Delcastle Technical High School

Delcastle Technical High School is a large high school with an address in Wilmington, Delaware. The grade span is 9 through 12, and enrollment is 1,605 students. An average school in this group (high schools in Delaware) has about 1,068 students.

Federal data list 4 schools in New Castle County Vocational-Technical School District, with 4,812 students enrolled.

The most common group at Delcastle Technical High School is Hispanic students, at 44%. It is also 30% Black, 20% White, and 4% multiracial. New Castle County's residents are about 12% Hispanic, 32 points below the school's share. Pick two students at random and there is a 67% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.

Teacher staffing is 118 full-time equivalents, or about 13.6 students per teacher. On average, high schools in Delaware have 16.6:1, compared with 13.6:1 here.

County data help place the school in context: in New Castle County, the median household income is $91,166, about 40% of adults have at least a bachelor's degree, and roughly 7% of residents are in poverty. In all, New Castle County has 129 public schools and roughly 78,534 students.

The closest public school, Mote (Anna P.) Elementary School, is about 0.9 miles from Delcastle Technical High School. Other public schools within five miles: at least 8.

By NCES locale, the school is Suburb: Large, or in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Enrollment has been fairly stable: 1,576 in 2020-21 and 1,605 in 2024-25. There were more students per teacher in 2024-25 (13.6:1) than in 2020-21 (12.4:1).

Conversations here can range across school safety, transportation, and start times. Posting is open to anyone connected to the school.