How many people live in Santa Clara County, CA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 1.93 million people living in Santa Clara County, CA. That makes Santa Clara County the 18th-most populous county in the US. It is also the sixth-largest in California, accounting for 4.9% of the state’s population.
1.93M
population of Santa Clara County, CA (2024)
4.9%
County share of the California population (2024)
About 1.93 million people lived in Santa Clara County, CA in 2024.
Population estimates, 2000–2024
What are Santa Clara County, CA’s age demographics?
About 300,600 Santa Clara County, CA residents are aged 65 and older in 2024. That represents 15.6% of its population. For comparison, the age group represents 16.6% of California’s population and 18% in the US overall.
Another 373,800 Santa Clara County residents, or 19.4% of the population, were children under 18. For comparison, the age group represents 21.4% of California’s population and 21.6% in the US overall.
A higher share of Santa Clara County, CA's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Santa Clara County, CA’s racial and ethnic demographics?
Non-Hispanic Asian residents make up 42.6% of the Santa Clara County, CA population, higher than the national share of 6.5%. Santa Clara County, CA also has a larger share of people identifying as Hispanic (24.8%) than the US overall (20%).
In contrast, Santa Clara County’s non-Hispanic white population accounts for 26.5%, below the 57.5% nationwide, and the non-Hispanic Black or African American population makes up 2.4% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Santa Clara County, CA has a higher share of a non-Hispanic Asian population than California as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Santa Clara County, CA is San Jose with about 997,400 residents in 2024.
Cities and towns in Santa Clara County, CA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | San Jose | 997,368 |
| 2. | Sunnyvale | 156,792 |
| 3. | Santa Clara | 133,132 |
| 4. | Mountain View | 87,316 |
| 5. | Milpitas | 79,746 |
| 6. | Palo Alto | 67,658 |
| 7. | Gilroy | 60,390 |
| 8. | Cupertino | 58,710 |
| 9. | Morgan Hill | 45,952 |
| 10. | Campbell | 42,895 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
