20678 Zip Code
20678 zip code is located close to the center of Maryland. 20678 zip code is part of Calvert County. 20678 zip code has 42.75 square miles of land area and 8.11 square miles of water area. As of 2010-2014, the total 20678 zip code population is 12,285, which has grown 32.97% since 2000. The population growth rate is much higher than the state average rate of 11.16% and is much higher than the national average rate of 11.61%. 20678 zip code median household income is $81,083 in 2010-2014 and has grown by 44.23% 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%. 20678 zip code median house value is $342,100 in 2010-2014 and has grown by 111.17% 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 20678 zip code is much better than the state average in quality. The 20678 zip code area code is 410.
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