 According to the 2010 American Community Survey, 14.2% of all adults over the age of 25 in Deltona have obtained a bachelor's degree, which was below the national average of 27.2% of adults over 25, and 84.7% of Deltona residents over the age of 25 have earned a high school diploma, as compared to the national average of 85.0%.Deltona had approximately 11,877 students enrolled in its public schools in the 2012–2013 school year.Three private schools are located in the city, offering both primary and secondary education.