San Marino ZIP Code List — Los Angeles County, CA

There are 2 unique ZIP codes in San Marino, California. Area code: 626.

ZIP codes

3.79

sq mi land

0.01

sq mi water

626

area code

San Marino, CA ZIP code map

About San Marino, CA

San Marino, California, is a picturesque city located in Los Angeles County. Known for its affluent community and meticulously maintained gardens, the city attracts both residents and visitors with its charm. Its well-regarded schools and quiet streets make it an ideal place for families seeking a suburban atmosphere close to the bustling city of Los Angeles.

Location & geography

San Marino sits in a strategically located area, bordered by the city of Pasadena to the north and south of the notable San Gabriel Valley. This charming city spans a total area of 7.58 square miles, with a mere 0.01 square miles classified as water. The terrain is characterized by rolling hills and lush greenery, adding to its appeal as a tranquil suburban enclave.

Community & economy

The community of San Marino has a reputation for being affluent, featuring beautiful homes and vibrant gardens. Daily life is marked by an emphasis on education, with schools consistently ranked among the best in California. The local industries primarily revolve around affluent retail and professional services, contributing to a high quality of life in the area.

Transportation

San Marino is conveniently located near major highways, including the California State Route 110, which connects residents to various parts of Southern California. The nearest significant airports are the Bob Hope Airport in Burbank and Los Angeles International Airport (LAX), both providing accessible options for air travel. Public transportation options include bus services, facilitating travel to nearby towns and cities.

History

Founded in 1913, San Marino was originally developed as a residential community for affluent Angelenos seeking a serene environment. During its early years, key industries included agriculture and horticulture, particularly the cultivation of flowers and ornamental plants. Notably, the city is home to the Huntington Library, Art Museum, and Botanical Gardens, a cultural gem that draws visitors from around the world.

Did you know?

A little-known fact about San Marino is that it has no commercial zoning, which helps maintain its residential character and suburban feel. Additionally, the city is known for its significant number of structures classified as historic, reflecting its rich cultural legacy.

ZIP codes for San Marino, CA (2)

ZIP code	City	County	Map
91108	San Marino	Los Angeles	View map
91118	San Marino	Los Angeles	View map

Demographics & statistics

12,559

Population

45.8

Median age

$173,312

Median household income

$88,176

Per capita income

$2,000,000

Median home value

$3,501

Median monthly rent

82.4%

Home ownership

9.1%

Poverty rate

4.4%

Unemployment

3,919

Housing units

80.1%

Bachelor's or higher

Age distribution

Male Female

298

Under 5

289

401

5–9

389

355

10–14

345

484

15–19

470

230

20–24

224

666

25–34

645

660

35–44

641

982

45–54

952

429

55–59

416

463

60–64

449

805

65–74

781

435

75–84

421

167

85+

162

← Male

Female →

Age summary

Group	Count	%
Under 18	2,894	23.0%
18 and over	9,665	77.0%
65 and over	2,771	22.1%
Median age	45.8 years

Race & ethnicity

Asian 66.1%

White 24.5%

Two or more races 5%

Hispanic or Latino 3.1%

Other race 0.7%

Black or African American 0.5%

Native Hawaiian / Pacific Islander 0.1%

American Indian / Alaska Native 0.1%

Group	Count	%
Asian	8,562	66.1%
White	3,172	24.5%
Two or more races	642	5%
Hispanic or Latino	398	3.1%
Other race	95	0.7%
Black or African American	63	0.5%
Native Hawaiian / Pacific Islander	18	0.1%
American Indian / Alaska Native	7	0.1%

Household income

Under $10k 5.2%

$10k–$15k 0.9%

$15k–$25k 4.0%

$25k–$35k 1.5%

$35k–$50k 4.6%

$50k–$75k 8.8%

$75k–$100k 4.8%

$100k–$150k 13.9%

$150k–$200k 12.7%

$200k+ 43.5%

Range	% of households
Under $10k	5.2%
$10k–$15k	0.9%
$15k–$25k	4.0%
$25k–$35k	1.5%
$35k–$50k	4.6%
$50k–$75k	8.8%
$75k–$100k	4.8%
$100k–$150k	13.9%
$150k–$200k	12.7%
$200k+	43.5%
Median income	$173,312

Housing

Home values

Under $50k 0.3%

$50k–$100k 0.5%

$150k–$200k 0.3%

$500k–$1M 3.1%

$1M+ 95.8%

Housing overview

Metric	Value
Median home value	$2,000,000
Median rent / month	$3,501
Owner occupied	82.4%
Renter occupied	17.6%
Vacant	13.4%
Single-family detached	97.4%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	7.5
Avg household size (owned)	2.92

Year built

Era	%
2020 or later	0.4%
2010–2019	1.5%
2000–2009	1.8%
1990–1999	2.3%
1980–1989	1.1%
1970–1979	3.1%
1960–1969	7.1%
1950–1959	13.7%
1940–1949	24.7%
1939 or earlier	44.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.4%
1 bedroom	0.7%
2 bedrooms	5.3%
3 bedrooms	35.3%
4 bedrooms	38.6%
5+ bedrooms	19.7%

Vehicles per household

Vehicles	% of households
No vehicle	0.8%
1 vehicle	16.4%
2 vehicles	43.7%
3 or more	39.2%

Heating fuel

Fuel type	%
Utility gas	82.6%
Electricity	14.9%
Propane / LP gas	2.1%
Wood	0.2%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	2,732	68.2%
Cohabiting couple	65	1.6%
Male householder, no spouse	375	9.4%
Female householder, no spouse	832	20.8%
Households with children under 18	1,437	35.9%
Households with seniors (65+)	1,843	46.0%
Average household size	3.10

Marital status

Status	Male	Female
Never married	33.3%	25.5%
Married	63.2%	59.0%
Separated	0.3%	0.6%
Widowed	1.9%	9.9%
Divorced	1.3%	5.0%

Education

Less than 9th grade 2.5%

Some HS, no diploma 1.1%

HS graduate 5.1%

Some college, no degree 8.1%

Associate's degree 3.2%

Bachelor's degree 41.9%

Graduate / professional 38.2%

Metric	%
HS diploma or higher	96.4%
Bachelor's or higher	80.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	374	11.1%
Kindergarten	174	5.1%
Elementary school	1,099	32.5%
High school	820	24.3%
College / grad school	914	27.0%

Employment

Industry of employment

Education & healthcare 23.6%

Finance & real estate 17.1%

Professional & management 16.6%

Retail trade 7.3%

Manufacturing 6.9%

Wholesale trade 6.2%

Transportation & utilities 5.0%

Arts, food & hospitality 5.0%

Other services 4.3%

Information 3.1%

Public administration 2.4%

Construction 2.3%

Agriculture & mining 0.4%

Occupation

Category	%
Management, business & arts	65.2%
Service	7.3%
Sales & office	19.7%
Natural resources & construction	2.6%
Production & transportation	5.3%

Employment type

Type	%
Private sector	80.7%
Government	7.5%
Self-employed	11.3%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	62.2%
Carpool	10.0%
Public transit	4.6%
Walk	0.6%
Other means	0.3%
Avg commute (minutes)	28.2

Poverty

All people 9.1%

Under 18 years 4.7%

18 and over 10.4%

Married-couple families 2.9%

Female-led households 20.0%

Income support

Source	% of households
Social Security	32.7%
Retirement income	22.0%
Supplemental Security	2.4%
Cash public assistance	0.7%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
High blood pressure	26.6%
High cholesterol	32.6%
Heart disease	4.7%
Stroke	2.1%
Asthma	6.4%
Arthritis	17.1%
Kidney disease	2.3%
Pulmonary disease	3.3%
Cancer	6.7%

Behavior / access	%
Binge drinking	12.1%
No physical activity	13.2%
Less than 7 hrs sleep	27.9%
Fair or poor health	7.5%
Poor mental health	9.0%
Poor physical health	5.9%
No health insurance	5.2%
Visited doctor (checkup)	68.7%
Visited dentist	76.0%
Cholesterol screening	95.7%
Teeth loss	4.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	264	2.7%

Disability	%
Any disability	6.4%
Under 18	0.3%
18–64 years	3.7%
65 and over	19.6%

Health insurance coverage

Type	%
Private insurance	82.1%
Public insurance	25.1%
Uninsured under 19	1.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	11,972	95.3%
Spanish	3,021	25.2%
Other Indo-European	208	1.7%
Asian & Pacific Islander	14	0.1%
Other languages	2,799	23.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,601	52.6%
Born in same state	6,334	50.4%
Born in different state	5,066	40.3%
Foreign born	267	2.1%
Naturalized citizen	5,958	47.4%
Not a US citizen	3,572	60.0%

Ancestry

Ancestry	Count	%
French	493	3.9%
Italian	402	3.2%
Arab	332	2.6%
Norwegian	43	0.3%

Ancestry	Count	%
Dutch	40	0.3%
German	21	0.2%
Irish	9	0.1%

Technology access

Metric	% of households
Computer access	31.9%
Internet access	98.9%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for San Marino, CA?

San Marino, CA has one ZIP code: 91108.

What is the main ZIP code for San Marino, CA?

The primary ZIP code for San Marino, CA is 91108. The city uses area code 626 for phone service.

What county is San Marino, CA in?

San Marino is located in Los Angeles County, California.

How many ZIP codes are in San Marino, CA?

San Marino, CA has 1 ZIP code.

What ZIP code covers the Huntington Library, Art Museum, and Botanical Gardens in San Marino?

The Huntington Library is located in San Marino, CA 91108, which is the sole ZIP code serving this affluent residential community in Los Angeles County.

What is the ZIP code for San Marino's downtown area and civic center?

San Marino's downtown civic area, including San Marino High School and community facilities, is located in ZIP code 91108, the only ZIP code in the city.