US ZIP Code 17821 Age & Gender Statistics (2024)

Total Population

18,613

Median Age

42.9

Male Median

40.7

Female Median

45.0

US ZIP Code 17821 Population Growth

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

US ZIP Code 17821 Demographic Trend

Since 2021, the population of has changed by -1.1%%.

-1.1%% Growth

US ZIP Code 17821 Age & Gender Pyramid

Population pyramid for

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


US ZIP Code 17821 Historical Population Data

YearMedian AgePopulation
202442.918,613
202343.018,787
202243.018,936
202142.718,818

US ZIP Code 17821 Age Group Breakdown (2024)

Age CohortPercentage
Under 55.6%
5–1714.4%
18–246.2%
25–3412.8%
35–5424.5%
55–6414.4%
65+22.2%

Dependency Ratios for US ZIP Code 17821

Total Dependency Ratio:
72.7
Youth Dependency:
34.4
Old-Age Dependency:
38.3

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 17821

The median age in US ZIP Code 17821 is 42.9 years.

According to latest Census data, the total population of US ZIP Code 17821 is 18,613.

In US ZIP Code 17821, 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 17821 has remained stable.
Back to Overview