US ZIP Code 78121 Age & Gender Distribution (2024)
Population distribution by age and gender for US ZIP Code 78121
US ZIP Code 78121 Age & Gender Statistics (2024)
Total Population
16,120
Median Age
38.2
Male Median
37.6
Female Median
38.8
US ZIP Code 78121 Population Growth
US ZIP Code 78121 Demographic Trend
Since 2021, the population of has changed by +17.4%%.
+17.4%% Growth
US ZIP Code 78121 Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
US ZIP Code 78121 Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 38.2 | 16,120 |
| 2023 | 39.4 | 15,001 |
| 2022 | 38.9 | 14,461 |
| 2021 | 39.8 | 13,730 |
US ZIP Code 78121 Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 6.1% |
| 5–17 | 19.5% |
| 18–24 | 7.2% |
| 25–34 | 10.8% |
| 35–54 | 32.7% |
| 55–64 | 12.2% |
| 65+ | 11.7% |
Dependency Ratios for US ZIP Code 78121
- Total Dependency Ratio:
- 59.2
- Youth Dependency:
- 40.6
- Old-Age Dependency:
- 18.5
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 78121
The median age in US ZIP Code 78121 is 38.2 years.
According to latest Census data, the total population of US ZIP Code 78121 is 16,120.
In US ZIP Code 78121, seniors (ages 65+) make up 11.7% of the population, while children under 18 represent 19.5%.
Based on historical data since 2021, the population in US ZIP Code 78121 is becoming younger.