US ZIP Code 91331 Age & Gender Distribution (2024)
Population distribution by age and gender for US ZIP Code 91331
US ZIP Code 91331 Age & Gender Statistics (2024)
Total Population
97,608
Median Age
35.4
Male Median
34.5
Female Median
36.6
US ZIP Code 91331 Population Growth
US ZIP Code 91331 Demographic Trend
Since 2021, the population of has changed by -4.8%%.
-4.8%% Growth
US ZIP Code 91331 Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
US ZIP Code 91331 Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 35.4 | 97,608 |
| 2023 | 34.7 | 98,820 |
| 2022 | 34.3 | 99,804 |
| 2021 | 34.3 | 102,553 |
US ZIP Code 91331 Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.6% |
| 5–17 | 18.1% |
| 18–24 | 10.1% |
| 25–34 | 15.6% |
| 35–54 | 26.8% |
| 55–64 | 10.9% |
| 65+ | 12.9% |
Dependency Ratios for US ZIP Code 91331
- Total Dependency Ratio:
- 57.8
- Youth Dependency:
- 37.4
- Old-Age Dependency:
- 20.4
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 91331
The median age in US ZIP Code 91331 is 35.4 years.
According to latest Census data, the total population of US ZIP Code 91331 is 97,608.
In US ZIP Code 91331, seniors (ages 65+) make up 12.9% of the population, while children under 18 represent 18.1%.
Based on historical data since 2021, the population in US ZIP Code 91331 has remained stable.