21790 Zip Code
21790 zip code is located close to the center of Maryland. 21790 zip code is part of Frederick County. 21790 zip code has 3.92 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total 21790 zip code population is 45, which has shrunk 42.31% since 2000. The population growth rate is much lower than the state average rate of 11.16% and is much lower than the national average rate of 11.61%. 21790 zip code median household income is $31,667 in 2010-2014 and has has shrunk by 47.94% since 2000. The income growth rate is much lower than the state average rate of 40.25% and is much lower than the national average rate of 27.36%. 21790 zip code median house value is $173,600 in 2000. 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 21790 zip code is better than the state average in quality. The 21790 zip code area code is 301.