There are 25 US Post Offices in Brevard County serving a total of 504,249 residents equating to 20,170 residents per post office. It's estimated that approximately 804,838 packages are handled across the 25 county post offices annually. Brevard County is a county in the state of Florida. As of the 2010 census, the population was 543,376, making it the 10th largest county in Florida. The official county seat has been located in Titusville since 1894. Brevard County comprises the Palm Bay\u2013Melbourne\u2013Titusville, FL Metropolitan Statistical Area. It is located along the east Florida coast along the Atlantic Ocean. Influenced by the presence of the John F. Kennedy Space Center, Brevard County is also known as the Space Coast. As such, it was designated with the telephone area code 321, as in 3-2-1 liftoff. The county is named after Theodore Washington Brevard, an early settler, and state comptroller."