South Gallia High School is a public high school in Mercerville, Ohio United States. Because Mercerville does not have its own US Post Office, its mailing address is considered Crown City, despite being 7 miles north of Crown City.
Serving 137 students in grades 9-12, South Gallia High School ranks in the bottom 50% of all schools in Ohio for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 40-49% (which is lower than the Ohio state average of 54%). The percentage of students achieving proficiency in reading/language arts is 60-69% (which is approximately equal to the Ohio state average of 60%).
The student-teacher ratio of 9:1 is lower than the Ohio state level of 17:1.
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 137 students
- Student-Teacher Ratio: 9:1
- Graduation Rate: ≥90% (Top 50% in OH)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 40-49% (Btm 50%)
- Reading Proficiency: 60-69% (Top 50%)
- Science Proficiency: 40-49% (Btm 50%)
- Source: National Center for Education Statistics (NCES), OH Dept. of Education
Top Rankings
South Gallia High School ranks among the top 20% of public schools in Ohio for:
Category
Attribute
Percent Eligible For Free Lunch
Community Size
Student Attention
School Overview
South Gallia High School's student population of 137 students has declined by 15% over five school years.
The teacher population of 16 teachers has declined by 33% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
137 students
Total Classroom Teachers
16 teachers
Colors
Gold, Red
School Calendar
School Rankings
South Gallia High School ranks within the bottom 50% of all 3,181 schools in Ohio (based off of combined math and reading proficiency testing data).
The diversity score of South Gallia High School is 0.00, which is less than the diversity score at state average of 0.54. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1763 out of 3181 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
40-49%
54%
Reading/Language Arts Test Scores (% Proficient)
60-69%
60%
Science Test Scores (% Proficient)
40-49%
63%
Student-Teacher Ratio
9:1
17:1
White
100%
65%
All Ethnic Groups
Graduation Rate
≥90%
86%
Chronically Absent Students
(22-23)27.7%
30.8%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
98%
42%
Eligible for Reduced Lunch (13-14)
12%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), OH Dept. of Education
Frequently Asked Questions
What is South Gallia High School's ranking?
South Gallia High School is ranked #1763 out of 3,181 schools, which ranks it among the bottom 50% of public schools in Ohio.
What percent of students have achieved state testing proficiency in math and reading?
40-49% of students have achieved math proficiency (compared to the 54% OH state average), while 60-69% of students have achieved reading proficiency (compared to the 60% OH state average).
What is the graduation rate of South Gallia High School?
The graduation rate of South Gallia High School is 90%, which is higher than the Ohio state average of 86%.
How many students attend South Gallia High School?
137 students attend South Gallia High School.
What is the racial composition of the student body?
100% of South Gallia High School students are White.
What is the student-teacher ratio of South Gallia High School?
South Gallia High School has a student ration of 9:1, which is lower than the Ohio state average of 17:1.
What grades does South Gallia High School offer ?
South Gallia High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is South Gallia High School part of?
South Gallia High School is part of Gallia County Local School District.
School Reviews
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