Santa Clara County, CA Population

Overview

1.93 million

Total Population

37.5

Median age

49.08%

Female population %

103.8:100

Gender ratio (M:F)

30-34 years

Largest age group

46.3

Total dependency ratio

White

Largest racial group

485,092

Hispanic population

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

TABLE OF CONTENTS

Age

Santa Clara County's population is young compared to the rest of the country:

The median age in Santa Clara County is 37.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Santa Clara County's population under 18 was 21.85%, compared to the 22.51% nationwide.
Santa Clara County's elderly or the senior population (over 65 age) was 13.56% as compared to 16.04% nationwide.
Of the total population in Santa Clara County, 18.08% were under the age of 15, 19.95% aged 15 to 29, 48.41% aged 30 to 64, 11.65% aged 65 to 84, and 1.91% were 85 years of age and older.

There are 35,626 less females than males in Santa Clara County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.08% females and 50.92% males in Santa Clara County, CA.
The Santa Clara County, CA gender ratio is 103.8:100 i.e. 103.8 men to 100 women (1.038).
For male population, the largest age group is 30-34 years with a population of 84,345.
For the female population, the largest age group is 30-34 years with a population of 73,141.

Santa Clara County's population has become increasingly diverse:

Racial distribution of Santa Clara County population: 39.03% are White, 2.46% are Black or African American, 0.62% are American Indian and Alaska Native, 38.13% are Asian, 0.34% are Native Hawaiian and other Pacific Islander, 9.79% are some other race and 9.63% are multiracial.
Santa Clara County's racial breakdown clearly shows that there is no majority of any race in the county.
By ethnicity, 485,092 is Hispanic or Latino (of any race), and 1.45 million (74.89% of the total population) is Non-Hispanic.
The largest racial group in Santa Clara County is White with a population of 754,027 (39.03% of the total population).

Santa Clara County's population has already reached its peak and is showing a trend of decline:

The peak population was 1,932,251 in the year 2017
From 2000 to 2010, Santa Clara County's population increased by 100,152 (5.94%), as compared to the national growth of 9.63%.
From 2010 to 2020, Santa Clara County's population increased by 145,025 (8.12%), 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, Santa Clara County's population was lowest in year 2003 at 1,673,249.