Coventry Lake, CT has a population of 3,166 and is the 8,536th largest city in the United States. The population density is 1,083 per sq mi which is 67% higher than the Connecticut average and 1095% higher than the national average. The median age in Coventry Lake is 42 which is approximately 3% higher than the Connecticut average of 41. In Coventry Lake, 46% of the population over 15 years of age are married, 94% speak English and 0% speak Spanish. 73% of Coventry Lake residents were born in Connecticut, 22% were born out of state, 0% were born outside of the United States and 5% were foreign born.