Delcastle Technical High School Home

Delcastle Principal Mr. John Greenly

Welcome To Delcastle Technical HS

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.

Thank you,

Mr. John Greenly, M.Ed.
Principal
Delcastle Technical High School
 
Delcastle Technical High School Cougars
At Delcastle Technical High School, students don't just prepare for the future—they 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, Delcastle Technical offers every student 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 by empowering them to Serve, Empower, and Transform their communities and themselves.
 
Join a school where excellence is tradition—and innovation is our future.
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Back to School Guide 2025

Be S.E.T. up for a successful start to your 2025-2026 school year! Check out these resources in our "Back to School Guide."

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Earn
Get Ahead
  • 23 Career Programs (Delaware's Largest Vo-Tech)
  • 91% Seniors Eligible for Co-Op with $8K Average Individual Earnings
  • 200+ Business & Industry Partners
  • Highest # Of Students In Delaware Represented At National Skills USA
  • $1.4 Million In Scholarships & Grants Earned
  • College Credits for Academic & CTE Courses through Dual Enrollment