San Marino is a city in Los Angeles County, California, home to about 12,216 people across 3.8 square miles. Its ZIP code is 91108.
Homes sold for a median of $1,113 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside San Marino. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up San Marino’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Hollywood Burbank/Bob Hope Airport (BUR)15 miles away |
|---|---|
| Nearest city of 250,000+ | Los Angeles, CA18 miles away |
Straight-line distances from the center of San Marino; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
San Marino had 12,513 residents in the 2020 census, down 3% since 2000.
It’s the 447th largest of 1,563 towns in California by population.
Los Angeles County grew from 170,298 residents in 1900 to 10,014,009 in 2020.
Los Angeles County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 45°F. About 15.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, San Gabriel Fire Dept, CA weather station (3 miles away).
3,987,736 jobs at 304,988 businesses in Los Angeles County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
139 doctors and other health care providers list an office in San Marino.
Nearest hospitals
Providers with an office here
| Primary care doctors | 23 |
|---|---|
| Specialist doctors | 19 |
| Dentists | 18 |
| Nurse practitioners and physician assistants | 14 |
| Mental health providers | 49 |
| Physical and occupational therapists | 7 |
| Optometrists | 2 |
| Chiropractors | 7 |
| Pharmacies | 4 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (9 nearby)
Grocery stores (3 nearby)
Pharmacies (4 nearby)
Libraries (2 nearby)
Museums (7 nearby)
Theaters and performance venues (2 nearby)
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by San Marino Unified. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Carver ElementarySan Marino | K–5 | 777 | Public | 1.3 mi |
| Valentine ElementarySan Marino | K–5 | 711 | Public | 0.3 mi |
| Huntington MiddleSan Marino | 6–8 | 709 | Public | 0.2 mi |
| San Marino HighSan Marino | 9–12 | 886 | Public | 0.8 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Ss Felicitas & Perpetua SchoolSan Marino | Pre-K–8 | 118 | Roman Catholic | 1.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.