San Marino, CA Population

Overview

12,620

Total Population

45.6

Median age

48.63%

Female population %

105.6:100

Gender ratio (M:F)

45-49 years

Largest age group

59.9

Total dependency ratio

Asian

Largest racial group

88

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

San Marino's population is old compared to the rest of the country:

The median age in San Marino is 45.6, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
San Marino's population under 18 was 22.83%, compared to the 22.51% nationwide.
San Marino's elderly or the senior population (over 65 age) was 20.38% as compared to 16.04% nationwide.
Of the total population in San Marino, 17.08% were under the age of 15, 14.06% aged 15 to 29, 48.48% aged 30 to 64, 17.62% aged 65 to 84, and 2.76% were 85 years of age and older.

There are 346 less females than males in San Marino:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 48.63% females and 51.37% males in San Marino, CA.
The San Marino, CA gender ratio is 105.6:100 i.e. 105.6 men to 100 women (1.056).
For male population, the largest age group is 45-49 years with a population of 713.
For the female population, the largest age group is 60-64 years with a population of 597.

San Marino's population has become increasingly diverse:

Racial distribution of San Marino population: 27.21% are White, 0.34% are Black or African American, 0.08% are American Indian and Alaska Native, 66.54% are Asian, 0.20% are Native Hawaiian and other Pacific Islander, 2.09% are some other race and 3.54% are multiracial.
San Marino's racial breakdown clearly shows that there is an absolute majority of Asian population in the city.
By ethnicity, 88 is Hispanic or Latino (of any race), and 11,74 (93.03% of the total population) is Non-Hispanic.
The largest racial group in San Marino is Asian with a population of 8,397 (66.54% of the total population).

San Marino's population has already reached its peak and is showing a trend of decline:

The peak population was 13,262 in the year 2015
From 2000 to 2010, San Marino's population increased by 119 (0.92%), as compared to the national growth of 9.63%.
From 2010 to 2020, San Marino's population decreased by 626 (4.78%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, San Marino's population was lowest in year 2022 at 12,039.