Delcastle opened in the fall of 1969 as the New Castle County Vocational-Technical School in response to an increased demand for vocational schools in Delaware.[4][5][6] As the county's only vocational-technical high school, it was overwhelmingly popular; by 1971, they were receiving applications from more than three times the number of students they had capacity for.[7] By 1973, the county began planning three additional vocational-technical schools to help handle the extreme interest in Delcastle.[8]
In addition to 10 credits within their chosen program, Delcastle students must meet Delaware core standards: 4 credits of English and math; 3 science and social studies credits; 2 language credits; 1 physical education credit; and 0.5 health credits.[9] Each of the career programs has its own required courses, which allows students to gain the most contextual education possible.[9] Ninth grade students have the opportunity to do rotations in different career areas so they can find the best fit.[10]
There are 24 career programs separated into six distinct areas at Delcastle:[11]
Business, Communication, and Computers: Business Technology; Digital Media; Graphic Arts; and IT Academy[9]
Construction Technologies: Carpentry; Electrical Trades; Heating Ventilation & AC; Plumbing; Sheet Metal Fabrication; and Welding/Fabrication Technology[9]
Health Services: Biomedical Science & Allied Health; Dental Assisting; Medical Assisting; Nursing Technology; and Surgical Technology[9]
Public and Consumer Services: Cosmetology; Culinary Arts; Production & Imaging Technology; and the Teacher Academy for K-12[9]
Science, Energy, and Drafting Technologies: Chemical Lab Technology and Technical Drafting & Design[9]
Transportation: Auto Body; Auto-Technology; and Aviation Technology[9]