Deale is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. The population was 4,945 at the 2010 census. It has a scenic view of Chesapeake Bay and is popular with boaters. Sudleywas listed on the National Register of Historic Places in 1973. According to the United States Census Bureau, the CDP has a total area of 5.9 square miles (15.4 km2), of which 5.3 square miles (13.7 km2) is land and 0.66 square miles (1.7 km2), or 11.01%, is water. Deale is a waterfront fishing village located on the Western Shore of Chesapeake Bay. Four tidal creeks are located in Deale that flow into the bay: Rockhold Creek, Parker Creek, Carrs Creek, and Broadwater Creek. Rockhold Creek is the most commercial of the creeks and is home to several marinas and most of the charter fishing boats. Happy Harbor Restaurant, one of Deale's most famous landmarks, is located on Rockhold Creek.