Simsbury Center, CT has a population of 5,968 and is the 5,775th largest city in the United States. The population density is 1,309 per sq mi which is 102% higher than the Connecticut average and 1345% higher than the national average. The median age in Simsbury Center is 46 which is approximately 14% higher than the Connecticut average of 41. In Simsbury Center, 68% of the population over 15 years of age are married, 90% speak English and 4% speak Spanish. 50% of Simsbury Center residents were born in Connecticut, 41% were born out of state, 1% were born outside of the United States and 8% were foreign born.