Lancaster County, Pennsylvania Age & Gender Statistics (2024)

Total Population

557,931

Median Age

39.4

Male Median

38.2

Female Median

40.7

Lancaster County, Pennsylvania Population Growth

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

Lancaster County, Pennsylvania Demographic Trend

Since 2010, the population of has changed by +9.1%%.

+9.1%% Growth

Lancaster County, Pennsylvania Age & Gender Pyramid

Population pyramid for

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


Lancaster County, Pennsylvania Historical Population Data

YearMedian AgePopulation
202439.4557,931
202339.1555,151
202239.0553,202
202138.7550,480
202038.7543,050
201938.6540,999
201838.6538,347
201738.5536,494
201638.5533,110
201538.4530,216
201438.3526,839
201338.2523,306
201238.0519,913
201137.9515,817
201037.7511,250

Lancaster County, Pennsylvania Age Group Breakdown (2024)

Age CohortPercentage
Under 56.2%
5–1716.9%
18–248.8%
25–3412.9%
35–5423.0%
55–6412.6%
65+19.6%

Dependency Ratios for Lancaster County, Pennsylvania

Total Dependency Ratio:
74.6
Youth Dependency:
40.4
Old-Age Dependency:
34.2

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



Age & Gender FAQs for Lancaster County, Pennsylvania

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

According to latest Census data, the total population of Lancaster County, Pennsylvania is 557,931.

In Lancaster County, Pennsylvania, seniors (ages 65+) make up 19.6% of the population, while children under 18 represent 16.9%.

Based on historical data since 2010, the population in Lancaster County, Pennsylvania is aging.
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