US ZIP Code 21128 Age & Gender Statistics (2024)

Total Population

15,501

Median Age

40.1

Male Median

38.1

Female Median

43.6

US ZIP Code 21128 Population Growth

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

US ZIP Code 21128 Demographic Trend

Since 2021, the population of has changed by +3.4%%.

+3.4%% Growth

US ZIP Code 21128 Age & Gender Pyramid

Population pyramid for

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


US ZIP Code 21128 Historical Population Data

YearMedian AgePopulation
202440.115,501
202340.614,954
202240.015,934
202141.814,987

US ZIP Code 21128 Age Group Breakdown (2024)

Age CohortPercentage
Under 55.1%
5–1716.7%
18–248.7%
25–3412.2%
35–5426.9%
55–6413.0%
65+17.5%

Dependency Ratios for US ZIP Code 21128

Total Dependency Ratio:
64.5
Youth Dependency:
35.7
Old-Age Dependency:
28.8

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 21128

The median age in US ZIP Code 21128 is 40.1 years.

According to latest Census data, the total population of US ZIP Code 21128 is 15,501.

In US ZIP Code 21128, seniors (ages 65+) make up 17.5% of the population, while children under 18 represent 16.7%.

Based on historical data since 2021, the population in US ZIP Code 21128 is becoming younger.
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