Waterford, CT has a population of 3,094 and is the 8,654th largest city in the United States. The population density is 1,639 per sq mi which is 153% higher than the Connecticut average and 1709% higher than the national average. The median age in Waterford is 47 which is approximately 15% higher than the Connecticut average of 41. In Waterford, 55% of the population over 15 years of age are married, 88% speak English and 2% speak Spanish. 63% of Waterford residents were born in Connecticut, 27% were born out of state, 1% were born outside of the United States and 9% were foreign born.