What is the zip code that includes the metropolitan area of Jacksonville, Florida?
Area code 904 Area Code 904 is the telephone area code in use for most of the First Coast (northeast) region of the state of Florida, including all of the metropolitan area of Jacksonville. It includes all of Duval County, St. Johns County, Nassau County, Baker County and Clay County.
Media in Jacksonville, Florida Jacksonville, Florida is served by local media, as well as regional and national media. As of 2017, Jacksonville is ranked as the 47th largest media market, with 688,500 homes. Radio and television broadcasts are governed by the FCC.