Nantucket County, MA Population

Overview

13,795

Total Population

41.9

Median age

44.87%

Female population %

122.9:100

Gender ratio (M:F)

50-54 years

Largest age group

43.1

Total dependency ratio

White

Largest racial group

2,025

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Nantucket County is 41.9, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Nantucket County's population under 18 was 19.21%, compared to the 22.51% nationwide.
Nantucket County's elderly or the senior population (over 65 age) was 15.67% as compared to 16.04% nationwide.
Of the total population in Nantucket County, 14.47% were under the age of 15, 18.34% aged 15 to 29, 51.52% aged 30 to 64, 13.77% aged 65 to 84, and 1.91% were 85 years of age and older.

There are 1,415 less females than males in Nantucket County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 44.87% females and 55.13% males in Nantucket County, MA.
The Nantucket County, MA gender ratio is 122.9:100 i.e. 122.9 men to 100 women (1.229).
For male population, the largest age group is 50-54 years with a population of 779.
For the female population, the largest age group is 50-54 years with a population of 651.

Nantucket County's population has become increasingly diverse:

Racial distribution of Nantucket County population: 75.77% are White, 13.48% are Black or African American, 1.66% are Asian, 0.04% are Native Hawaiian and other Pacific Islander, 3.07% are some other race and 5.97% are multiracial.
Nantucket County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 2,025 is Hispanic or Latino (of any race), and 11,77 (85.32% of the total population) is Non-Hispanic.
The largest racial group in Nantucket County is White with a population of 10,453 (75.77% of the total population).

Nantucket County's population has already reached its peak and is showing a trend of decline:

The peak population was 14,499 in the year 2021
From 2000 to 2010, Nantucket County's population increased by 601 (6.28%), as compared to the national growth of 9.63%.
From 2010 to 2020, Nantucket County's population increased by 4,072 (40.06%), 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, Nantucket County's population was lowest in year 2000 at 9,564.