20639 Zip Code
20639 zip code is located close to the center of Maryland. 20639 zip code is part of Calvert County. 20639 zip code has 41.86 square miles of land area and 1.92 square miles of water area. As of 2010-2014, the total 20639 zip code population is 14,682, which has grown 27.38% 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%. 20639 zip code median household income is $129,521 in 2010-2014 and has grown by 58.41% 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%. 20639 zip code median house value is $407,000 in 2010-2014 and has grown by 89.66% 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 20639 zip code is much better than the state average in quality. The 20639 zip code area code is 410.
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