Not to be confused with Broward County, Florida. 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–Melbourne–Titusville, FL Metropolitan Statistical Area. It is located along the east Florida coast along the Atlantic Ocean.