Real Estate Advisor asked: The community of Coronado is located on the central coast of San Diego County. This 13.5 square mile peninsula is accessible via the famous Coronado Bay Bridge, by water ferry from Downtown San Diego, or through Imperial Beach via highway 75.The real estate and homes for sale in Coronado are some of the most expensive properties in San Diego County. The number of homes sold in a particular year is relatively low. For example, during the period from January through July 2006, approximately 64 single-family homes sold. Approximately 79 homes sold for the same period in 2005. More >