San Diego County, California Age & Gender Distribution (2024)
Population distribution by age and gender for San Diego County, California
San Diego County, California Age & Gender Statistics (2024)
Total Population
3,288,774
Median Age
37.3
Male Median
36.2
Female Median
38.4
San Diego County, California Population Growth
San Diego County, California Demographic Trend
Since 2010, the population of has changed by +8.8%%.
+8.8%% Growth
San Diego County, California Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
San Diego County, California Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 37.3 | 3,288,774 |
| 2023 | 37.1 | 3,282,782 |
| 2022 | 36.7 | 3,289,701 |
| 2021 | 36.3 | 3,296,317 |
| 2020 | 36.1 | 3,323,970 |
| 2019 | 35.8 | 3,316,073 |
| 2018 | 35.6 | 3,302,833 |
| 2017 | 35.4 | 3,283,665 |
| 2016 | 35.3 | 3,253,356 |
| 2015 | 35.1 | 3,223,096 |
| 2014 | 34.9 | 3,183,143 |
| 2013 | 34.8 | 3,138,265 |
| 2012 | 34.7 | 3,100,500 |
| 2011 | 34.6 | 3,060,849 |
| 2010 | 34.5 | 3,022,468 |
San Diego County, California Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.6% |
| 5–17 | 15.3% |
| 18–24 | 9.7% |
| 25–34 | 15.9% |
| 35–54 | 26.4% |
| 55–64 | 11.7% |
| 65+ | 15.4% |
Dependency Ratios for San Diego County, California
- Total Dependency Ratio:
- 57.1
- Youth Dependency:
- 32.8
- Old-Age Dependency:
- 24.3
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for San Diego County, California
The median age in San Diego County, California is 37.3 years.
According to latest Census data, the total population of San Diego County, California is 3,288,774.
In San Diego County, California, seniors (ages 65+) make up 15.4% of the population, while children under 18 represent 15.3%.
Based on historical data since 2010, the population in San Diego County, California is aging.