Manchester, CT has a population of 30,364 and is the 1,401st largest city in the United States. The population density is 4,698 per sq mi which is 625% higher than the Connecticut average and 5086% higher than the national average. The median age in Manchester is 34 which is approximately 16% lower than the Connecticut average of 41. In Manchester, 46% of the population over 15 years of age are married, 80% speak English and 12% speak Spanish. 62% of Manchester residents were born in Connecticut, 23% were born out of state, 4% were born outside of the United States and 11% were foreign born.