Midlothian, MD is a city located in Allegany County, Maryland and has a land area of 2.47 square miles (6.40 km2). The water area for the city is 0.00 square miles or 0.00 km2. There is one unique zip code in Midlothian, Maryland and it is 21543. The area code(s) for Midlothian is 301/240.
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