How many people live in Los Angeles County, CA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 9.76 million people living in Los Angeles County, CA. That makes Los Angeles County the most populous county in the US. It is also the largest in California, accounting for 24.8% of the state’s population.
9.76M
population of Los Angeles County, CA (2024)
24.8%
County share of the California population (2024)
About 9.76 million people lived in Los Angeles County, CA in 2024.
Population estimates, 2000–2024
What are Los Angeles County, CA’s age demographics?
About 1.58 million Los Angeles County residents are aged 65 and older in 2024. That represents 16.1% of its population. For comparison, the age group represents 16.6% of California’s population and 18% in the US overall.
Another 1.94 million Los Angeles County, CA residents, or 19.9% 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 Los Angeles County, CA's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Los Angeles County, CA’s racial and ethnic demographics?
Hispanic residents make up 48.8% of the Los Angeles County population, higher than the national share of 20%. Los Angeles County also has a larger share of people identifying as non-Hispanic Asian (15.7%) than the US overall (6.5%).
In contrast, Los Angeles County’s non-Hispanic white population accounts for 25%, below the 57.5% nationwide, and the non-Hispanic Black or African American population makes up 7.8% 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.
Los Angeles County, CA has a higher share of a Hispanic population than California as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Los Angeles County, CA is Los Angeles with about 3.88 million residents in 2024.
Cities and towns in Los Angeles County, CA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Los Angeles | 3,878,704 |
| 2. | Long Beach | 450,901 |
| 3. | Santa Clarita | 229,159 |
| 4. | Glendale | 187,823 |
| 5. | Lancaster | 167,426 |
| 6. | Palmdale | 162,536 |
| 7. | Pomona | 147,966 |
| 8. | Torrance | 139,576 |
| 9. | Pasadena | 137,195 |
| 10. | Downey | 109,368 |
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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.
