Pasadena is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. The population was 12,093 at the 2000 census.
Pasadena is located at 39°6′46″N 76°33′7″W / 39.11278°N 76.55194°W / 39.11278; -76.55194 (39.112809, -76.551871).
According to the United States Census Bureau, the CDP has a total area of 7.7 mi² (19.9 km²). 7.4 mi² (19.2 km²) of it is land and 0.3 mi² (0.7 km²) of it (3.64%) is water.