Demographics & People — Monomoscoy Island, Massachusetts

Population Overview

Population (Census)	112
Estimated 2026	~200
Median Age	49.1
Total Households	45
Family Households	40
Average Household Size	2.49
Diversity Index	N/A (N/A)

Race & Ethnicity

White	112
Black or African American	0
Asian	0
Hispanic or Latino	0

Heritage & Ancestry

Group	Count
Unclassified or not reported	84
Portuguese	19
Lithuanian	9
Italian	6
Other groups	5

Language

English Only	112
Spanish	0
Population 5+	112

Veterans

Veterans	0
Population 18+	106

Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013 (county fallback). Data for Monomoscoy Island, Massachusetts.