Monson Center, MA has a population of 2,031 and is the 10,926th largest city in the United States. The population density is 605 per sq mi which is 4% lower than the Massachusetts average and 568% higher than the national average. The median age in Monson Center is 44 which is approximately 11% higher than the Massachusetts average of 39. In Monson Center, 45% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 82% of Monson Center residents were born in Massachusetts, 17% were born out of state, 1% were born outside of the United States and 0% were foreign born.