Pasadena is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. The population was 24,287 at the 2010 census. The areas of Lake Shore, Riviera Beach and Pasadena are collectively referred to as Pasadena by residents. As all areas are governed by Anne Arundel County, there is no distinctions in services such as fire, police, or public schools. According to the United States Census Bureau, the CDP has a total area of 16.1 square miles (41.7 km2). 14.9 square miles (38.7 km2) of it is land, and 1.2 square miles (3.1 km2) of it (7.31%) is water.