperville city, IL Climate
Naperville city, IL has an average annual temperature of 9.8°C (50°F) and receives about 944 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.8°C
Avg Temp
944
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -6° / 22° | 40 mm |
| February | -3° / 27° | 37 mm |
| March | 3° / 38° | 67 mm |
| April | 9° / 49° | 98 mm |
| May | 16° / 60° | 97 mm |
| June | 21° / 70° | 105 mm |
| July | 24° / 74° | 98 mm |
| August | 22° / 72° | 102 mm |
| September | 18° / 65° | 94 mm |
| October | 12° / 53° | 68 mm |
| November | 4° / 40° | 77 mm |
| December | -3° / 27° | 61 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Naperville city, IL
The most comfortable months to visit Naperville city, IL are typically June, August and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -10°C low). June is usually the wettest month.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.