Norwich, CT has a population of 40,057 and is the 1,034th largest city in the United States. The population density is 1,427 per sq mi which is 120% higher than the Connecticut average and 1476% higher than the national average. The median age in Norwich is 37 which is approximately 10% lower than the Connecticut average of 41. In Norwich, 43% of the population over 15 years of age are married, 78% speak English and 11% speak Spanish. 58% of Norwich residents were born in Connecticut, 26% were born out of state, 5% were born outside of the United States and 12% were foreign born.