Hillsborough County, NH Population

Overview

420,504

Total Population

40.9

Median age

49.98%

Female population %

100.1:100

Gender ratio (M:F)

55-59 years

Largest age group

47.9

Total dependency ratio

White

Largest racial group

31,014

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Hillsborough County is 40.9, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Hillsborough County's population under 18 was 20.41%, compared to the 22.51% nationwide.
Hillsborough County's elderly or the senior population (over 65 age) was 15.78% as compared to 16.04% nationwide.
Of the total population in Hillsborough County, 16.60% were under the age of 15, 19.18% aged 15 to 29, 48.44% aged 30 to 64, 13.99% aged 65 to 84, and 1.79% were 85 years of age and older.

There are 202 less females than males in Hillsborough County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.98% females and 50.02% males in Hillsborough County, NH.
The Hillsborough County, NH gender ratio is 100.1:100 i.e. 100.1 men to 100 women (1.001).
For male population, the largest age group is 55-59 years with a population of 16,519.
For the female population, the largest age group is 55-59 years with a population of 15,952.

Hillsborough County's population has become increasingly diverse:

Racial distribution of Hillsborough County population: 86.44% are White, 2.78% are Black or African American, 0.12% are American Indian and Alaska Native, 4.20% are Asian, 0.04% are Native Hawaiian and other Pacific Islander, 1.34% are some other race and 5.08% are multiracial.
Hillsborough County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 31,014 is Hispanic or Latino (of any race), and 389,49 (92.62% of the total population) is Non-Hispanic.
The largest racial group in Hillsborough County is White with a population of 363,494 (86.44% of the total population).

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

The peak population was 426,594 in the year 2022
From 2000 to 2010, Hillsborough County's population increased by 18,674 (4.88%), as compared to the national growth of 9.63%.
From 2010 to 2020, Hillsborough County's population increased by 21,819 (5.44%), 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, Hillsborough County's population was lowest in year 2000 at 382,390.