Serving 649 students in grades Prekindergarten-5, Garrison Mill Elementary School ranks in the top 10% of all schools in Georgia for overall test scores (math proficiency is top 10%, and reading proficiency is top 10%).
The percentage of students achieving proficiency in math is 68% (which is higher than the Georgia state average of 39%). The percentage of students achieving proficiency in reading/language arts is 75% (which is higher than the Georgia state average of 40%).
The student-teacher ratio of 14:1 is equal to the Georgia state level of 14:1.
Minority enrollment is 31% of the student body (majority Asian and Hispanic), which is lower than the Georgia state average of 66% (majority Black).
Quick Facts (26-27)
- Grades: Prekindergarten-5
- Enrollment: 649 students
- Student-Teacher Ratio: 14:1
- Minority Enrollment: 31%
- Overall Testing Rank: Top 10% in GA
- Math Proficiency: 68% (Top 10%)
- Reading Proficiency: 75% (Top 5%)
- Science Proficiency: 75-79% (Top 5%)
- Attendance Zone: Garrison Mill Elementary School serves the northeast area of Marietta, GA, covering approximately 4 square miles. Most students can expect a short drive of 5-10 minutes to reach the school, with the farthest edge of the attendance zone located around 2.1 miles away.
- Source: National Center for Education Statistics (NCES), GA Dept. of Education
Top Rankings
Garrison Mill Elementary School ranks among the top 20% of public schools in Georgia for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Garrison Mill Elementary School's student population of 649 students has stayed relatively flat over five school years.
The teacher population of 46 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Prekindergarten-5
(No virtual instruction)
(No virtual instruction)
Total Students
649 students
Showing 2016–2025. View full 39-year historical data
Total Classroom Teachers
46 teachers
Showing 2016–2025. View full 39-year historical data
Year Founded
1984
School Calendar
School Rankings
Garrison Mill Elementary School ranks within the top 10% of all 2,192 schools in Georgia (based off of combined math and reading proficiency testing data).
The diversity score of Garrison Mill Elementary School is 0.50, which is less than the diversity score at state average of 0.72. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#118 out of 2192 schools
(Top 10%)
(Top 10%)
Showing 2013–2023. View full 14-year historical data
Math Test Scores (% Proficient)
68%
39%
Showing 2013–2023. View full 14-year historical data
Reading/Language Arts Test Scores (% Proficient)
75%
40%
Showing 2012–2022. View full 13-year historical data
Science Test Scores (% Proficient)
75-79%
40%
Student-Teacher Ratio
14:1
14:1
Showing 2016–2025. View full 39-year historical data
Asian
11%
5%
Showing 2016–2025. View full 32-year historical data
Hispanic
9%
20%
Showing 2016–2025. View full 30-year historical data
Black
6%
36%
Showing 2016–2025. View full 32-year historical data
White
69%
34%
Showing 2016–2025. View full 32-year historical data
Two or more races
5%
5%
Showing 2016–2025. View full 15-year historical data
All Ethnic Groups
Showing 2016–2025. View full 32-year historical data
Chronically Absent Students
(22-23)6.6%
26.2%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
11%
63%
Showing 2015–2025. View full 37-year historical data
Eligible for Reduced Lunch
1%
4%
Showing 2014–2025. View full 27-year historical data
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), GA Dept. of Education
Profile last updated:
Frequently Asked Questions
What is Garrison Mill Elementary School's ranking?
Garrison Mill Elementary School is ranked #118 out of 2,192 schools, which ranks it among the top 10% of public schools in Georgia.
What schools are Garrison Mill Elementary School often compared to?
Garrison Mill Elementary Schoolis often viewed alongside schools like Rocky Mount Elementary School, Tritt Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
68% of students have achieved math proficiency (compared to the 39% GA state average), while 75% of students have achieved reading proficiency (compared to the 40% GA state average).
How many students attend Garrison Mill Elementary School?
649 students attend Garrison Mill Elementary School.
What is the racial composition of the student body?
69% of Garrison Mill Elementary School students are White, 11% of students are Asian, 9% of students are Hispanic, 6% of students are Black, and 5% of students are Two or more races.
What is the student-teacher ratio of Garrison Mill Elementary School?
Garrison Mill Elementary School has a student ration of 14:1, which is equal to the Georgia state average of 14:1.
What grades does Garrison Mill Elementary School offer ?
Garrison Mill Elementary School offers enrollment in grades Prekindergarten-5 (No virtual instruction).
What school district is Garrison Mill Elementary School part of?
Garrison Mill Elementary School is part of Cobb County School District.
School Reviews
2 10/10/2025
26 students in my son's 3rd grade class. 25 in my daughter's 4th grade class. The school is not STEM certified and does not teach a foreign language.
2 10/10/2025
I had other children go through this school years ago. I enrolled my youngest, this will be our last year attending here and I'm glad.
5 10/10/2025
Scores speak for themselves
5 10/10/2025
This is a great school. I have experienced good relationships between teachers and parents.The school has done wonders for by special needs children.There is a great variety of clubs after school.Surprised at the negative reviews here. Many parents move to this area for the school.
5 10/10/2025
I have been surprised by the high quality of teachers at Garrison Mill. We have zero complaints and feel unbelievable lucky to have had our daughter attend this school.
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