Groton is located close to the center of Massachusetts. Groton is part of Middlesex County. Groton has 1.67 square miles of land area and 0.00 square miles of water area. As of 2010-2014, the total Groton population is 939, which has shrunk 15.63% since 2000. The population growth rate is much lower than the state average rate of 4.85% and is much lower than the national average rate of 11.61%. Groton median household income is $39,931 in 2010-2014 and has has shrunk by 31.64% since 2000. The income growth rate is much lower than the state average rate of 34.34% and is much lower than the national average rate of 27.36%. Groton median house value is $414,900 in 2010-2014 and has shrunk by -52.87% since 2000. The house value growth rate is lower than the state average rate of 77.65% and is 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 much better than the state average in quality. The Groton area code is 978.