Welcome to Delcastle Technical High School, the premier career and technical high school in Delaware. Since 1969, at Delcastle, we S.E.T. students up for success:
- We Serve students with a superior CTE and academic learning experience. - We Empower students to lead within our school and their community. - We Transform the current and future lives of our students.
Our diverse student population and outstanding staff collaboratively create a positive and safe learning environment that prepares students for post-secondary success. We are proud to offer the largest number of career and technical education programs (CTE) in the state with twenty-four career areas complemented by our high-quality academics. Additionally, we offer students multiple leadership opportunities and extracurricular activities to enhance the overall learning experience for all students.
Each day, our goal is to create a learning environment that is welcoming to all, one that recognizes and appreciates the diverse background of our learning community and builds positive connections with all stakeholders. Through this continued work, we believe that our students will be well prepared for their post-secondary aspirations and S.E.T. up for success.
I encourage you to explore our school website and follow us on social media to learn more about Delcastle and all we offer.
At Delcastle Technical High School, students don't just prepare for the future, they become the Champions who shape it.
With 24 nationally recognized career programs, a thriving athletics program, a strong presence in five CTSOs, and over 50 clubs, honor societies, leadership organizations, and performing arts, every student has the chance to lead, grow, and make an impact.
We believe in more than career readiness; we believe in purpose. That's why we proudly S.E.T. students up for success, empowering them to Serve, Empower, and Transform their communities and themselves. And we do it the only way that lasts: Stronger Together.
Join a school where excellence is tradition, innovation is our future, and every Cougar is a Champion in the making.
Delcastle students made the entire First State proud this June, traveling to Atlanta to compete against the best career and technical education students in the country, and returning home as national champions.
We are proud to celebrate Mrs. Sarah Dunn, who has been named Delcastle’s 2026–2027 Teacher of the Year, a well-deserved recognition of her dedication, passion, and lasting impact on students both inside and outside the classroom.
With record membership and the largest competitive delegation in Delaware, 199 Delcastle students are set to lead the way at the 2026 Delaware SkillsUSA State Leadership & Skills Conference.