Quinebaug, CT has a population of 1,483 and is the 12,758th largest city in the United States. The population density is 341 per sq mi which is 47% lower than the Connecticut average and 277% higher than the national average. The median age in Quinebaug is 49 which is approximately 21% higher than the Connecticut average of 41. In Quinebaug, 59% of the population over 15 years of age are married, 94% speak English and 1% speak Spanish. 35% of Quinebaug residents were born in Connecticut, 63% were born out of state, 1% were born outside of the United States and 1% were foreign born.