Nantucket County, Massachusetts Demographics 2026

Population Overview

Nantucket County is located in Massachusetts with a total population of 14,299. It is the 14th most populous county out of 14 in Massachusetts.

Age Demographics

The median age in Nantucket County is 40.8 years. This is 2% higher than the state median of 40.0 years.

Economy, Income & Housing

The median household income in Nantucket County is $119,750. This is 18% higher than the state median of $101,341. Compared to the national median of $78,538, household income here is 52% higher. The poverty rate stands at 3.0%. This is 70% lower than the state poverty rate of 10.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 5.3%. This is 3% higher than the state rate of 5.1%. The median home value is $1,387,000. Housing costs are 164% higher than the state median of $525,800. The home-value-to-income ratio of 11.6x suggests that housing affordability is a significant concern for many residents. 76.5% of occupied housing units are owner-occupied. This homeownership rate is 22% higher than the state average of 62.6%.

Race & Ethnicity

The largest racial or ethnic group in Nantucket County is White (non-Hispanic), making up 69.1% of the population. Hispanic or Latino residents account for 16.4%. The Asian population (1.8%) is well below the state average of 7.0%.

Education

58.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 25% higher than the state rate of 46.6%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.0%. Notably, 21.3% of adults hold a graduate or professional degree, indicating a highly educated workforce.