Delmar High School is a public high school in Delmar, a community in Sussex County, Delaware.
Serving 714 students in grades 9-12, Delmar High School ranks in the top 30% of all schools in Delaware for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 35-39% (which is higher than the Delaware state average of 29%). The percentage of students achieving proficiency in reading/language arts is 50-54% (which is higher than the Delaware state average of 42%).
The student:teacher ratio of 20:1 is higher than the Delaware state level of 14:1.
Minority enrollment is 41% of the student body (majority Black and Hispanic), which is lower than the Delaware state average of 61% (majority Black).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 714 students
- Student:Teacher Ratio: 20:1
- Minority Enrollment: 41%
- Graduation Rate: 90-94% (Top 50% in DE)
- Overall Testing Rank: Top 30%
- Math Proficiency: 35-39% (Top 30%)
- Reading Proficiency: 50-54% (Top 20%)
- Science Proficiency: 35-39% (Top 20%)
- Source: National Center for Education Statistics (NCES), DE Dept. of Education
Top Rankings
Delmar High School ranks among the top 20% of public schools in Delaware for:
Category
Attribute
Most improved public schools
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Delmar High School's student population of 714 students has grown by 8% over five school years.
The teacher population of 36 teachers has declined by 12% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
714 students
Gender %
Total Classroom Teachers
36 teachers
Year Founded
1928
Colors
Blue, Orange
School Rankings
Delmar High School ranks within the top 30% of all 201 schools in Delaware (based off of combined math and reading proficiency testing data).
The diversity score of Delmar High School is 0.61, which is less than the diversity score at state average of 0.71. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#47 out of 201 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
35-39%
29%
Reading/Language Arts Test Scores (% Proficient)
50-54%
42%
Science Test Scores (% Proficient)
35-39%
21%
Student : Teacher Ratio
20:1
14:1
American Indian
n/a
n/a
Asian
4%
4%
Hispanic
13%
20%
Black
16%
31%
White
59%
39%
Hawaiian
n/a
n/a
Two or more races
8%
6%
All Ethnic Groups
Graduation Rate
90-94%
88%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
13%
33%
Eligible for Reduced Lunch (12-13)
5%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), DE Dept. of Education
School Notes
- School Mascot: Wildcat
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Delmar High School's ranking?
Delmar High School is ranked #47 out of 201 schools, which ranks it among the top 30% of public schools in Delaware.
What schools are Delmar High School often compared to?
Delmar High Schoolis often viewed alongside schools like Indian River High School, Sussex Central High School, Cape Henlopen High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
35-39% of students have achieved math proficiency (compared to the 29% DE state average), while 50-54% of students have achieved reading proficiency (compared to the 42% DE state average).
What is the graduation rate of Delmar High School?
The graduation rate of Delmar High School is 90-94%, which is higher than the Delaware state average of 88%.
How many students attend Delmar High School?
714 students attend Delmar High School.
What is the racial composition of the student body?
59% of Delmar High School students are White, 16% of students are Black, 13% of students are Hispanic, 8% of students are Two or more races, and 4% of students are Asian.
What is the student:teacher ratio of Delmar High School?
Delmar High School has a student ration of 20:1, which is higher than the Delaware state average of 14:1.
What grades does Delmar High School offer ?
Delmar High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Delmar High School part of?
Delmar High School is part of Delmar School District.
School Calendar
View the Delmar High School below. Note key dates such as:
Event
Date
Spring Break: Schools & Offices Closed
April 03, 2026 (Friday)
Seniors Final Exams/Seniors Last Day
May 21, 2026 (Thursday)
Students Last Day: 11:45am Dismissal
June 09, 2026 (Tuesday)
School Reviews
5 5/17/2016
I school choice my 2 boys to this school. You cannot find a better group of people and the sense of commitment and responsibility is found everywhere. It's a small school so you get to know the teachers and they know your kids. I have committed to drive (no bus for school choice) 20 minutes at least 2 times daily sometimes 4 and it's worth every drop of gasoline!
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