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Demographics of Santa Clara County, California

Santa Clara County, California had 1,914,391 people on July 1, 2025, by the Census Bureau’s estimate: −16,958 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Santa Clara County, in four figures

1,914,391
Population
July 1, 2025, Vintage 2025 estimate.
−0.9%
Change since July 2020
−16,958 people.
38.1 ±0.1
Median age
ACS 2020–⁠2024.
$164,281 ±$1,955
Median household income
ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Santa Clara County, California's population shrank 0.9% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Santa Clara County, California's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Santa Clara County, California's population shrank 0.9% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Santa Clara County, California's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1PopulationIndexUnited States
20201,931,349100.0100.0
20211,882,52897.5100.2
20221,880,15197.3100.7
20231,890,37797.9101.6
20241,907,91098.8102.5
20251,914,39199.1103.1

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Population of Santa Clara County, California on July 1 of each year, Vintage 2025
July 1PopulationChange
20201,931,349−4,925
20211,882,528−48,821
20221,880,151−2,377
20231,890,377+10,226
20241,907,910+17,533
20251,914,391+6,481

Age, 2020–2024

The median age is 38.1 ±0.1: for men 37.1 ±0.2 and for women 39.2 ±0.2. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Santa Clara County by age, ACS 2020–2024
AgePeopleShare
Under 598,758 ±2245.2% ±<0.1
5 to 17291,318 ±2,92115.3% ±0.2
18 to 24164,705 ±2,1148.7% ±0.1
25 to 44583,210 ±2,98730.7% ±0.2
45 to 64482,046 ±2,82425.3% ±0.1
65 and over282,010 ±3,22614.8% ±0.2

Income and poverty, 2020–2024

Median household income is $164,281 ±$1,955, and income per person $80,312 ±$714, in 2024 dollars. The median is $99,122 ±$310 in California and $80,734 ±$166 in the United States.

Households by income

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Households in Santa Clara County by income, ACS 2020–2024
Household incomeHouseholdsShare
Under $25,00050,814 ±1,9757.7% ±0.3
$25,000 to $49,99950,016 ±1,7647.6% ±0.3
$50,000 to $74,99951,933 ±1,7187.9% ±0.3
$75,000 to $99,99954,617 ±1,9658.3% ±0.3
$100,000 to $149,99996,316 ±2,54814.6% ±0.4
$150,000 to $199,99981,469 ±2,04312.4% ±0.3
$200,000 or more274,188 ±3,51741.6% ±0.5

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Santa Clara County by age, ACS 2020–2024
AgeBelow povertyRate
All ages132,836 ±5,1307.1% ±0.3
Under 1826,809 ±1,9347.0% ±0.5
18 to 5971,445 ±2,7846.5% ±0.3
60 and over34,582 ±1,5729.0% ±0.4

Housing, 2020–2024

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Housing in Santa Clara County, ACS 2020–2024
MeasureSanta Clara CountyCalifornia
Housing units698,837 ±29014,644,735 ±1,665
Occupied94.4% ±0.392.5% ±0.1
Vacant5.6% ±0.37.5% ±0.1
Owner occupied55.1% ±0.555.9% ±0.3
Renter occupied44.9% ±0.544.1% ±0.2
Median home value$1,490,600 ±$14,163$734,700 ±$1,307
Median gross rent$2,857 ±$19$2,036 ±$5
Median year built1975 ±11976 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Santa Clara County by Hispanic origin and race, ACS 2020–2024
OriginPeopleShare
Hispanic or Latino475,827 ±025.0% ±<0.1
White alone, not Hispanic517,612 ±1,54327.2% ±0.1
Black alone, not Hispanic41,721 ±1,3012.2% ±0.1
Asian alone, not Hispanic766,176 ±2,60340.3% ±0.1
American Indian and Alaska Native alone, not Hispanic3,181 ±3960.2% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic6,964 ±4650.4% ±<0.1
Some other race alone, not Hispanic10,471 ±1,1860.6% ±0.1
Two or more races, not Hispanic80,095 ±3,1774.2% ±0.2

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Santa Clara County by place of birth and citizenship, ACS 2020–2024
BornPeopleShare
Born in the state840,883 ±6,07344.2% ±0.3
Born in another state241,049 ±4,16012.7% ±0.2
Born a citizen outside the states30,359 ±1,5101.6% ±0.1
Born abroad789,756 ±6,35541.5% ±0.3
Naturalized citizens412,139 ±4,62121.7% ±0.2
Not citizens377,617 ±6,77019.9% ±0.4

Santa Clara County among the counties of California

6th of 58 by population, July 2025. Every one is listed on the California page.

Counties of California near Santa Clara County in population, July 2025
CountyJuly 2025Change since 2020
Los Angeles County9,694,934−3.0%
San Diego County3,282,248−0.6%
Orange County3,149,507−1.2%
Riverside County2,544,916+5.0%
San Bernardino County2,224,091+1.9%
Santa Clara County1,914,391−0.9%
Alameda County1,636,630−2.6%
Sacramento County1,618,460+2.0%
Contra Costa County1,170,070+0.3%
Fresno County1,035,456+2.6%
Kern County927,068+2.3%

Elsewhere on the site

Sources

Data retrieved