Delmar High School

As a low-enrollment senior high in Delmar, Delaware, Delmar High School enrolls 713 students from grades 9 through 12, operated by Delmar School District. That puts it 33% smaller than the typical public school in Delaware, which averages around 1,068 students.

Delmar School District runs 2 schools in total, collectively educating 1,445 students. Delmar High School is one of those campuses.

For racial and ethnic makeup, Delmar High School logs that 58% of the student body identifies as White. The remainder looks like 16% Black, 15% Hispanic, 6% multiracial, 4% Asian. The wider county runs roughly 74% White, putting the school's mix visibly less White than the area baseline.

Looking at the economic backdrop, On paper, Delmar High School has 35 full-time-equivalent teachers, translating to a class-load average of around 20.4:1. The state averages around 16.6:1, so this campus is higher than the state norm typical.

In the broader community, community-level numbers for Sussex County indicate the typical household earns roughly $81,497 per year, 33% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 8%. In all, Sussex County runs 55 public schools (combined enrollment of about 32,366 students), of which Delmar High School is one.

Delmar Middle School is the nearest neighboring public school, about 0.0 miles from this campus. 2 of the 8 nearest public schools sit inside a five-mile radius.

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

Five-year trend. Looking back 7 years, enrollment at Delmar High School has expanded 9%, going from 652 students in 2018 to 713 in 2025. White enrollment moved from 71% to 58% across the same window. The student-to-teacher ratio widened from 18.6:1 in 2018 to 20.4:1 today.

On allk12, the feed for Delmar High School typically covers fundraisers, lost-and-found posts, and report-card season. Posting is open to anyone connected to the school.