Popponesset Island, MA has a population of 10 and is the 28,975th largest city in the United States. The population density is 139 per sq mi which is 78% lower than the Massachusetts average and 53% higher than the national average. The median age in Popponesset Island is 0 which is approximately 100% lower than the Massachusetts average of 39. In Popponesset Island, 0% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 0% of Popponesset Island residents were born in Massachusetts, 100% were born out of state, 0% were born outside of the United States and 0% were foreign born.