Overview
3,502
Total Population
51.1
Median age
49.11%
Female population %
103.6:100
Gender ratio (M:F)
55-59 years
Largest age group
74.7
Total dependency ratio
White
Largest racial group
28
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Monte Sereno's population is old compared to the rest of the country:
- The median age in Monte Sereno is 51.1, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Monte Sereno's population under 18 was 23.02%, compared to the 22.51% nationwide.
- Monte Sereno's elderly or the senior population (over 65 age) was 25.21% as compared to 16.04% nationwide.
- Of the total population in Monte Sereno, 17.53% were under the age of 15, 13.08% aged 15 to 29, 44.17% aged 30 to 64, 21.93% aged 65 to 84, and 3.28% were 85 years of age and older.

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Gender
There are 62 less females than males in Monte Sereno:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.11% females and 50.89% males in Monte Sereno, CA.
- The Monte Sereno, CA gender ratio is 103.6:100 i.e. 103.6 men to 100 women (1.036).
- For male population, the largest age group is 60-64 years with a population of 186.
- For the female population, the largest age group is 55-59 years with a population of 201.

Read more about Monte Sereno, CA population by gender ➔
Race / Ethnicity
Monte Sereno's population has become increasingly diverse:
- Racial distribution of Monte Sereno population: 73.47% are White, 0.71% are Black or African American, 4.08% are American Indian and Alaska Native, 18.82% are Asian, 0.11% are some other race and 2.80% are multiracial.
- Monte Sereno's racial breakdown clearly shows that there is an absolute majority of White population in the city.
- By ethnicity, 28 is Hispanic or Latino (of any race), and 3,222 (92% of the total population) is Non-Hispanic.
- The largest racial group in Monte Sereno is White with a population of 2,573 (73.47% of the total population).

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Year by year
Monte Sereno's population has already reached its peak and is showing a trend of decline:
- The peak population was 3,649 in the year 2009
- From 2000 to 2010, Monte Sereno's population decreased by 130 (3.75%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Monte Sereno's population increased by 134 (4.02%), 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, Monte Sereno's population was lowest in year 2010 at 3,337.

Read more about Monte Sereno, CA population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
- U.S. Census Bureau Population Estimates Population Estimates Program (PEP)