US ZIP Code 20721 Age & Gender Statistics (2024)

Total Population

31,032

Median Age

48.4

Male Median

47.0

Female Median

50.1

US ZIP Code 20721 Population Growth

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

US ZIP Code 20721 Demographic Trend

Since 2021, the population of has changed by +0.8%%.

+0.8%% Growth

US ZIP Code 20721 Age & Gender Pyramid

Population pyramid for

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


US ZIP Code 20721 Historical Population Data

YearMedian AgePopulation
202448.431,032
202348.130,342
202247.230,785
202146.430,771

US ZIP Code 20721 Age Group Breakdown (2024)

Age CohortPercentage
Under 53.9%
5–1714.4%
18–246.2%
25–348.3%
35–5427.7%
55–6417.4%
65+22.2%

Dependency Ratios for US ZIP Code 20721

Total Dependency Ratio:
68.0
Youth Dependency:
30.8
Old-Age Dependency:
37.2

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 20721

The median age in US ZIP Code 20721 is 48.4 years.

According to latest Census data, the total population of US ZIP Code 20721 is 31,032.

In US ZIP Code 20721, seniors (ages 65+) make up 22.2% of the population, while children under 18 represent 14.4%.

Based on historical data since 2021, the population in US ZIP Code 20721 is aging.
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