Indian River High School is a part of the Indian River School District, located in Dagsboro, Delaware, in southern Sussex County. Indian River High School is one of two high schools in the district, along with Sussex Central High School in Georgetown.
Serving 1,092 students in grades 9-12, Indian River High School ranks in the top 50% of all schools in Delaware for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 24% (which is lower than the Delaware state average of 31%). The percentage of students achieving proficiency in reading/language arts is 48% (which is higher than the Delaware state average of 42%).
The student-teacher ratio of 13:1 is lower than the Delaware state level of 14:1.
Minority enrollment is 39% of the student body (majority Hispanic), which is lower than the Delaware state average of 61% (majority Black).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,092 students
- Student-Teacher Ratio: 13:1
- Minority Enrollment: 39%
- Graduation Rate: 89% (Btm 50% in DE)
- Overall Testing Rank: Top 50%
- Math Proficiency: 24% (Btm 50%)
- Reading Proficiency: 48% (Top 50%)
- Science Proficiency: 28% (Top 30%)
- Source: National Center for Education Statistics (NCES), DE Dept. of Education
School Overview
Indian River High School's student population of 1,092 students has grown by 12% over five school years.
The teacher population of 82 teachers has grown by 9% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,092 students
Gender %
Total Classroom Teachers
82 teachers
School Calendar
Last Day of School
Thu. Jun 11, 2026
School Rankings
Indian River High School ranks within the top 50% of all 199 schools in Delaware (based off of combined math and reading proficiency testing data).
The diversity score of Indian River High School is 0.56, 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
#81 out of 199 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
24%
31%
Reading/Language Arts Test Scores (% Proficient)
48%
42%
Science Test Scores (% Proficient)
28%
21%
Student-Teacher Ratio
13:1
14:1
American Indian
n/a
n/a
Asian
1%
4%
Hispanic
26%
20%
Black
8%
31%
White
61%
39%
Hawaiian
1%
n/a
Two or more races
3%
6%
All Ethnic Groups
Graduation Rate
89%
88%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
23%
33%
Eligible for Reduced Lunch (12-13)
7%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), DE Dept. of Education
Frequently Asked Questions
What is Indian River High School's ranking?
Indian River High School is ranked #81 out of 199 schools, which ranks it among the top 50% of public schools in Delaware.
What schools are Indian River High School often compared to?
Indian River High Schoolis often viewed alongside schools like Cape Henlopen High School, Sussex Central High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
24% of students have achieved math proficiency (compared to the 31% DE state average), while 48% of students have achieved reading proficiency (compared to the 42% DE state average).
What is the graduation rate of Indian River High School?
The graduation rate of Indian River High School is 89%, which is higher than the Delaware state average of 88%.
How many students attend Indian River High School?
1,092 students attend Indian River High School.
What is the racial composition of the student body?
61% of Indian River High School students are White, 26% of students are Hispanic, 8% of students are Black, 3% of students are Two or more races, 1% of students are Asian, and 1% of students are Hawaiian.
What is the student-teacher ratio of Indian River High School?
Indian River High School has a student ration of 13:1, which is lower than the Delaware state average of 14:1.
What grades does Indian River High School offer ?
Indian River High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Indian River High School part of?
Indian River High School is part of Indian River School District.
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