Coastal city (pop., 2000: 64,112), northeastern Florida, U.S. Located south of Jacksonville, it was founded by Mathias Day in 1870 and incorporated in 1876. In 1926 the cities of Seabreeze, Daytona, and Daytona Beach were incorporated as Daytona Beach. The Ormond-Daytona beach of hard, white sand has been used for automobile speed trials since 1903. The city is known for the Daytona International Speedway.