Coronado is a city in San Diego County, California, United States. The population was 24,100 at the 2000 census. Coronado is Spanish for 'the crowned one", and thusly it is nicknamed The Crown City. It is also nicknamed The Tent City, referring to tourists' tents that once lined Coronado Beach during the summer-vacation season.read full wikipedia reference about Coronado, CaliforniaOTHER POPULAR DESTINATIONS IN CALIFORNIA