San Marino, CA ZIP codes
San Marino, California has 2 ZIP codes, including 1 PO Box ZIP. They are in Los Angeles County.
- Population in these ZIPs
- 12,401
- Avg. median income
- $204,800population-weighted
- Typical home value
- $2,795,300population-weighted
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
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San Marino, CA ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 91108 | Los Angeles County | 12,401 | $204,847 | $2,795,300 |
| 91118 PO Box | Los Angeles County | — | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near San Marino
- San Gabriel 2 mi
- Alhambra 2 mi
- South Pasadena 3 mi
- Pasadena 3 mi
- Temple City 3 mi
- Rosemead 4 mi
- Arcadia 4 mi
- Monterey Park 5 mi
- Sierra Madre 5 mi
- Altadena 5 mi
- El Monte 6 mi
- South El Monte 6 mi
Frequently asked questions
What county is San Marino, California in?
San Marino ZIP codes are in Los Angeles County.
Which San Marino ZIP codes are PO Boxes?
91118 is a PO Box or single-organization ZIP code; it has no residential delivery area.