West Chatham, MA has a population of 1,451 and is the 12,890th largest city in the United States. The population density is 496 per sq mi which is 21% lower than the Massachusetts average and 448% higher than the national average. The median age in West Chatham is 55 which is approximately 40% higher than the Massachusetts average of 39. In West Chatham, 72% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 67% of West Chatham residents were born in Massachusetts, 27% were born out of state, 1% were born outside of the United States and 5% were foreign born.