US ZIP Code 31405 Age & Gender Distribution (2024)
Population distribution by age and gender for US ZIP Code 31405
US ZIP Code 31405 Age & Gender Statistics (2024)
Total Population
40,764
Median Age
35.5
Male Median
34.5
Female Median
36.7
US ZIP Code 31405 Population Growth

US ZIP Code 31405 Demographic Trend
Since 2021, the population of has changed by +6.9%%.
+6.9%% Growth
US ZIP Code 31405 Age & Gender Pyramid

Figure 2: Population distribution by age and gender for 2024.
US ZIP Code 31405 Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 35.5 | 40,764 |
| 2023 | 35.9 | 39,724 |
| 2022 | 37.0 | 37,751 |
| 2021 | 35.2 | 38,145 |
US ZIP Code 31405 Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 6.6% |
| 5–17 | 16.0% |
| 18–24 | 10.4% |
| 25–34 | 16.2% |
| 35–54 | 27.1% |
| 55–64 | 9.0% |
| 65+ | 14.7% |
Dependency Ratios for US ZIP Code 31405
- Total Dependency Ratio:
- 59.6
- Youth Dependency:
- 36.0
- Old-Age Dependency:
- 23.5
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 31405
The median age in US ZIP Code 31405 is 35.5 years.
According to latest Census data, the total population of US ZIP Code 31405 is 40,764.
In US ZIP Code 31405, seniors (ages 65+) make up 14.7% of the population, while children under 18 represent 16.0%.
Based on historical data since 2021, the population in US ZIP Code 31405 has remained stable.