Rockingham County, NH Population

Overview

312,771

Total Population

44.6

Median age

50.18%

Female population %

99.3:100

Gender ratio (M:F)

55-59 years

Largest age group

50.5

Total dependency ratio

White

Largest racial group

10,342

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Rockingham County's population is old compared to the rest of the country:

The median age in Rockingham County is 44.6, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Rockingham County's population under 18 was 19.34%, compared to the 22.51% nationwide.
Rockingham County's elderly or the senior population (over 65 age) was 18.06% as compared to 16.04% nationwide.
Of the total population in Rockingham County, 15.49% were under the age of 15, 17.03% aged 15 to 29, 49.42% aged 30 to 64, 16.26% aged 65 to 84, and 1.80% were 85 years of age and older.

There are 1,141 more females than males in Rockingham County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.18% females and 49.82% males in Rockingham County, NH.
The Rockingham County, NH gender ratio is 99.3:100 i.e. 99.3 men to 100 women (0.993).
For male population, the largest age group is 55-59 years with a population of 13,961.
For the female population, the largest age group is 55-59 years with a population of 13,926.

Rockingham County's population has become increasingly diverse:

Racial distribution of Rockingham County population: 93.03% are White, 0.93% are Black or African American, 0.06% are American Indian and Alaska Native, 2.07% are Asian, 0.02% are Native Hawaiian and other Pacific Islander, 0.85% are some other race and 3.06% are multiracial.
Rockingham County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 10,342 is Hispanic or Latino (of any race), and 302,429 (96.69% of the total population) is Non-Hispanic.
The largest racial group in Rockingham County is White with a population of 290,961 (93.03% of the total population).

Rockingham County's population has not reached its peak yet and is showing a trend of further growth:

The peak population was 319,424 in the year 2022
From 2000 to 2010, Rockingham County's population increased by 16,561 (5.94%), as compared to the national growth of 9.63%.
From 2010 to 2020, Rockingham County's population increased by 19,303 (6.54%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Rockingham County's population was lowest in year 2000 at 278,739.