Havre De Grace, MD is a city located in Harford County, Maryland and has a land area of 30.10 square miles (77.96 km2). The water area for the city is 5.35 square miles or 13.86 km2. There is one unique zip code in Havre De Grace, Maryland and it is 21078. The area code(s) for Havre De Grace is 443/667/410.
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