Newtown, CT has a population of 2,009 and is the 11,001st largest city in the United States. The population density is 872 per sq mi which is 35% higher than the Connecticut average and 862% higher than the national average. The median age in Newtown is 44 which is approximately 8% higher than the Connecticut average of 41. In Newtown, 66% of the population over 15 years of age are married, 85% speak English and 7% speak Spanish. 48% of Newtown residents were born in Connecticut, 38% were born out of state, 2% were born outside of the United States and 12% were foreign born.