Delcastle Technical High School

Delcastle Technical High School, a big high school in Wilmington, Delaware, overseen by New Castle County Vocational-Technical School District, caters to 1,605 students, covering grades 9 through 12. Compared to the state average of about 1,068 students per school, that is 50% above typical.

Within New Castle County Vocational-Technical School District, which oversees 4 schools and 4,812 students, Delcastle Technical High School is one campus in the system.

In terms of who attends, Delcastle Technical High School shows that the largest single group is Hispanic at 44%, but no single group is in the majority. Other groups include 30% Black, 20% White, 4% multiracial. By comparison, New Castle County as a whole is about 12% Hispanic, so the school skews considerably more Hispanic than its surroundings.

Looking at school resources, Staff filings list 118 full-time-equivalent teachers, which works out to roughly 13.6:1 students per teacher. The state averages around 16.6:1, so this campus is tighter than the state norm typical.

In the broader community, the surrounding county (New Castle County) shows that the typical household earns roughly $91,166 per year, 40% of adults hold a bachelor's degree or higher, and roughly 7% of residents live below the federal poverty line. Delcastle Technical High School is one of 129 public schools in New Castle County (combined enrollment of about 78,534 students).

Nearest neighbor: Mote (Anna P.) Elementary School, around 0.9 miles off. Counting just inside five miles, 8 other public schools cluster around Delcastle Technical High School.

Geographically, the school is in a commuter-belt area.

Looking at the recent track record. Looking back 7 years, enrollment at Delcastle Technical High School has edged up 4%, going from 1,544 students in 2018 to 1,605 in 2025. The White share of enrollment decreased from 28% to 20% over that span. Class-load math has widened: from 12.2:1 in 2018 to 13.6:1 in 2025.

On allk12, recent activity here tends to focus on pickup logistics, teacher feedback, and after-school programs. Parents, students, alumni, and staff are welcome to weigh in.