US ZIP Code 37321 Age & Gender Statistics (2024)

Total Population

21,084

Median Age

40.2

Male Median

38.8

Female Median

41.6

US ZIP Code 37321 Population Growth

Population trends in
Figure 1: Annual population growth trend for (2021–2024).

US ZIP Code 37321 Demographic Trend

Since 2021, the population of has changed by +2.9%%.

+2.9%% Growth

US ZIP Code 37321 Age & Gender Pyramid

Population pyramid for

Figure 2: Population distribution by age and gender for 2024.


US ZIP Code 37321 Historical Population Data

YearMedian AgePopulation
202440.221,084
202338.720,670
202237.320,672
202137.120,498

US ZIP Code 37321 Age Group Breakdown (2024)

Age CohortPercentage
Under 56.4%
5–1715.5%
18–249.8%
25–3412.3%
35–5425.7%
55–6412.6%
65+17.6%

Dependency Ratios for US ZIP Code 37321

Total Dependency Ratio:
65.3
Youth Dependency:
36.2
Old-Age Dependency:
29.1

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 37321

The median age in US ZIP Code 37321 is 40.2 years.

According to latest Census data, the total population of US ZIP Code 37321 is 21,084.

In US ZIP Code 37321, seniors (ages 65+) make up 17.6% of the population, while children under 18 represent 15.5%.

Based on historical data since 2021, the population in US ZIP Code 37321 is aging.
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