Get ready-to-use data, reports, analysis, and visualizations covering the demographics of Nantucket County, Massachusetts based on the current United States Census Bureau's 2023 American Community Survey (ACS) 5-Year Estimates.
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Nantucket County, Massachusetts Demographics: Sex by Age
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the total population of Nantucket County, Massachusetts is 14,299. The median age of the population in Nantucket County, Massachusetts is 40.8. The median age for males is 42.5 years, and for females, it is 40.6 years.
The age distribution of the population in Nantucket County, Massachusetts is as follows:
- Under 5 years: 4.78%
- 5–17 years (children): 15.78%
- 18–24 years (young adults): 6.36%
- 25–34 years: 10.91%
- 35–54 years: 33.29%
- 55–64 years: 13.38%
- 65 years and over (seniors): 15.50%
The total dependency ratio in Nantucket County, Massachusetts is 56.39%. The youth dependency ratio is 32.14%, and the old-age dependency ratio is 24.25%. In demographic terms, the dependency ratio measures the size of the population typically not in the labor force (children and older adults) relative to those of working age.
Nantucket County, Massachusetts Demographics: Population by Race & Ethnicity
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the breakdown of the population in Nantucket County, Massachusetts by race and ethnicity (racial demographics) is as follows:
- White: 69.12%
- Black/African American: 9.14%
- American Indian and Alaska Native: 0.00%
- Asian: 1.78%
- Native Hawaiian or Other Pacific Islander: 0.00%
- Some other race: 0.78%
- Two or more races: 2.76%
- Hispanic or Latino: 16.41%
The diversity index score in Nantucket County, Massachusetts is 48.58%, suggesting a moderate level of diversity.
Nantucket County, Massachusetts Demographics: Household Income
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the median household income in Nantucket County, Massachusetts over the past 12 months, adjusted for 2023 inflation, was $119,750.
The distribution of household income by income bracket in Nantucket County, Massachusetts is as follows:
- Less than $20,000: 3.05%
- $20,000–$34,999: 2.63%
- $35,000–$49,999: 4.99%
- $50,000–$74,999: 14.80%
- $75,000–$149,999: 34.43%
- $150,000 or more: 40.10%
Nantucket County, Massachusetts Demographics: Educational Attainment
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the breakdown of the total population of Nantucket County, Massachusetts, age 25 and older, by educational level is as follows:
- Less than high school graduate: 4.01%
- High school graduate (incl. equivalency): 16.04%
- Some college or associate's degree: 21.57%
- Bachelor's Degree: 37.11%
- Graduate or professional degree: 21.27%
In Nantucket County, Massachusetts, 58.38% of the population has a bachelor's degree or higher, while 95.99% are high school graduates or higher.
Nantucket County, Massachusetts Demographics: Health Insurance Coverage Status by Sex by Age
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the uninsured rate in Nantucket County, Massachusetts is 6.49%.
Rates of people in Nantucket County, Massachusetts lacking health insurance coverage, by age group and sex are as follows:
- Under 18: 16.63% of males and 0.00% of females are uninsured
- Ages 18–34: 4.47% of males and 8.28% of females are uninsured
- Ages 35–64: 11.39% of males and 9.52% of females are uninsured
- Ages 65 and older: 0.91% of males and 0.30% of females are uninsured
Nantucket County, Massachusetts Demographics: Nativity and Citizenship Status in the United States
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, 92.43% of people living in Nantucket County, Massachusetts are U.S. citizens. This includes individuals born in the United States, Puerto Rico, or U.S. Island Areas, those born abroad to American parents, and those who became citizens through naturalization. 7.52% of the population obtained U.S. citizenship through the naturalization process. In Nantucket County, Massachusetts, 7.52% of the population are naturalized immigrants, who obtained U.S. citizenship through the immigration and naturalization process.
Nantucket County, Massachusetts Demographics: Means of Transportation to Work
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the means of transportation to work for the population of Nantucket County, Massachusetts are distributed as follows:
- Car, truck, or van: 77.53%
- Public transportation (excluding taxicab): 0.81%
- Bicycle: 2.71%
- Walked: 5.92%
- Taxicab, motorcycle, or other means: 1.18%
- Worked from home: 11.85%
Frequently Asked Questions
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the age breakdown of the population of Nantucket County, Massachusetts is as follows:
- Under 5: 4.78%
- Ages 5–17: 15.78%
- Ages 18–24: 6.36%
- Ages 25–34: 10.91%
- Ages 35–54: 33.29%
- Ages 55–64: 13.38%
- 65 or older: 15.50%
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the racial demographics of the population of Nantucket County, Massachusetts are as follows:
- White: 69.12%
- Black/African American: 9.14%
- American Indian and Alaska Native: 0.00%
- Asian: 1.78%
- Native Hawaiian or Other Pacific Islander: 0.00%
- Some other race: 0.78%
- Two or more races: 2.76%
- Hispanic or Latino: 16.41%
* Hispanic includes respondents of any race. Other categories are non-Hispanic.
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the distribution of household income in Nantucket County, Massachusetts by income bracket is as follows:
- Less than $20,000: 3.05%
- $20,000–$34,999: 2.63%
- $35,000–$49,999: 4.99%
- $50,000–$74,999: 14.80%
- $75,000–$149,999: 34.43%
- $150,000 or more: 40.10%
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the median household income in Nantucket County, Massachusetts in the past 12 months, in 2023 inflation-adjusted dollars, was $119,750.
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, 69.12% of the population in Nantucket County, Massachusetts identifies as White alone (not Hispanic or Latino).
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, 9.14% of the population in Nantucket County, Massachusetts identifies as Black or African American alone (not Hispanic or Latino).
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, 6.49% of the population of Nantucket County, Massachusetts lacks health insurance coverage.
The detailed breakdown by age and sex is as follows:
- Under 18: 16.63% of males and 0.00% of females
- Ages 18–34: 4.47% of males and 8.28% of females
- Ages 35–64: 11.39% of males and 9.52% of females
- Ages 65 and over: 0.91% of males and 0.30% of females