US ZIP Code 01721 Age & Gender Statistics (2024)

Total Population

18,873

Median Age

42.1

Male Median

40.9

Female Median

43.5

US ZIP Code 01721 Population Growth

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

US ZIP Code 01721 Demographic Trend

Since 2021, the population of has changed by +1.2%%.

+1.2%% Growth

US ZIP Code 01721 Age & Gender Pyramid

Population pyramid for

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


US ZIP Code 01721 Historical Population Data

YearMedian AgePopulation
202442.118,873
202341.718,694
202241.818,634
202141.118,646

US ZIP Code 01721 Age Group Breakdown (2024)

Age CohortPercentage
Under 54.9%
5–1713.6%
18–246.6%
25–3412.9%
35–5428.5%
55–6415.3%
65+18.2%

Dependency Ratios for US ZIP Code 01721

Total Dependency Ratio:
57.9
Youth Dependency:
29.1
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 01721

The median age in US ZIP Code 01721 is 42.1 years.

According to latest Census data, the total population of US ZIP Code 01721 is 18,873.

In US ZIP Code 01721, seniors (ages 65+) make up 18.2% of the population, while children under 18 represent 13.6%.

Based on historical data since 2021, the population in US ZIP Code 01721 has remained stable.
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