Randolph, MA has a population of 33,526 and is the 1,267th largest city in the United States. The population density is 3,411 per sq mi which is 442% higher than the Massachusetts average and 3665% higher than the national average. The median age in Randolph is 43 which is approximately 8% higher than the Massachusetts average of 39. In Randolph, 51% of the population over 15 years of age are married, 62% speak English and 6% speak Spanish. 56% of Randolph residents were born in Massachusetts, 11% were born out of state, 2% were born outside of the United States and 31% were foreign born.