Demographics & People — Nantucket, Massachusetts

Population Overview

Population (Census)10,837
Estimated 2026~8,300
Median Age42.2
Total Households3,725
Family Households2,230
Average Household Size2.85
Diversity IndexN/A (N/A)

Race & Ethnicity

White7,476
Black or African American761
Asian58
Hispanic or Latino2,169

Heritage & Ancestry

GroupCount
Unclassified or not reported3,117
Irish1,991
Other groups1,775
Hispanic: Hispanic or Latino1,731
English1,492
Italian1,213
Hispanic: Dominican (Dominican Republic)736
German642
Hispanic: Other Hispanic or Latino594
Hispanic: Spanish490

Language

English Only8,600
Spanish1,013
Population 5+10,334

Veterans

Veterans366
Population 18+8,153
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Nantucket, Massachusetts.