St. Charles MO vs Sunnyvale CA — Cost of Living, Crime & Income Comparison 2026
Updated May 2026 · Source: US Census ACS 5-Year (2023), FBI CDE (2023), BLS OEWS (2024)
St. Charles, MO
Missouri · Population: 71,542
- Median HH Income$55,578
- Median Home Price$144,200
- Unemployment4.7%
- Bachelor's+22.7%
Sunnyvale, CA
California · Population: 153,455
- Median HH Income$181,862
- Median Home Price$2,144,024
- Unemployment4.1%
- Bachelor's+69.2%
Detailed Comparison
Demographics
Population
St. Charles
71,542
Sunnyvale
153,455
Sunnyvale +
Pop. Density / sq mi
Lower = more space
St. Charles
N/A
Sunnyvale
N/A
Median Age
St. Charles
37.9
Sunnyvale
35.1
Sunnyvale +
Foreign Born
St. Charles
4.2%
Sunnyvale
49.4%
Sunnyvale +
White
St. Charles
80.4%
St. Charles +
Sunnyvale
30.4%
Black
St. Charles
6.7%
St. Charles +
Sunnyvale
1.5%
Asian
St. Charles
1.4%
Sunnyvale
49.4%
Sunnyvale +
Hispanic
St. Charles
7.7%
Sunnyvale
16.7%
Sunnyvale +
Spanish at Home
St. Charles
N/A
Sunnyvale
N/A
| Metric | St. Charles, MO | Sunnyvale, CA | Better |
|---|---|---|---|
| Population | 71,542 | 153,455 | Sunnyvale + |
| Pop. Density / sq miLower = more space | N/A | N/A | - |
| Median Age | 37.9 | 35.1 | Sunnyvale + |
| Foreign Born | 4.2% | 49.4% | Sunnyvale + |
| White | 80.4% | 30.4% | St. Charles + |
| Black | 6.7% | 1.5% | St. Charles + |
| Asian | 1.4% | 49.4% | Sunnyvale + |
| Hispanic | 7.7% | 16.7% | Sunnyvale + |
| Spanish at Home | N/A | N/A | - |
Economy
Median HH Income
St. Charles
$55,578
Sunnyvale
$181,862
Sunnyvale +
Per Capita Income
St. Charles
$31,499
Sunnyvale
$95,752
Sunnyvale +
Per Capita Personal Income (MSA)
BEA MSA-level
St. Charles
$58,527
Sunnyvale
$77,230
Sunnyvale +
Unemployment Rate
St. Charles
4.7%
Sunnyvale
4.1%
Sunnyvale +
Poverty Rate
St. Charles
18.7%
Sunnyvale
5.6%
Sunnyvale +
Bachelor's Degree+
St. Charles
22.7%
Sunnyvale
69.2%
Sunnyvale +
| Metric | St. Charles, MO | Sunnyvale, CA | Better |
|---|---|---|---|
| Median HH Income | $55,578 | $181,862 | Sunnyvale + |
| Per Capita Income | $31,499 | $95,752 | Sunnyvale + |
| Per Capita Personal Income (MSA)BEA MSA-level | $58,527 | $77,230 | Sunnyvale + |
| Unemployment Rate | 4.7% | 4.1% | Sunnyvale + |
| Poverty Rate | 18.7% | 5.6% | Sunnyvale + |
| Bachelor's Degree+ | 22.7% | 69.2% | Sunnyvale + |
Housing
Median Home Value
Zillow ZHVI / Census ACS
St. Charles
$144,200
St. Charles +
Sunnyvale
$2,144,024
Homeownership Rate
St. Charles
61.4%
St. Charles +
Sunnyvale
43.8%
| Metric | St. Charles, MO | Sunnyvale, CA | Better |
|---|---|---|---|
| Median Home ValueZillow ZHVI / Census ACS | $144,200 | $2,144,024 | St. Charles + |
| Homeownership Rate | 61.4% | 43.8% | St. Charles + |
Safety
Violent Crime / 100K
FBI CDE (state-level est.)
St. Charles
501
St. Charles +
Sunnyvale
503
Property Crime / 100K
FBI CDE (state-level est.)
St. Charles
2418
Sunnyvale
2388
Sunnyvale +
| Metric | St. Charles, MO | Sunnyvale, CA | Better |
|---|---|---|---|
| Violent Crime / 100KFBI CDE (state-level est.) | 501 | 503 | St. Charles + |
| Property Crime / 100KFBI CDE (state-level est.) | 2418 | 2388 | Sunnyvale + |
Health
Obesity Rate
CDC PLACES
St. Charles
35.9%
Sunnyvale
19.7%
Sunnyvale +
Diabetes Rate
CDC PLACES
St. Charles
10.4%
Sunnyvale
8.3%
Sunnyvale +
Poor Mental Health
CDC PLACES — 14+ days/month
St. Charles
16.0%
Sunnyvale
12.9%
Sunnyvale +
No Health Insurance
CDC PLACES
St. Charles
7.1%
Sunnyvale
5.2%
Sunnyvale +
Binge Drinking
CDC PLACES
St. Charles
18.4%
Sunnyvale
13.5%
Sunnyvale +
Current Smokers
CDC PLACES
St. Charles
12.5%
Sunnyvale
6.7%
Sunnyvale +
| Metric | St. Charles, MO | Sunnyvale, CA | Better |
|---|---|---|---|
| Obesity RateCDC PLACES | 35.9% | 19.7% | Sunnyvale + |
| Diabetes RateCDC PLACES | 10.4% | 8.3% | Sunnyvale + |
| Poor Mental HealthCDC PLACES — 14+ days/month | 16.0% | 12.9% | Sunnyvale + |
| No Health InsuranceCDC PLACES | 7.1% | 5.2% | Sunnyvale + |
| Binge DrinkingCDC PLACES | 18.4% | 13.5% | Sunnyvale + |
| Current SmokersCDC PLACES | 12.5% | 6.7% | Sunnyvale + |
Climate
Avg Annual Temp
NOAA 1991–2020 normal
St. Charles
N/A
Sunnyvale
N/A
Annual Precipitation
NOAA 1991–2020 normal
St. Charles
N/A
Sunnyvale
N/A
| Metric | St. Charles, MO | Sunnyvale, CA | Better |
|---|---|---|---|
| Avg Annual TempNOAA 1991–2020 normal | N/A | N/A | - |
| Annual PrecipitationNOAA 1991–2020 normal | N/A | N/A | - |
Air Quality
PM2.5 Annual Avg
EPA AQS (state-level est.)
St. Charles
9.3 µg/m³
Sunnyvale
7.9 µg/m³
Sunnyvale +
Good Air Days
AQI ≤ 50
St. Charles
55.0%
Sunnyvale
75.0%
Sunnyvale +
| Metric | St. Charles, MO | Sunnyvale, CA | Better |
|---|---|---|---|
| PM2.5 Annual AvgEPA AQS (state-level est.) | 9.3 µg/m³ | 7.9 µg/m³ | Sunnyvale + |
| Good Air DaysAQI ≤ 50 | 55.0% | 75.0% | Sunnyvale + |
Commute
Mean Commute Time
Census ACS
St. Charles
18.3 min
St. Charles +
Sunnyvale
25.3 min
| Metric | St. Charles, MO | Sunnyvale, CA | Better |
|---|---|---|---|
| Mean Commute TimeCensus ACS | 18.3 min | 25.3 min | St. Charles + |
Which City is Right for You?
Sunnyvale leads in median household income at $181,862, while st. Charles offers more affordable housing with a median home price of $144,200. On public safety, St. Charles is safer with a violent crime rate of 501 per 100,000 residents, compared to 503 in Sunnyvale. Sunnyvale has a lower unemployment rate at 4.1%, and Sunnyvale has cleaner air (PM2.5 avg 7.9 µg/m³). For overall health outcomes, Sunnyvale scores better with a lower obesity rate of 19.7%.
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