Worcester, MA has a population of 183,677 and is the 134th largest city in the United States. The population density is 4,916 per sq mi which is 681% higher than the Massachusetts average and 5327% higher than the national average. The median age in Worcester is 34 which is approximately 14% lower than the Massachusetts average of 39. In Worcester, 42% of the population over 15 years of age are married, 65% speak English and 16% speak Spanish. 57% of Worcester residents were born in Massachusetts, 15% were born out of state, 6% were born outside of the United States and 22% were foreign born.