Downey CA vs Naperville IL — Cost of Living, Crime & Income Comparison 2026
Updated May 2026 · Source: US Census ACS 5-Year (2023), FBI CDE (2023), BLS OEWS (2024)
Downey, CA
California · Population: 114,617
- Median HH Income$68,378
- Median Home Price$888,820
- Unemployment6.0%
- Bachelor's+10.6%
Naperville, IL
Illinois · Population: 149,424
- Median HH Income$150,937
- Median Home Price$618,452
- Unemployment4.2%
- Bachelor's+71.7%
Detailed Comparison
Demographics
Population
Downey
114,617
Naperville
149,424
Naperville +
Pop. Density / sq mi
Lower = more space
Downey
N/A
Naperville
N/A
Median Age
Downey
34.0
Downey +
Naperville
40.1
Foreign Born
Downey
39.4%
Downey +
Naperville
22.6%
White
Downey
21.0%
Naperville
64.5%
Naperville +
Black
Downey
0.4%
Naperville
4.4%
Naperville +
Asian
Downey
1.5%
Naperville
21.8%
Naperville +
Hispanic
Downey
95.6%
Downey +
Naperville
7.4%
Spanish at Home
Downey
N/A
Naperville
N/A
| Metric | Downey, CA | Naperville, IL | Better |
|---|---|---|---|
| Population | 114,617 | 149,424 | Naperville + |
| Pop. Density / sq miLower = more space | N/A | N/A | - |
| Median Age | 34.0 | 40.1 | Downey + |
| Foreign Born | 39.4% | 22.6% | Downey + |
| White | 21.0% | 64.5% | Naperville + |
| Black | 0.4% | 4.4% | Naperville + |
| Asian | 1.5% | 21.8% | Naperville + |
| Hispanic | 95.6% | 7.4% | Downey + |
| Spanish at Home | N/A | N/A | - |
Economy
Median HH Income
Downey
$68,378
Naperville
$150,937
Naperville +
Per Capita Income
Downey
$23,265
Naperville
$71,011
Naperville +
Per Capita Personal Income (MSA)
BEA MSA-level
Downey
$77,230
Downey +
Naperville
$68,110
Unemployment Rate
Downey
6.0%
Naperville
4.2%
Naperville +
Poverty Rate
Downey
16.6%
Naperville
4.4%
Naperville +
Bachelor's Degree+
Downey
10.6%
Naperville
71.7%
Naperville +
| Metric | Downey, CA | Naperville, IL | Better |
|---|---|---|---|
| Median HH Income | $68,378 | $150,937 | Naperville + |
| Per Capita Income | $23,265 | $71,011 | Naperville + |
| Per Capita Personal Income (MSA)BEA MSA-level | $77,230 | $68,110 | Downey + |
| Unemployment Rate | 6.0% | 4.2% | Naperville + |
| Poverty Rate | 16.6% | 4.4% | Naperville + |
| Bachelor's Degree+ | 10.6% | 71.7% | Naperville + |
Housing
Median Home Value
Zillow ZHVI / Census ACS
Downey
$888,820
Naperville
$618,452
Naperville +
Homeownership Rate
Downey
33.7%
Naperville
74.3%
Naperville +
| Metric | Downey, CA | Naperville, IL | Better |
|---|---|---|---|
| Median Home ValueZillow ZHVI / Census ACS | $888,820 | $618,452 | Naperville + |
| Homeownership Rate | 33.7% | 74.3% | Naperville + |
Safety
Violent Crime / 100K
FBI CDE (state-level est.)
Downey
503
Naperville
344
Naperville +
Property Crime / 100K
FBI CDE (state-level est.)
Downey
2388
Naperville
1842
Naperville +
| Metric | Downey, CA | Naperville, IL | Better |
|---|---|---|---|
| Violent Crime / 100KFBI CDE (state-level est.) | 503 | 344 | Naperville + |
| Property Crime / 100KFBI CDE (state-level est.) | 2388 | 1842 | Naperville + |
Health
Obesity Rate
CDC PLACES
Downey
27.6%
Downey +
Naperville
27.9%
Diabetes Rate
CDC PLACES
Downey
11.8%
Naperville
8.7%
Naperville +
Poor Mental Health
CDC PLACES — 14+ days/month
Downey
16.1%
Naperville
12.3%
Naperville +
No Health Insurance
CDC PLACES
Downey
14.8%
Naperville
4.6%
Naperville +
Binge Drinking
CDC PLACES
Downey
16.1%
Downey +
Naperville
16.7%
Current Smokers
CDC PLACES
Downey
9.9%
Naperville
7.4%
Naperville +
| Metric | Downey, CA | Naperville, IL | Better |
|---|---|---|---|
| Obesity RateCDC PLACES | 27.6% | 27.9% | Downey + |
| Diabetes RateCDC PLACES | 11.8% | 8.7% | Naperville + |
| Poor Mental HealthCDC PLACES — 14+ days/month | 16.1% | 12.3% | Naperville + |
| No Health InsuranceCDC PLACES | 14.8% | 4.6% | Naperville + |
| Binge DrinkingCDC PLACES | 16.1% | 16.7% | Downey + |
| Current SmokersCDC PLACES | 9.9% | 7.4% | Naperville + |
Climate
Avg Annual Temp
NOAA 1991–2020 normal
Downey
N/A
Naperville
N/A
Annual Precipitation
NOAA 1991–2020 normal
Downey
14.3 in
Naperville
N/A
| Metric | Downey, CA | Naperville, IL | Better |
|---|---|---|---|
| Avg Annual TempNOAA 1991–2020 normal | N/A | N/A | - |
| Annual PrecipitationNOAA 1991–2020 normal | 14.3 in | N/A | - |
Air Quality
PM2.5 Annual Avg
EPA AQS (state-level est.)
Downey
7.9 µg/m³
Downey +
Naperville
9.4 µg/m³
Good Air Days
AQI ≤ 50
Downey
75.0%
Downey +
Naperville
55.0%
| Metric | Downey, CA | Naperville, IL | Better |
|---|---|---|---|
| PM2.5 Annual AvgEPA AQS (state-level est.) | 7.9 µg/m³ | 9.4 µg/m³ | Downey + |
| Good Air DaysAQI ≤ 50 | 75.0% | 55.0% | Downey + |
Commute
Mean Commute Time
Census ACS
Downey
33.1 min
Downey +
Naperville
33.8 min
| Metric | Downey, CA | Naperville, IL | Better |
|---|---|---|---|
| Mean Commute TimeCensus ACS | 33.1 min | 33.8 min | Downey + |
Which City is Right for You?
Naperville leads in median household income at $150,937, while naperville offers more affordable housing with a median home price of $618,452. On public safety, Naperville is safer with a violent crime rate of 344 per 100,000 residents, compared to 503 in Downey. Naperville has a lower unemployment rate at 4.2%, and Downey has cleaner air (PM2.5 avg 7.9 µg/m³). For overall health outcomes, Downey scores better with a lower obesity rate of 27.6%.
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