US ZIP Code 91801 Age & Gender Distribution (2024)
Population distribution by age and gender for US ZIP Code 91801
US ZIP Code 91801 Age & Gender Statistics (2024)
Total Population
53,381
Median Age
41.5
Male Median
39.5
Female Median
44.0
US ZIP Code 91801 Population Growth

US ZIP Code 91801 Demographic Trend
Since 2021, the population of has changed by -1.1%%.
-1.1%% Growth
US ZIP Code 91801 Age & Gender Pyramid

Figure 2: Population distribution by age and gender for 2024.
US ZIP Code 91801 Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 41.5 | 53,381 |
| 2023 | 41.7 | 53,730 |
| 2022 | 41.0 | 53,320 |
| 2021 | 40.9 | 53,976 |
US ZIP Code 91801 Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.6% |
| 5–17 | 12.0% |
| 18–24 | 6.0% |
| 25–34 | 17.0% |
| 35–54 | 27.4% |
| 55–64 | 14.2% |
| 65+ | 18.7% |
Dependency Ratios for US ZIP Code 91801
- Total Dependency Ratio:
- 54.5
- Youth Dependency:
- 25.6
- Old-Age Dependency:
- 29.0
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 91801
The median age in US ZIP Code 91801 is 41.5 years.
According to latest Census data, the total population of US ZIP Code 91801 is 53,381.
In US ZIP Code 91801, seniors (ages 65+) make up 18.7% of the population, while children under 18 represent 12.0%.
Based on historical data since 2021, the population in US ZIP Code 91801 has remained stable.