Rockingham County, New Hampshire Age & Gender Statistics (2024)

Total Population

319,082

Median Age

45.0

Male Median

43.7

Female Median

46.1

Rockingham County, New Hampshire Population Growth

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

Rockingham County, New Hampshire Demographic Trend

Since 2010, the population of has changed by +8.3%%.

+8.3%% Growth

Rockingham County, New Hampshire Age & Gender Pyramid

Population pyramid for

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


Rockingham County, New Hampshire Historical Population Data

YearMedian AgePopulation
202445.0319,082
202344.8317,163
202244.7315,169
202144.6312,771
202044.7308,211
201944.5306,359
201844.3305,129
201744.1302,479
201643.8300,365
201543.5299,006
201443.1297,702
201342.7296,718
201242.3295,872
201141.9295,162
201041.4294,638

Rockingham County, New Hampshire Age Group Breakdown (2024)

Age CohortPercentage
Under 54.5%
5–1714.0%
18–247.0%
25–3411.9%
35–5425.8%
55–6416.5%
65+20.4%

Dependency Ratios for Rockingham County, New Hampshire

Total Dependency Ratio:
63.6
Youth Dependency:
30.2
Old-Age Dependency:
33.3

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



Age & Gender FAQs for Rockingham County, New Hampshire

The median age in Rockingham County, New Hampshire is 45.0 years.

According to latest Census data, the total population of Rockingham County, New Hampshire is 319,082.

In Rockingham County, New Hampshire, seniors (ages 65+) make up 20.4% of the population, while children under 18 represent 14.0%.

Based on historical data since 2010, the population in Rockingham County, New Hampshire is aging.
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