Volusia County is a county located in the state of Florida. The U.S. Census Bureau 2005 estimate for the county is 496,575. Although Daytona Beach is Volusia County's most well-known city, its county seat is DeLand, and its largest city is Deltona. Volusia County is the sole county of the Deltona-Daytona Beach-Ormond Beach, Florida, Metropolitan Statistical Area, which is the 101st-largest metro area by population in the United States as of the 2004 Census estimate. It also makes up the northeast end of the I-4 Corridor.

According to the U.S. Census Bureau, the county has a total area of 3,710 km² (1,432 mi²). 2,857 km² (1,103 mi²) of it is land and 853 km² (329 mi²) of it is water, much of it in the Atlantic Ocean. The total area is 22.98% water. As of the census² of 2000, there were 443,343 people, 184,723 households, and 120,069 families residing in the county. The population density was 155/km² (402/mi²). There were 211,938 housing units at an average density of 74/km² (192/mi²). The racial makeup of the county was 86.11% White, 9.29% Black or African American, 0.31% Native American, 1.00% Asian, 0.04% Pacific Islander, 1.82% from other races, and 1.43% from two or more races. 6.57% of the population were Hispanic or Latino of any race.