01721 Zip Code
01721 zip code is located close to the center of Massachusetts. 01721 zip code is part of Middlesex County. 01721 zip code has 12.33 square miles of land area and 0.54 square miles of water area. As of 2010-2014, the total 01721 zip code population is 16,985, which has grown 15.75% since 2000. The population growth rate is much higher than the state average rate of 4.85% and is higher than the national average rate of 11.61%. 01721 zip code median household income is $102,721 in 2010-2014 and has grown by 50.19% since 2000. The income growth rate is higher than the state average rate of 34.34% and is much higher than the national average rate of 27.36%. 01721 zip code median house value is $348,900 in 2010-2014 and has grown by 62.20% 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 01721 zip code is better than the state average in quality. The 01721 zip code area code is 508.