Sebastian River High School is a co-educational International Baccalaureate high school in Sebastian, Florida. It opened August 1994 and is operated by the School District of Indian River County.
Serving 1,777 students in grades 9-12, Sebastian River High School ranks in the bottom 50% of all schools in Florida for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 27% (which is lower than the Florida state average of 52%). The percentage of students achieving proficiency in reading/language arts is 45% (which is lower than the Florida state average of 52%).
The student-teacher ratio of 23:1 is higher than the Florida state level of 17:1.
Minority enrollment is 52% of the student body (majority Hispanic), which is lower than the Florida state average of 66% (majority Hispanic).
Quick Facts (26-27)
- Grades: 9-12
- Enrollment: 1,777 students
- Student-Teacher Ratio: 23:1
- Minority Enrollment: 52%
- Graduation Rate: 98% (Top 10% in FL)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 27% (Btm 50%)
- Reading Proficiency: 45% (Btm 50%)
- Science Proficiency: 55% (Top 50%)
- Attendance Zone: Sebastian River High School serves the northeast part of Sebastian, FL, covering an area of approximately 164.8 square miles. Families within this zone typically have a 10-15 minute drive to the school, with the furthest edge being about 10.9 miles away.
- Source: National Center for Education Statistics (NCES), FL Dept. of Education
Top Rankings
Sebastian River High School ranks among the top 20% of public schools in Florida for:
Category
Attribute
Graduation Rate
School Overview
Sebastian River High School's student population of 1,777 students has declined by 7% over five school years.
The teacher population of 77 teachers has declined by 10% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,777 students
Showing 2016–2025. Full 31-year historical data available below ↓
Total Classroom Teachers
77 teachers
Showing 2016–2025. Full 31-year historical data available below ↓
Year Founded
1994
School Calendar
School Motto
Encouraging Innovation and Promoting Excellence
School Rankings
Sebastian River High School ranks within the bottom 50% of all 3,662 schools in Florida (based off of combined math and reading proficiency testing data).
The diversity score of Sebastian River High School is 0.64, which is less than the diversity score at state average of 0.70. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#2814 out of 3662 schools
(Bottom 50%)
(Bottom 50%)
Showing 2012–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
27%
52%
Showing 2012–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
45%
52%
Showing 2012–2022. Full 13-year historical data available below ↓
Science Test Scores (% Proficient)
55%
52%
Student-Teacher Ratio
23:1
17:1
Showing 2016–2025. Full 31-year historical data available below ↓
Asian
1%
3%
Showing 2016–2025. Full 31-year historical data available below ↓
Hispanic
34%
38%
Showing 2016–2025. Full 31-year historical data available below ↓
Black
14%
21%
Showing 2016–2025. Full 31-year historical data available below ↓
White
48%
34%
Showing 2016–2025. Full 31-year historical data available below ↓
Two or more races
3%
4%
Showing 2016–2025. Full 15-year historical data available below ↓
All Ethnic Groups
Showing 2016–2025. Full 31-year historical data available below ↓
Graduation Rate
98%
88%
Showing 2014–2023. Full 13-year historical data available below ↓
Chronically Absent Students
(22-23)49%
33.8%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
47%
42%
Showing 2016–2025. Full 31-year historical data available below ↓
Eligible for Reduced Lunch
6%
4%
Showing 2016–2025. Full 27-year historical data available below ↓
School Statewide Testing
School District Name
Sports
School Mascot
Sharks
Source: National Center for Education Statistics (NCES), FL Dept. of Education
Frequently Asked Questions
What is Sebastian River High School's ranking?
Sebastian River High School is ranked #2814 out of 3,662 schools, which ranks it among the bottom 50% of public schools in Florida.
What schools are Sebastian River High School often compared to?
Sebastian River High Schoolis often viewed alongside schools like Vero Beach High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
27% of students have achieved math proficiency (compared to the 52% FL state average), while 45% of students have achieved reading proficiency (compared to the 52% FL state average).
What is the graduation rate of Sebastian River High School?
The graduation rate of Sebastian River High School is 98%, which is higher than the Florida state average of 88%.
How many students attend Sebastian River High School?
1,777 students attend Sebastian River High School.
What is the racial composition of the student body?
48% of Sebastian River High School students are White, 34% of students are Hispanic, 14% of students are Black, 3% of students are Two or more races, and 1% of students are Asian.
What is the student-teacher ratio of Sebastian River High School?
Sebastian River High School has a student ration of 23:1, which is higher than the Florida state average of 17:1.
What grades does Sebastian River High School offer ?
Sebastian River High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Sebastian River High School part of?
Sebastian River High School is part of Indian River School District.
School Reviews
5 10/10/2025
This school is amazing. The teachers are great, and the administration is outstanding. Sebastian offers a wide variety of school Clubs, as well as sports. My son didn't like his old school back in New York, but when we moved here to Sebastian, it's like he lives only for school. If your looking to move down to Sebastian,
I TRULY recommend this school!
5 10/10/2025
This school needs to have more activities because my daughter and a bunch of her friend just love Japanese anime . But they have no where to learn the culture or the history of it and this is the lone thing i dislike about this school . But in the end i believe this school is great .
2 10/10/2025
So today (9-27-18) my kids come home from school...they qualify for free lunches but the applications had expired. My kids tell me that they are taking an abundance of the kids school lunches since their app had expired... My problem is as a parent that I was in no way informed that this had happened and my kids had food pretty much pulled from their mouth. And since there appears to be a lot of people that this is happening to in one day then I believe the school sent out no notice at all! There is no way that many parents didn't just do the application. This is wrong and someone should be apologizing for singling out the kids and embarrassing them they way they have for their negligence.
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