Dauphin County, Pennsylvania Age & Gender Statistics (2024)

Total Population

289,593

Median Age

39.4

Male Median

38.0

Female Median

40.4

Dauphin County, Pennsylvania Population Growth

Population trends in
Figure 1: Annual population growth trend for (2010–2024).

Dauphin County, Pennsylvania Demographic Trend

Since 2010, the population of has changed by +9.4%%.

+9.4%% Growth

Dauphin County, Pennsylvania Age & Gender Pyramid

Population pyramid for

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


Dauphin County, Pennsylvania Historical Population Data

YearMedian AgePopulation
202439.4289,593
202339.4287,484
202239.4286,108
202139.5284,199
202039.6277,071
201939.7275,632
201839.8274,515
201739.6273,329
201639.6271,962
201539.6271,094
201439.4269,946
201339.3269,035
201239.2267,891
201139.1266,576
201039.1264,823

Dauphin County, Pennsylvania Age Group Breakdown (2024)

Age CohortPercentage
Under 55.9%
5–1716.5%
18–248.2%
25–3413.8%
35–5424.7%
55–6413.0%
65+18.0%

Dependency Ratios for Dauphin County, Pennsylvania

Total Dependency Ratio:
67.7
Youth Dependency:
37.5
Old-Age Dependency:
30.2

The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).



Age & Gender FAQs for Dauphin County, Pennsylvania

The median age in Dauphin County, Pennsylvania is 39.4 years.

According to latest Census data, the total population of Dauphin County, Pennsylvania is 289,593.

In Dauphin County, Pennsylvania, seniors (ages 65+) make up 18.0% of the population, while children under 18 represent 16.5%.

Based on historical data since 2010, the population in Dauphin County, Pennsylvania has remained stable.
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