01840 Zip Code
01840 zip code is located in northeast Massachusetts. 01840 zip code is part of Essex County. 01840 zip code has 0.50 square miles of land area and 0.08 square miles of water area. As of 2010-2014, the total 01840 zip code population is 4,799, which has grown 1.42% since 2000. The population growth rate is lower than the state average rate of 4.85% and is much lower than the national average rate of 11.61%. 01840 zip code median household income is $18,140 in 2010-2014 and has grown by 47.40% 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%. 01840 zip code median house value is $163,800 in 2010-2014 and has grown by -35.41% since 2000. The house value growth rate is much lower than the state average rate of 77.65% and is much lower 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 01840 zip code is worse than the state average in quality. The 01840 zip code area code is 978.