Rockingham County, New Hampshire Age & Gender Distribution (2024)
Population distribution by age and gender for Rockingham County, New Hampshire
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

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

Figure 2: Population distribution by age and gender for 2024.
Rockingham County, New Hampshire Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 45.0 | 319,082 |
| 2023 | 44.8 | 317,163 |
| 2022 | 44.7 | 315,169 |
| 2021 | 44.6 | 312,771 |
| 2020 | 44.7 | 308,211 |
| 2019 | 44.5 | 306,359 |
| 2018 | 44.3 | 305,129 |
| 2017 | 44.1 | 302,479 |
| 2016 | 43.8 | 300,365 |
| 2015 | 43.5 | 299,006 |
| 2014 | 43.1 | 297,702 |
| 2013 | 42.7 | 296,718 |
| 2012 | 42.3 | 295,872 |
| 2011 | 41.9 | 295,162 |
| 2010 | 41.4 | 294,638 |
Rockingham County, New Hampshire Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.5% |
| 5–17 | 14.0% |
| 18–24 | 7.0% |
| 25–34 | 11.9% |
| 35–54 | 25.8% |
| 55–64 | 16.5% |
| 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.