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Living in Naperville

In Naperville, the median gross salary is €5,990 a month (2024).

There were 1,095 physicians per 100,000 residents in 2026. In July 2026, owner occupation was 74.8% and the vacancy rate was 4%. Its population was 150,692 in July 2026.

Last checked 2026-09-1937 sources

Population153,114people31 Dec 2025Official source · U.S. Census Bureau, Population Estimates Program
Median gross salary5,990EUR/month31 Dec 2024Official source · ACS 2024 1-year table-based Summary File, table B20002 (Median Earnings in the Past 12 Months (in 2024 inflation-adjusted dollars) by Sex for the Population 16 Years and Over with Earnings), place records
Median rent1,657EUR/month31 Dec 2024Independent source · Census Reporter mirror of ACS 2024 5-year tables
Unemployment rate4.54%31 Dec 2024Independent source · Census Reporter mirror of ACS 2024 5-year tables
Recorded crime967.3offences per 100,000country median 1,586 — 39% belowOfficial source · FBI Crime Data Explorer / Uniform Crime Reporting
PM2.5, annual mean8.13µg/m³country median 7.0 — 16% aboveOfficial source · EPA AQS annual PM2.5 monitor data 2024

Less recorded crime than 73% of American cities that publish it and dirtier air than 79% of American cities that publish it.

Which United States-wide rules apply when you move to Naperville?

National rules stay on the country page instead of being relabelled as city data.

Visa and entry rulesPassport-specific entry and national residence context.BenefitsCountry-wide eligibility and official application routes.Taxes in United StatesNational rates and thresholds that apply in Naperville.Healthcare eligibilityCountry-wide insurance and residence conditions.

Housing and cost

Median gross rent was US$1,885 per month, while the median home value was US$540,200 in July 2026. 39.5% of renter households spent at least 30% of income on housing in July 2026.

What recurs every month6 published recurring costs, € per month
Naperville recurring monthly costs, € per month

€ / month

Private kindergarten€1306
Transport pass€112
Utilities, 85 m² flat€102
Fitness club€61
Mobile plan, 10 GB€45
Internet, 60 Mbps€45

Supplemental estimate lane; these items are not official statistics.

MetricValuePeriodSource
Fitness club membership, monthly60.95 EUR/month31 Jul 2026Numbeo - Cost of Living in Naperville (Wayback Machine capture 20260309233842)33Supplemental estimate · Supplemental context
Internet, 60 Mbps unlimited44.62 EUR/month31 Jul 2026Numbeo - Cost of Living in Naperville (Wayback Machine capture 20260309233842)33Supplemental estimate · Supplemental context
Private kindergarten, monthly1,306 EUR/month31 Jul 2026Numbeo - Cost of Living in Naperville (Wayback Machine capture 20260309233842)33Supplemental estimate · Supplemental context
Mobile plan, 10 GB45.1 EUR/month31 Jul 2026Numbeo - Cost of Living in Naperville (Wayback Machine capture 20260309233842)33Supplemental estimate · Supplemental context
Monthly transport pass112.3 EUR/month31 Dec 2024Numbeo — Cost of Living in Naperville (Wayback capture 20241214154122)34Supplemental estimate · Supplemental context
Basic utilities, 85 m² home102.2 EUR/month31 Jul 2026Numbeo - Cost of Living in Naperville (Wayback Machine capture 20260309233842)33Supplemental estimate · Supplemental context
Median gross rent$1,885/month4 Jul 2026ACS median gross rent4Official
Households spending over 30% of income on rent39.49 %4 Jul 2026ACS median gross rent4Official
Housing vacancy rate (legacy series)4 %4 Jul 2026ACS median gross rent4Official
Average monthly rent (whole dwelling)1,899 EUR/month31 Dec 2020ACS 2020-2024 5-year table-based Summary File, tables B25065 (Aggregate Gross Rent) and B25063 (Gross Rent, units with cash rent)2Official
Median monthly rent1,657 EUR/month31 Dec 2024Census Reporter mirror of ACS 2024 5-year tables26Supplemental estimate · Supplemental context
Recorded property crimes865 offenses/year31 Dec 2025FBI CIUS Table 8 by City 2025 (CDE offenses-known-to-le-2025.zip)13Official

Is Naperville a good place to live?

There is no universal answer. The profile scores below show who the available published evidence may suit; they are a decision aid, not a personal recommendation.

Try your profile
Remote worker50%strong on work, weak on air quality · range 42–58%
Skilled employee55%strong on work, weak on safety · range 47–63%
Student47%strong on education, weak on work · range 38–56%
Family49%strong on family, weak on cost · range 41–57%
Retirement43%strong on legal route, weak on admin · range 34–52%

Worked out from these numbers

How international is the population?

22.1% of residents hold a foreign nationality — 33,896 of 153,114 people. This counts nationality, not place of birth, so long-settled residents who naturalised are not in it.

Work and income

Median household income was US$155,105 a year in July 2026.

Unemployment across cities in United StatesUnemployment in Naperville is 4.5%. Of 2,153 cities with data, 1,250 have unemployment of 0 to under 5%.

Unemployment rate (%)

MetricValuePeriodSource
Median household income155,105 USD/year4 Jul 2026ACS total population5Official
Households with cable, fibre or DSL broadband89.88 %4 Jul 2026ACS total population5Official
Households with a broadband subscription97.47 %4 Jul 2026ACS total population5Official
Households with internet but no subscription1.03 %4 Jul 2026ACS total population5Official
Households without internet1.42 %4 Jul 2026ACS total population5Official
Households with satellite internet5.22 %4 Jul 2026ACS total population5Official
Median gross salary5,990 EUR/month31 Dec 2024ACS 2024 1-year table-based Summary File, table B20002 (Median Earnings in the Past 12 Months (in 2024 inflation-adjusted dollars) by Sex for the Population 16 Years and Over with Earnings), place records3Official
Median gross salary (regional)4,043 EUR/month31 Dec 2025www.bls.gov25Official
Unemployment rate4.54 %31 Dec 2024Census Reporter mirror of ACS 2024 5-year tables26Supplemental estimate · Supplemental context

What does a salary buy in Naperville?

Take-home pay after tax, minus rent and the everyday bills this city publishes. Each line names its source.

Naperville median gross pay: €5,990 (ACS 2024 1-year table-based Summary File, table B20002 (Median Earnings in the Past 12 Months (in 2024 inflation-adjusted dollars) by Sex for the Population 16 Years and Over with Earnings), place records, 2024-12-31).
Left over each month€2,245of €4,449 take-home
  • Rent
  • Utilities
  • Transport
  • Internet
  • Mobile
  • Left over
Line-by-line breakdown and sources
Each month€
Take-home payOECD Taxing Wages 2025, single, no children. Includes central and local income tax and employee social contributions; euro amounts at the ECB average for 2026-08.€4,449
Rentaverage rent of a whole dwelling · official · ACS 2020-2024 5-year table-based Summary File, tables B25065 (Aggregate Gross Rent) and B25063 (Gross Rent, units with cash rent) · 2020-12-31− €1,899
Public transport pass€112 · market price · Numbeo · 2024-12-31− €112
Utilities, 85 m²€102 · market price · Numbeo - Cost of Living in Naperville (Wayback Machine capture 20260309233842) · 2026-07-31− €102
Internet€45 · market price · Numbeo - Cost of Living in Naperville (Wayback Machine capture 20260309233842) · 2026-07-31− €45
Mobile plan€45 · market price · Numbeo - Cost of Living in Naperville (Wayback Machine capture 20260309233842) · 2026-07-31− €45
Left over€2,245
Take-home pay for other salaries and households Compare with another city Check a job offer in Naperville Salary needed to live in Naperville

Public employment service

No exact public employment office is currently linked to Naperville. The verified national service may still offer online registration, job search or an official office finder.

Country-level information

American Job Centers — Public employment service

U.S. Department of Labor Employment and Training Administration

Job Search
Open official service
Open the United States service overview

Country-level service information is not treated as proof of a physical office in Naperville. Sources checked through 10 Aug 2026.

Family and education

MetricValuePeriodSource
Residents with high school education or higher97.3 %4 Jul 2026ACS median gross rent4Official
Schools125 schools30 Jun 2026NCES CCD public school count16Official source, approximated value · Supplemental context · school district
School enrolment, share of residents27.83 %4 Jul 2026ACS median gross rent4Official

Healthcare

MetricValuePeriodSource
Mental health provider ratio31 ratio30 Jun 2026HRSA mental health provider ratio15Official
Primary care doctors per 100,000 residents1,095 per 100,000 people30 Jun 2026HRSA mental health provider ratio15Official
Preventable hospitalizations3,749 per 100,000 people30 Jun 2026HRSA mental health provider ratio15Official
GP practices327 count13 Sept 2026NPPES Data Dissemination V.2 — September 202620Official
Hospitals2 count30 Sept 2026CMS Hospital General Information9Official
Pharmacies35 count13 Sept 2026NPPES Data Dissemination V.2 — September 202620Official
Physicians per 100,000 residents549.3 per 100,00013 Sept 2026NPPES Data Dissemination V.2 — September 202620Official

Yes — migrants can receive medical care in Naperville when the national insurance or residence conditions are met.

Healthcare access follows the country-wide insurance rules; local capacity facts remain city data and are not used as proof of eligibility.

Open the official coverage guide
Country rule verified 2026-08-03.

Safety

Recorded crime across major citiesNaperville highlighted among comparable cities
Recorded crime across major cities with Naperville highlighted

recorded incidents per 100k residents

Philadelphia5,457
Houston5,442
San Antonio5,218
Chicago4,012
Dallas4,010
Austin3,709
Fort Worth3,158
Phoenix3,125
New York City3,039
Los Angeles2,212
San Diego2,082
Naperville967
MetricValuePeriodSource
Burglaries per 100,000 residents67.1 incidents per 100,00031 Dec 2024US-FBI-CDE-IL0221400-202423Official
Recorded incidents per 100,000 residents967.3 offences per 100,000country median 1,58631 Dec 2024FBI Crime Data Explorer / Uniform Crime Reporting14Official
Violent crime per 100,000 residents85.7 incidents per 100,00031 Dec 2024US-FBI-CDE-IL0221400-202424Official
Recorded violent crimes108 offenses/year31 Dec 2025FBI CIUS Table 8 by City 2025 (CDE offenses-known-to-le-2025.zip)13Official

Mobility and administration

MetricValuePeriodSource
Average commute time30.46 minutes4 Jul 2026ACS total population5Official
Workers commuting by bicycle0.15 %4 Jul 2026ACS total population5Official
Workers commuting by public transport5.35 %4 Jul 2026ACS total population5Official
Workers walking to work1.3 %4 Jul 2026ACS total population5Official
Nearest airportDPA3 Aug 2026OurAirports21Official
Distance to nearest airport16 km3 Aug 2026OurAirports21Official

Language courses and integration

No exact city-level course record is currently published for Naperville. These verified national programmes may still apply; use the official programme page to check local availability.

Country-level information

Adult Education and English Language Acquisition (AEFLA) — State Language Course

U.S. Department of Education

For adult learners, adult English-language learners.

EnglishIn Person, Online, HybridCost varies
Open official information

USCIS English and citizenship class finder — Civic Orientation

U.S. Citizenship and Immigration Services

For immigrants, future citizens.

EnglishIn Person, OnlineCost varies
Open official information
Open the full United States section
National programme information is not treated as proof of a course location in Naperville.

Find courses near Naperville

Climate and air quality

Temperature through the yearAverage daytime high and night-time low, °C
Rainfall through the yearAverage monthly precipitation, mm
Air quality vs health guidelinesAnnual means against WHO 2021 guidelines and EU legal limits

City values from the published air-quality observations. WHO 2021 guidelines and EU limit values are published constants.

PM2.5 across cities in United StatesAnnual PM2.5 in Naperville is 8.1 µg/m³. Of 968 cities with data, 261 have annual PM2.5 of 6 to under 7 µg/m³.

Annual PM2.5 (µg/m³)

MetricValuePeriodSource
PM2.5 — annual mean8.13 µg/m³country median 7.031 Dec 2024EPA AQS annual PM2.5 monitor data 202411Official
Average daytime high by monthJan -0.833 · Feb 1.61 · Mar 8.33 · Apr 15.44 · May 21.72 · Jun 26.94 · Jul 28.89 · Aug 27.83 · Sep 24.33 · Oct 17.11 · Nov 8.78 · Dec 2 °C1991–2020NOAA U.S. Monthly Climate Normals 1991-2020 — station USC00110338 (AURORA WATER)19Official · nearest-station reading
Average night-time low by monthJan -8.89 · Feb -6.94 · Mar -1.72 · Apr 4.06 · May 10.06 · Jun 15.61 · Jul 18.22 · Aug 17.28 · Sep 12.94 · Oct 6.17 · Nov -0.167 · Dec -5.67 °C1991–2020NOAA U.S. Monthly Climate Normals 1991-2020 — station USC00110338 (AURORA WATER)19Official · nearest-station reading
Average temperature by monthJan -4.94 · Feb -3.11 · Mar 2.61 · Apr 8.72 · May 15 · Jun 20.72 · Jul 22.83 · Aug 21.89 · Sep 17.89 · Oct 10.83 · Nov 4 · Dec -1.89 °C31 Dec 1991NOAA National Centers for Environmental Information18Official
Average precipitation by monthJan 47.24 · Feb 46.48 · Mar 59.69 · Apr 102.9 · May 123.4 · Jun 114.3 · Jul 106.4 · Aug 98.04 · Sep 85.6 · Oct 93.98 · Nov 68.83 · Dec 55.63 mm1991–2020NOAA U.S. Monthly Climate Normals 1991-2020 — station USC00110338 (AURORA WATER)19Official · nearest-station reading
PM2.5, highest monitored reading170.6 µg/m³1 Jul 2026EPA AirData PM2.5 annual mean10Official source, approximated value · Supplemental context · county
PM2.5, annual mean9.74 µg/m³1 Jul 2026EPA AirData PM2.5 annual mean10Official source, approximated value · Supplemental context · county
PM2.5 monitoring sites6 monitors1 Jul 2026EPA AirData PM2.5 annual mean10Official source, approximated value · Supplemental context · county
Annual precipitation954.8 mm30 Jun 2026NOAA GHCN-Daily climate normals17Official source, approximated value · Supplemental context · station observation
Maximum July temperature22.45 °C30 Jun 2026NOAA GHCN-Daily climate normals17Official source, approximated value · Supplemental context · station observation
Average annual temperature10.61 °C30 Jun 2026NOAA GHCN-Daily climate normals17Official source, approximated value · Supplemental context · station observation
Minimum January temperature-1.37 °C30 Jun 2026NOAA GHCN-Daily climate normals17Official source, approximated value · Supplemental context · station observation

Similar climate. In United States: Joliet ±0.2 °C. Elsewhere: Markham (Canada) ±1.5 °C, Mississauga (Canada) ±1.5 °C, Richmond Hill (Canada) ±1.5 °C, Vaughan (Canada) ±1.5 °C, Chatham-Kent (Canada) ±1.6 °C. Twenty closest, compared month by month

Monthly highs and lows against the 1991–2020 station normals of the nearest station; ± is the average monthly difference.

Population and city profile

Who lives hereResidents by nationality, % of population

Calculated from the population and foreign-resident facts on this page.

MetricValuePeriodSource
Foreign-resident share22.49 %31 Dec 2020ACS 2020-2024 5-year table-based Summary File, table B05002 (Place of Birth by Nativity and Citizenship Status), place records1Official
Foreign residents33,896 people31 Dec 2020ACS 2020-2024 5-year table-based Summary File, table B05002 (Place of Birth by Nativity and Citizenship Status), place records1Official
Population density1,502 people/km²31 Dec 2025Census Reporter / U.S. Census Bureau8Official
Population153,114 people31 Dec 2025U.S. Census Bureau, Population Estimates Program22Official
Population covered by crime statistics154,062 people31 Dec 2025FBI CIUS Table 8 by City 2025 (CDE offenses-known-to-le-2025.zip)13Official

Additional context

MetricValuePeriodSource
Median home value540,200 USD4 Jul 2026ACS median gross rent4Official
Owner-occupied homes74.79 %4 Jul 2026ACS median gross rent4Official
Labour force participation rate67.78 %4 Jul 2026ACS total population5Official
Residents born abroad22.49 %4 Jul 2026ACS total population5Official
Naturalized citizens, share of residents12.46 %4 Jul 2026ACS total population5Official
Non-citizens, share of residents10.03 %4 Jul 2026ACS total population5Official
Flu vaccination coverage61.86 %30 Jun 2026CDC BRFSS flu vaccination coverage6Official
Mammography screening coverage76.2 %30 Jun 2026CDC mammography screening rate7Official
Residents without health insurance2.44 %4 Jul 2026ACS median gross rent4Official
Residents with a bachelor's degree or higher72.5 %4 Jul 2026ACS median gross rent4Official
Crime reporting agencies1 agencies30 Jun 2026FBI CDE/UCR crime statistics12Official source, approximated value · Supplemental context · agency service area
Households with a vehicle available96.21 %4 Jul 2026ACS median gross rent4Official
Public transport agencies in the National Transit Database0 agencies4 Jul 2026ACS total population5Official
Workers aged 16 and over75,830 workers4 Jul 2026ACS total population5Official
Workers mainly working from home31.13 %4 Jul 2026ACS total population5Official
Households using cellular data plans93.14 %4 Jul 2026ACS total population5Official

Alternatives for people set on Naperville

Three places for the three reasons people leave a city on the shortlist: stay in the region, stay in the country, or keep the budget and change the country. A percentage appears only where both cities publish that metric from the same source, period and grain. Distances are straight lines — travel times are not collected yet.

Wheaton as a Naperville alternative in the same region

13 km away, better on 3 of 5 metrics measured the same way, worse on 1. Median gross pay, city and foreign residents cannot be compared like for like.

  • Recorded crime, per 100k: 591 Wheaton vs 967 Naperville−39%
  • Median gross pay, city: €4,017 Wheaton vs €5,990 Napervilleno percentage
  • Residents: 54,065 Wheaton vs 153,114 Naperville−65%
  • Basic utilities, 85 m²: €151 Wheaton vs €102 Naperville+48%
  • Unemployment: 3.7% Wheaton vs 4.5% Naperville−18%
  • Foreign residents: 4.0% Wheaton vs 22.5% Napervilleno percentage
  • Nearest airport: 13.0 km Wheaton vs 16.0 km Naperville−19%
Full comparisonMore about Wheaton

Bellevue as a Naperville alternative in the same country

A move, not a commute, at 2744 km, better on 5 of 7 metrics measured the same way, worse on 2.

  • Recorded crime, per 100k: 3,478 Bellevue vs 967 Naperville+260%
  • Foreign residents: 43.5% Bellevue vs 22.5% Naperville+93%
  • Median gross pay, city: €7,704 Bellevue vs €5,990 Naperville+29%
  • Median gross pay, region: €5,365 Bellevue vs €4,043 Naperville+33%
  • Basic utilities, 85 m²: €174 Bellevue vs €102 Naperville+71%
  • Nearest airport: 11.0 km Bellevue vs 16.0 km Naperville−31%
  • Unemployment: 4.2% Bellevue vs 4.5% Naperville−7%
Full comparisonMore about Bellevue

Cities near Naperville

Published cities within 25 km, nearest first. Distances are straight-line.

Aurora 11.1 km away
Salary
3,226 EUR/monthMedian gross salary · 2024-12-31

Alternative cities in United States

Other cities in United States to compare with Naperville, nearest in population first.

All United States cities
Bridgeport152,273 residentsJoliet152,241 residentsBellevue154,193 residentsSpringfield154,702 residentsMesquite150,693 residentsMcAllen150,640 residents

How does Naperville compare?

Pick a city. The answer appears here and the address bar keeps it, so the comparison can be shared; the page stays Naperville's.

Open the full comparison

Naperville in rankings

#9 of 30 in Most international cities in United States #16 of 30 in US cities with the lowest uninsured share

Put Naperville's key facts on your site — a card with this page's figures and a link back, free under CC BY 4.0.

Common questions

Answered from the published values on this page, each with its source and date.

What is the typical salary around Naperville?

The median gross salary is 4,043 EUR/month. Source: www.bls.gov.

What is the unemployment rate in Naperville?

The unemployment rate is 4.54 %. This is a supplemental estimate, not an official municipal measurement. Source: Census Reporter mirror of ACS 2024 5-year tables.

Is the air quality good in Naperville?

The annual PM2.5 mean is 8.13 µg/m³. The WHO 2021 guideline is 5 µg/m³ and the EU limit value is 25 µg/m³, so this reading is above the WHO guideline but within the EU limit. Source: EPA AQS annual PM2.5 monitor data 2024.

How safe is Naperville?

Police recorded 967.3 offences per 100,000. This counts all offences, so it is not comparable with a violent-crime-only rate from another source. Source: FBI Crime Data Explorer / Uniform Crime Reporting.

How many people live in Naperville?

The published population is 153,114 people. Source: U.S. Census Bureau, Population Estimates Program.

How many foreign residents live in Naperville?

33,896 residents hold a foreign nationality. Source: ACS 2020-2024 5-year table-based Summary File, table B05002 (Place of Birth by Nativity and Citizenship Status), place records.

Is Naperville a good place to live?

Naperville may suit different people for different reasons. The page's profile scores compare published cost, work, housing, safety, healthcare and other available factors; they are a decision aid, not a universal recommendation.

Which cities are near Naperville?

Lisle, Warrenville, Bolingbrook, Woodridge, Aurora are near Naperville. Typed relationship labels are shown where published; other rows use straight-line distance from admitted coordinates.

Cite this page

Open a format to select or copy this ImmigrationDB compilation citation. The native disclosure and text fallback work without JavaScript.

APA citation
ImmigrationDB. (2026, October 16). Naperville, United States: population, rent, salary, jobs [ImmigrationDB compilation; version 7fee9c7f4e381129128c3ab09e51492b]. ImmigrationDB. https://immigrationdb.com/cities/us/naperville/ Retrieved 2026-10-16. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/
BibTeX citation
@misc{immigrationdb_immigrationdb_naperville-united-states-population-rent-salary-jobs_9109e0fc64e7,
  author = {ImmigrationDB},
  title = {Naperville, United States: population, rent, salary, jobs},
  publisher = {ImmigrationDB},
  year = {2026},
  date = {2026-10-16},
  version = {7fee9c7f4e381129128c3ab09e51492b},
  url = {https://immigrationdb.com/cities/us/naperville/},
  note = {Retrieved 2026-10-16. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}
Markdown citation
[Naperville, United States: population, rent, salary, jobs](https://immigrationdb.com/cities/us/naperville/) — ImmigrationDB; ImmigrationDB; version 7fee9c7f4e381129128c3ab09e51492b; retrieved 2026-10-16; built 2026-10-16.

This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately. View the underlying source records.

Sources

JSON Markdown
  1. ACS 2020-2024 5-year table-based Summary File, table B05002 (Place of Birth by Nativity and Citizenship Status), place records www2.census.gov · checked 2026-09-18
  2. ACS 2020-2024 5-year table-based Summary File, tables B25065 (Aggregate Gross Rent) and B25063 (Gross Rent, units with cash rent) www2.census.gov · checked 2026-09-19
  3. ACS 2024 1-year table-based Summary File, table B20002 (Median Earnings in the Past 12 Months (in 2024 inflation-adjusted dollars) by Sex for the Population 16 Years and Over with Earnings), place records www2.census.gov · checked 2026-09-18
  4. ACS median gross rent api.censusreporter.org · checked 2026-07-04
  5. ACS total population api.censusreporter.org · checked 2026-07-04
  6. CDC BRFSS flu vaccination coverage data.cdc.gov · checked 2026-06-30
  7. CDC mammography screening rate data.cdc.gov · checked 2026-06-30
  8. Census Reporter / U.S. Census Bureau api.censusreporter.org · checked 2026-08-03
  9. CMS Hospital General Information data.cms.gov · checked 2026-09-15
  10. EPA AirData PM2.5 annual mean aqs.epa.gov · checked 2026-07-01
Show 27 more sources
  1. EPA AQS annual PM2.5 monitor data 2024 aqs.epa.gov · checked 2026-07-26
  2. FBI CDE/UCR crime statistics cde.ucr.cjis.gov · checked 2026-06-30
  3. FBI CIUS Table 8 by City 2025 (CDE offenses-known-to-le-2025.zip) cde.ucr.cjis.gov · checked 2026-09-05
  4. FBI Crime Data Explorer / Uniform Crime Reporting cde.ucr.cjis.gov · checked 2026-08-04
  5. HRSA mental health provider ratio data.hrsa.gov · checked 2026-06-30
  6. NCES CCD public school count nces.ed.gov · checked 2026-06-30
  7. NOAA GHCN-Daily climate normals ncei.noaa.gov · checked 2026-06-30
  8. NOAA National Centers for Environmental Information ncei.noaa.gov · checked 2026-08-03
  9. NOAA U.S. Monthly Climate Normals 1991-2020 — station USC00110338 (AURORA WATER) NOAA U.S. Monthly Climate Normals 1991-2020 · ncei.noaa.gov · checked 2026-07-31
  10. NPPES Data Dissemination V.2 — September 2026 NPPES Data Dissemination V.2 · download.cms.gov · checked 2026-09-18
  11. OurAirports davidmegginson.github.io · checked 2026-08-03
  12. U.S. Census Bureau, Population Estimates Program www2.census.gov · checked 2026-08-03
  13. US-FBI-CDE-IL0221400-2024 cde.ucr.cjis.gov · checked 2026-09-15
  14. US-FBI-CDE-IL0221400-2024 cde.ucr.cjis.gov · checked 2026-09-15
  15. www.bls.gov bls.gov · checked 2026-08-27
  16. Census Reporter mirror of ACS 2024 5-year tables api.censusreporter.org · checked 2026-07-26
  17. Coordinate identity evidence wikidata.org · checked 2026-09-06
  18. Coordinate identity evidence wikidata.org · checked 2026-09-06
  19. Coordinate identity evidence wikidata.org · checked 2026-09-06
  20. Coordinate identity evidence wikidata.org · checked 2026-09-06
  21. Coordinate identity evidence wikidata.org · checked 2026-09-06
  22. Coordinate identity evidence wikidata.org · checked 2026-09-06
  23. Numbeo - Cost of Living in Naperville (Wayback Machine capture 20260309233842) numbeo.com · checked 2026-07-31
  24. Numbeo — Cost of Living in Naperville (Wayback capture 20241214154122) Numbeo · web.archive.org · checked 2026-08-01
  25. Wikidata identity and coordinates — Q1007011 Wikidata identity and coordinates · wikidata.org · checked 2026-09-05
  26. Wikidata identity and coordinates — Q1012403 Wikidata identity and coordinates · wikidata.org · checked 2026-09-05
  27. Wikidata identity and coordinates — Q1020589 Wikidata identity and coordinates · wikidata.org · checked 2026-09-05

Spotted a number that looks wrong? Every value here carries its source and date — tell us what you found and we will re-check it against the source.