Groton is located in southeast Connecticut. Groton is part of New London County. Groton has 3.08 square miles of land area and 3.68 square miles of water area. As of 2010-2014, the total Groton population is 9,348, which has shrunk 6.61% since 2000. The population growth rate is much lower than the state average rate of 5.48% and is much lower than the national average rate of 11.61%. Groton median household income is $51,475 in 2010-2014 and has grown by 27.05% since 2000. The income growth rate is lower than the state average rate of 29.60% and is about the same as the national average rate of 27.36%. Groton median house value is $220,200 in 2010-2014 and has grown by 77.15% since 2000. The house value growth rate is higher than the state average rate of 64.47% and is much higher than the national average rate of 46.91%. As a reference, the national Consumer Price Index (CPI) inflation rate for the same period is 26.63%. On average, the public school district that covers Groton is worse than the state average in quality. The Groton area code is 860.