The 2014 East Hartford, Connecticut, population is 51,171. There are 2,843 people per square mile (population density). The median age is 39.2. The US median is 37.2. 43.63% of people in East Hartford, Connecticut, are married. 11.80% are divorced. The average household size is 2.49 people. 24.61% of people are married, with children. 27.03% have children, but are single.