DeLand, Florida. DeLand is a city in the U.S. state of Florida. It is the county seat of Volusia County. The city sits approximately 34 miles (55 km) north of the central business district of Orlando, and approximately 23 miles (37 km) west of the central business district of Daytona Beach. As of the 2010 U.S. Census, the city had a population of 27,031.