21784 Zip Code
21784 zip code is located close to the center of Maryland. 21784 zip code is between the Carroll, Howard county. 21784 zip code has 57.53 square miles of land area and 2.03 square miles of water area. As of 2010-2014, the total 21784 zip code population is 39,696, which has grown 13.43% since 2000. The population growth rate is higher than the state average rate of 11.16% and is higher than the national average rate of 11.61%. 21784 zip code median household income is $104,979 in 2010-2014 and has grown by 48.16% since 2000. The income growth rate is higher than the state average rate of 40.25% and is much higher than the national average rate of 27.36%. 21784 zip code median house value is $367,600 in 2010-2014 and has grown by 106.17% since 2000. The house value growth rate is higher 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 21784 zip code is much better than the state average in quality. The 21784 zip code area codes are 410, 443.
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