Plantsville, CT has a population of 1,702 and is the 11,973rd largest city in the United States. The population density is 1,828 per sq mi which is 182% higher than the Connecticut average and 1918% higher than the national average. The median age in Plantsville is 51 which is approximately 25% higher than the Connecticut average of 41. In Plantsville, 51% of the population over 15 years of age are married, 83% speak English and 2% speak Spanish. 71% of Plantsville residents were born in Connecticut, 19% were born out of state, 0% were born outside of the United States and 10% were foreign born.