Volusia County is a county located in the U.S. state of Florida. Daytona Beach is Volusia's most well-known city, its county seat is DeLand, and its largest city is Deltona. Volusia is the sole county of the Deltona-Daytona Beach-Ormond Beach Metropolitan Area, which is the 100th-largest metro area by population in the U S. Volusia County has a total area of approximately 1,432 square miles of which 77% is land and 23% water. As of the 2000 census, there were 443,343 people, 184,723 households, and 120,069 families residing in Volusia County, FL.