Population
Population
topographic
Population

Santa Clara County

1,936,259
Total Population in 2020
In 2020, Santa Clara County was home to 1,936,259 people. Residents were predominantly working age, while those under 18 were a larger segment of the county than those 65 and older. The population was diverse, with no racial group in the majority.

Most Populous Demographics

CategoryDemographicTotalPercentage
Age18-641,262,18265%
SexMale975,31350%
Race and Hispanic or LatinoAsian (Not Hispanic or Latino)753,39939%

Age

37.5
Median Age
In 2020, Santa Clara County's population was predominantly working-age adults, while those under age 18 were a moderately larger share of the county than those 65 and older. Looking at 10-year age ranges, 30-39 was the largest group.

Population by Age Range

080k160k240k320k0-910-1920-2930-3940-4950-5960-6970-7980+11%12%14%16%14%13%10%6%4%
080k160k240k320k11%12%14%16%14%13%10%6%4%0-910-1920-2930-3940-4950-5960-6970-7980+
/View Population by Age Range dynamic table

Population by Age Group

65%18-64
    406,542
    Under 18
    1,262,182
    18-64
    267,535
    65 and over
/View Population by Age Group dynamic table

Table: Population by Age Range

Age RangePopulation in Santa Clara County
TotalPercentage
0-9213,02811%
10-19241,11412%
20-29278,61514%
30-39306,97516%
40-49267,02614%
50-59254,01813%
60-69191,53110%
70-79113,8516%
80+70,1014%

Table: Population by Age Group

Age GroupPopulation in Santa Clara County
TotalPercentage
Under 18406,54221%
18-641,262,18265%
65 and over267,53514%
* For both charts above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P12 Sex by Age for Selected Age Categories.

Sex and Age

In 2020, males outnumbered females by a small amount in Santa Clara County. Males 30-39 were the largest group by age, followed by females 30-39 and males 20-29. The biggest gap was in the 20-29 age group, where males were the larger share.

Population by Sex

50%Male
    975,313
    Male
    960,946
    Female
/View Population by Sex dynamic table

Population by Sex and Age

040k80k120k160k0-910-1920-2930-3940-4950-5960-6970-7980+109,591124,214148,066158,720132,966127,91193,35151,79828,696103,437116,900130,549148,255134,060126,10798,18062,05341,405
040k80k120k160k0-910-1920-2930-3940-4950-5960-6970-7980+109,591124,214148,066158,720132,966127,91193,35151,79828,696103,437116,900130,549148,255134,060126,10798,18062,05341,405
160k120k80k40k040k80k120k160k0-910-1920-2930-3940-4950-5960-6970-7980+109,591124,214148,066158,720132,966127,91193,35151,79828,696103,437116,900130,549148,255134,060126,10798,18062,05341,405
/View Population by Sex and Age dynamic table
Male
Female

Table: Population by Sex

SexSanta Clara County
TotalPercentage
Male975,31350%
Female960,94650%

Table: Population by Sex and Age

Sex and AgeSanta Clara County
TotalPercentage
Male975,31350%
Male: 0-9109,5916%
Male: 10-19124,2146%
Male: 20-29148,0668%
Male: 30-39158,7208%
Male: 40-49132,9667%
Male: 50-59127,9117%
Male: 60-6993,3515%
Male: 70-7951,7983%
Male: 80+28,6961%
Female960,94650%
Female: 0-9103,4375%
Female: 10-19116,9006%
Female: 20-29130,5497%
Female: 30-39148,2558%
Female: 40-49134,0607%
Female: 50-59126,1077%
Female: 60-6998,1805%
Female: 70-7962,0533%
Female: 80+41,4052%
* For both charts above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P12 Sex by Age for Selected Age Categories.

Race and Hispanic or Latino

39%
Asian (Not Hispanic or Latino)
In 2020, Santa Clara County had a diverse population with no race/ethnicity being a majority. Asian and white people were the largest groups in the county, while Hispanic and other/multiracial residents were the next biggest segments of the population.

Population by Race and Hispanic or Latino

0200k400k600k800kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multi-racial*Hispanic or Latino (any race)29%2%<1%39%<1%5%25%
0200k400k600k800kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multi-racial*Hispanic or Latino (any race)29%2%<1%39%<1%5%25%
0200k400k600k800kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multi-racial*Hispanic or Latino (any race)29%2%<1%39%<1%5%25%
/View Population by Race and Hispanic or Latino dynamic table

Table: Population by Race and Hispanic or Latino

Race and Hispanic or LatinoPopulation in Santa Clara County
TotalPercentage
White555,70829%
Black or African American42,1482%
American Indian / Alaska Native3,240<1%
Asian753,39939%
Native Hawaiian / Pacific Islander5,945<1%
Other / Multi-racial88,4625%
Hispanic or Latino (any race)487,35725%
* Categorized as Not Hispanic. This means that all the racial groups marked with an asterisk — White, Black or African American, American Indian / Alaska Native, Asian, Native Hawaiian / Pacific Islander, and Other / Multi-racial — do not include individuals who identify as Hispanic or Latino. The "Hispanic or Latino (any race)" category is separate, as Hispanic/Latino is considered an ethnicity rather than a racial category. For the chart above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P5 Hispanic or Latino Origin by Race.