Wethersfield, CT has a population of 26,396 and is the 1,633rd largest city in the United States. The population density is 2,146 per sq mi which is 231% higher than the Connecticut average and 2268% higher than the national average. The median age in Wethersfield is 45 which is approximately 11% higher than the Connecticut average of 41. In Wethersfield, 62% of the population over 15 years of age are married, 74% speak English and 8% speak Spanish. 64% of Wethersfield residents were born in Connecticut, 16% were born out of state, 2% were born outside of the United States and 18% were foreign born.