20660 Zip Code
20660 zip code is located close to the center of Maryland. 20660 zip code is part of Saint Marys County. 20660 zip code has 0.91 square miles of land area and has no water area. As of 2010-2014, the total 20660 zip code population is 28. On average, the public school district that covers 20660 zip code is better than the state average in quality. The 20660 zip code area code is 301.
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