Los Angeles County, California Age & Gender Distribution (2024)
Population distribution by age and gender for Los Angeles County, California
Los Angeles County, California Age & Gender Statistics (2024)
Total Population
9,808,667
Median Age
38.2
Male Median
37.3
Female Median
39.2
Los Angeles County, California Population Growth

Los Angeles County, California Demographic Trend
Since 2010, the population of has changed by +0.5%%.
+0.5%% Growth
Los Angeles County, California Age & Gender Pyramid

Figure 2: Population distribution by age and gender for 2024.
Los Angeles County, California Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 38.2 | 9,808,667 |
| 2023 | 37.9 | 9,848,406 |
| 2022 | 37.4 | 9,936,690 |
| 2021 | 37.0 | 10,019,635 |
| 2020 | 36.7 | 10,040,682 |
| 2019 | 36.5 | 10,081,570 |
| 2018 | 36.2 | 10,098,052 |
| 2017 | 36.0 | 10,105,722 |
| 2016 | 35.8 | 10,057,155 |
| 2015 | 35.6 | 10,038,388 |
| 2014 | 35.3 | 9,974,203 |
| 2013 | 35.1 | 9,893,481 |
| 2012 | 34.8 | 9,840,024 |
| 2011 | 34.6 | 9,787,747 |
| 2010 | 34.3 | 9,758,256 |
Los Angeles County, California Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.1% |
| 5–17 | 15.5% |
| 18–24 | 8.9% |
| 25–34 | 15.7% |
| 35–54 | 27.2% |
| 55–64 | 12.4% |
| 65+ | 15.2% |
Dependency Ratios for Los Angeles County, California
- Total Dependency Ratio:
- 55.6
- Youth Dependency:
- 32.0
- Old-Age Dependency:
- 23.6
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Los Angeles County, California
The median age in Los Angeles County, California is 38.2 years.
According to latest Census data, the total population of Los Angeles County, California is 9,808,667.
In Los Angeles County, California, seniors (ages 65+) make up 15.2% of the population, while children under 18 represent 15.5%.
Based on historical data since 2010, the population in Los Angeles County, California is aging.