Crownsville, MD is a city located in Anne Arundel County, Maryland and has a land area of 17.29 square miles (44.78 km2). The water area for the city is 1.75 square miles or 4.53 km2. There is one unique zip code in Crownsville, Maryland and it is 21032. The area code(s) for Crownsville is 410/443.
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