San Marino, CA ZIP Codes
One ZIP code serves San Marino, California: 91108. Together they are home to 12,401 residents in 4,038 households.
San Marino city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 12,216 |
| Households | 3,910 |
| Median household income | $214,167 |
| Median home value | $2,000,001 |
| Median age | 45.7 |
| Median rent | $3,501 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 12,401 |
| Households (sum of ZIP codes) | 4,038 |
| Median household income, range across ZIP codes | $204,847 (91108) to $204,847 (91108) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $204,847 |
| Homeowners | 82.0% |
| Households with kids under 18 | 35.0% |
| Moved in the past year | 14.0% |
| Carrier routes in EDDM2GO's route library | 13 routes, 4,496 homes (1 of 1 ZIP codes) |
Every ZIP code in San Marino
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 91108 | San Marino | 12,401 | 4,038 | $204,847 | $2,000,000+ | 82.0% | 35.0% | 14.0% | 13 | 4,939 | 99% of its land; mailing city |
A ZIP code is listed for San Marino when at least 10% of its land lies inside San Marino city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is San Marino. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside San Marino.
Counties
- Los Angeles County — 298 ZIP codes
Price a mailing to San Marino ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in San Marino, CA?
- 91108. A ZIP code is listed for San Marino when at least 10% of its land lies inside San Marino city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is San Marino.
- What is the population of San Marino, CA?
- The Census Bureau counts 12,216 residents inside San Marino city limits (ACS 2020–2024). The 1 ZIP code that serve San Marino hold 12,401 residents in all.
- What is the median household income in San Marino, CA?
- $214,167 inside San Marino city limits, per the Census Bureau. Across its ZIP codes the medians run from $204,847 to $204,847.
- How many carrier routes and mailboxes are in San Marino, CA?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 13 carrier routes reaching 4,496 residential and 435 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.