Riva, MD is a city located in Anne Arundel County, Maryland and has a land area of 1.42 square miles (3.68 km2). The water area for the city is 0.34 square miles or 0.88 km2. There is one unique zip code in Riva, Maryland and it is 21140. The area code(s) for Riva is 410/301.
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