US ZIP Code 91405 Age & Gender Distribution (2024)
Population distribution by age and gender for US ZIP Code 91405
US ZIP Code 91405 Age & Gender Statistics (2024)
Total Population
56,033
Median Age
36.3
Male Median
34.9
Female Median
37.7
US ZIP Code 91405 Population Growth

US ZIP Code 91405 Demographic Trend
Since 2021, the population of has changed by +0.5%%.
+0.5%% Growth
US ZIP Code 91405 Age & Gender Pyramid

Figure 2: Population distribution by age and gender for 2024.
US ZIP Code 91405 Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 36.3 | 56,033 |
| 2023 | 35.3 | 54,887 |
| 2022 | 34.7 | 55,451 |
| 2021 | 34.3 | 55,751 |
US ZIP Code 91405 Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.1% |
| 5–17 | 15.4% |
| 18–24 | 8.5% |
| 25–34 | 18.8% |
| 35–54 | 27.0% |
| 55–64 | 12.1% |
| 65+ | 13.2% |
Dependency Ratios for US ZIP Code 91405
- Total Dependency Ratio:
- 50.7
- Youth Dependency:
- 30.9
- Old-Age Dependency:
- 19.8
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for US ZIP Code 91405
The median age in US ZIP Code 91405 is 36.3 years.
According to latest Census data, the total population of US ZIP Code 91405 is 56,033.
In US ZIP Code 91405, seniors (ages 65+) make up 13.2% of the population, while children under 18 represent 15.4%.
Based on historical data since 2021, the population in US ZIP Code 91405 is aging.