Westport, CT has a population of 27,511 and is the 1,565th largest city in the United States. The population density is 1,378 per sq mi which is 113% higher than the Connecticut average and 1421% higher than the national average. The median age in Westport is 45 which is approximately 10% higher than the Connecticut average of 41. In Westport, 68% of the population over 15 years of age are married, 85% speak English and 4% speak Spanish. 32% of Westport residents were born in Connecticut, 54% were born out of state, 2% were born outside of the United States and 12% were foreign born.