Nantucket County's estimated 2026 population is 14,803 with a growth rate of 0.3% in the past year according to the most recent United States census data. Nantucket County is the 14th largest county in Massachusetts. The 2010 population was 10,165 and has seen a growth of 45.63% since that time.
Data after 2023 is projected based on recent change
Overall: 42.4 years
Female: 42.2 years
Male: 42.5 years
There are 11,508 adults, (2,327 of whom are seniors) in Nantucket County.
Female: 6,933 (47.9%)
Male: 7,550 (52.1%)
The racial composition of Nantucket County includes 69.67% White, 9.47% Black or African American, 6.65% other race, and smaller percentages for Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 10,090 | 69.67% |
| Two or more races | 1,799 | 12.42% |
| Black or African American | 1,372 | 9.47% |
| Other race | 963 | 6.65% |
| Asian | 251 | 1.73% |
| Native American | 8 | 0.06% |
Nantucket County's average per capita income is $72,774. Household income levels show a median of $139,688. The poverty rate stands at 3.16%.
Name | Median | Mean |
|---|---|---|
| Married Families | $168,184 | - |
| Families | $154,777 | $206,082 |
| Households | $139,688 | $205,560 |
| Non Families | $74,596 | $176,728 |
Average Income
Median Household Income
Poverty Rate