Gibson Southern High School is a public high school located in Fort Branch, Indiana.
Serving 742 students in grades 9-12, Gibson Southern High School ranks in the top 30% of all schools in Indiana for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 40-44% (which is higher than the Indiana state average of 39%). The percentage of students achieving proficiency in reading/language arts is 60-64% (which is higher than the Indiana state average of 41%).
The student-teacher ratio of 19:1 is higher than the Indiana state level of 15:1.
Minority enrollment is 7% of the student body (majority Hispanic and Black), which is lower than the Indiana state average of 38% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 742 students
- Student-Teacher Ratio: 19:1
- Minority Enrollment: 7%
- Graduation Rate: ≥95% (Top 10% in IN)
- Overall Testing Rank: Top 30%
- Math Proficiency: 40-44% (Top 50%)
- Reading Proficiency: 60-64% (Top 10%)
- Science Proficiency: 35-39% (Top 50%)
- Source: National Center for Education Statistics (NCES), IN Dept. of Education
Top Rankings
Gibson Southern High School ranks among the top 20% of public schools in Indiana for:
Category
Attribute
Reading/Language Arts Proficiency
Graduation Rate
School Overview
Gibson Southern High School's student population of 742 students has stayed relatively flat over five school years.
The teacher population of 40 teachers has grown by 14% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
742 students
Total Classroom Teachers
40 teachers
Year Founded
1974
School Calendar
School Rankings
Gibson Southern High School ranks within the top 30% of all 1,743 schools in Indiana (based off of combined math and reading proficiency testing data).
The diversity score of Gibson Southern High School is 0.13, which is less than the diversity score at state average of 0.57. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#387 out of 1743 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
40-44%
39%
Reading/Language Arts Test Scores (% Proficient)
60-64%
41%
Science Test Scores (% Proficient)
35-39%
34%
Student-Teacher Ratio
19:1
15:1
American Indian
n/a
n/a
Asian
1%
3%
Hispanic
2%
15%
Black
1%
14%
White
93%
62%
Hawaiian
n/a
n/a
Two or more races
3%
6%
All Ethnic Groups
Graduation Rate
≥95%
88%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
18%
42%
Eligible for Reduced Lunch
6%
6%
School Statewide Testing
School District Name
South Gibson School Corporation School District
Source: National Center for Education Statistics (NCES), IN Dept. of Education
Frequently Asked Questions
What is Gibson Southern High School's ranking?
Gibson Southern High School is ranked #387 out of 1,743 schools, which ranks it among the top 30% of public schools in Indiana.
What schools are Gibson Southern High School often compared to?
Gibson Southern High Schoolis often viewed alongside schools like Princeton Community High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
40-44% of students have achieved math proficiency (compared to the 39% IN state average), while 60-64% of students have achieved reading proficiency (compared to the 41% IN state average).
What is the graduation rate of Gibson Southern High School?
The graduation rate of Gibson Southern High School is 95%, which is higher than the Indiana state average of 88%.
How many students attend Gibson Southern High School?
742 students attend Gibson Southern High School.
What is the racial composition of the student body?
93% of Gibson Southern High School students are White, 3% of students are Two or more races, 2% of students are Hispanic, 1% of students are Asian, and 1% of students are Black.
What is the student-teacher ratio of Gibson Southern High School?
Gibson Southern High School has a student ration of 19:1, which is higher than the Indiana state average of 15:1.
What grades does Gibson Southern High School offer ?
Gibson Southern High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Gibson Southern High School part of?
Gibson Southern High School is part of South Gibson School Corporation School District.
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