21131 Zip Code
21131 zip code is located close to the center of Maryland. 21131 zip code is part of Baltimore County. 21131 zip code has 22.23 square miles of land area and 1.38 square miles of water area. As of 2010-2014, the total 21131 zip code population is 7,288, which has shrunk 4.87% 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%. 21131 zip code median household income is $128,294 in 2010-2014 and has grown by 26.69% since 2000. The income growth rate is much lower than the state average rate of 40.25% and is about the same as the national average rate of 27.36%. 21131 zip code median house value is $555,700 in 2010-2014 and has grown by 88.69% since 2000. The house value growth rate is lower than the state average rate of 96.92% 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 21131 zip code is close to the state average in quality. The 21131 zip code area code is 410.