Signals
Altadena
Placentia
Climate
100 · Top 4%
vs100 · Top 4%
Physical resilience
11 · Bottom 4%
vs12 · Bottom 7%
Housing affordability
48 · Bottom 9%
vs46 · Bottom 7%
Access
93 · Top 45%
vs95 · Top 36%
Economic stability
65 · Top 39%
vs69 · Top 32%
Measured values
| Metric | Altadena | Placentia | Source period |
|---|---|---|---|
| Population | 41,705 | 52,826 | 2024 ACS 5-Year |
| Median household income | $128,720 | $115,929 | 2024 ACS 5-Year |
| Per capita income | $66,553 | $48,006 | 2024 ACS 5-Year |
| Population density | 4,927/sq mi | 7,847/sq mi | 2024 ACS 5-Year |
| Median home value | $1,120,000 | $921,000 | 2024 ACS 5-Year |
| Median gross rent | $2,355 | $2,388 | 2024 ACS 5-Year |
| Homeownership rate | 76.9% | 63.6% | 2024 ACS 5-Year |
| Bachelor's degree or higher | 53.3% | 44.2% | 2024 ACS 5-Year |
| Poverty rate | 7.9% | 7.9% | 2024 ACS 5-Year |
| Average July high | 82°F | 84°F | 1991-2020 Normals |
| Average January low | 49°F | 46°F | 1991-2020 Normals |
| Annual precipitation | 14.3" | 11.9" | 1991-2020 Normals |
| Distance to major airport | 20 mi | 18 mi | NASR current cycle |
| Average commute | 29.8 min | 28.6 min | 2024 ACS 5-Year |
| Median age | 46.4 | 39.1 | 2024 ACS 5-Year |
| Public schools | 5 | 17 | 2024-25 school year |
| Students per teacher | 22.25 | 22.87 | 2024-25 school year |
| Free or reduced-price lunch eligibility | 47.1% | 52.3% | 2024-25 school year |
A bolded value is the more favorable of the two where the metric has a clear direction. Metrics like population and density have no inherent better or worse and are shown unweighted.
Physical risk tradeoff
Altadena
Elevated or high exposure: inland flooding, earthquake.
Placentia
Elevated or high exposure: earthquake, inland flooding.
Full profiles: Altadena, CA · Placentia, CA · How this is calculated: methodology