- Enrollment
- 3,085
- Students per teacher
- 18.8:1
- Resource Index
- 37/100
Other / mixed grade configuration · Marietta, GA
Garrison Mill Elementary School
Federal NCES profile for Garrison Mill Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 51/100.
2024-25 NCES dataOther / mixed grade configurationNCES 130129001935
👥 S:T ratio 42
🌟 Gifted program 70
🎓 Counselors 26
📋 Attendance 67
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Garrison Mill Elementary School earns 51/100 on the Resource Investment Index, with class sizes near the Georgia median.
- #8 of 30
- schools in Marietta · Resource Index
- 51
- Resource Index · Higher
- 14.4:1
- students per teacher
- 6.9%
- free-lunch eligible
Garrison Mill Elementary School has class sizes near the Georgia median. Computed live against every Georgia school reporting to NCES.
By Resource Investment Index, Garrison Mill Elementary School ranks #8 of 30 schools in Marietta, GA.
School address
CCD year-over-year · 2022-23 → 2023-24
-4 students YoY
Garrison Mill Elementary School held near 646 students from 2022-23 to 2023-24 (-4 headcount).
Teacher FTE lost 45.6 → 45.1 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-4 students YoY 130129001935 · Marietta, GA Other · MID · TRAD
649 enr · 14.4:1 · 6.9% lunch · RII 51
Nearest enrollment peer: Campbell High School (3,085 students)
Garrison Mill Elementary School held near 646 students from 2022-23 to 2023-24 (-4 headcount). Teacher FTE lost 45.6 → 45.1 across the same CCD years. Read with this school → · District book → · Georgia schools → · Find another →
Garrison Mill Elementary School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Campbell High
Campbell High School
3,085 students
- Osborne High S
Osborne High School
2,790 students
- Walton High Sc
Walton High School
2,705 students
- Pebblebrook Hi
Pebblebrook High School
2,574 students
- North Cobb Hig
North Cobb High School
2,463 students
- This school 649
Garrison Mill Elementary School
649 students
What this shows Garrison Mill Elementary School reports 649 students on the CCD universe file.
How Garrison Mill Elementary School compares
Garrison Mill Elementary School held steady on CCD headcount: ratios and free-lunch share vs Georgia and U.S. means.
| Metric | This school | vs Georgia | Georgia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.4:1 | ▼ 0% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 6.9% | ▼ 89% | 60.7% | 51.7% |
| Enrollment | 649 | top 48% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.4:1
Leaner classes than 53% of US schools, a middle-of-the-pack class size.
649
Bigger than 77% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
6.9%
free-lunch eligible
- 89% below the Georgia average of 60.7%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
14.4:1
students per teacher
- 0% above state mean
Top 55% in Georgia - lower ratio than 45% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
13.3%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$14,680
per pupil, district-wide
- above Georgia avg of $14,615
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.8 FTE
Per 371 students, the combined health-and-guidance staffing load for this school.
Discipline context
2
in-school suspensions + 5 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 1.1 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 68.7%
Asian 11.6%
Hispanic or Latino 8.6%
African American 5.9%
Two or More 5.2%
Largest group: White at 68.7% of enrollment.
Student-body diversity index 50.1/100
Simpson diversity index - at 50.1, Garrison Mill Elementary School is about as mixed as the Georgia school average of 50.0.
Programs
Gifted & talented Yes
District finance for Cobb County reports $14,680 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Garrison Mill Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Campbell High School | Larger | Higher economic need | Higher S:T ratio |
| Osborne High School | Larger | Higher economic need | Higher S:T ratio |
| Walton High School | Larger | Similar economic need | Higher S:T ratio |
| Pebblebrook High School | Larger | Higher economic need | Higher S:T ratio |
| North Cobb High School | Larger | Higher economic need | Higher S:T ratio |
Comparisons are relative to Garrison Mill Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,790
- Students per teacher
- 17:1
- Resource Index
- 44/100
- Enrollment
- 2,705
- Students per teacher
- 19.7:1
- Resource Index
- 43/100
- Enrollment
- 2,574
- Students per teacher
- 17.8:1
- Resource Index
- 38/100
- Enrollment
- 2,463
- Students per teacher
- 17.5:1
- Resource Index
- 39/100
Similar other schools in Marietta
6 comparable other schools (grades Mixed) serving the same city.
Sope Creek Elementary School
Standard public school
1,104 students 15.3:1 students per teacher
East Side Elementary School
Standard public school
1,072 students 13.9:1 students per teacher
Cheatham Hill Elementary School
Standard public school
1,021 students 13.4:1 students per teacher
Brumby Elementary School
Standard public school
963 students 12.3:1 students per teacher
Mount Bethel Elementary School
Standard public school
898 students 13.2:1 students per teacher
Dowell Elementary School
Standard public school
898 students 13:1 students per teacher
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~649 students)
Frequently asked questions about Garrison Mill Elementary School
How many students attend Garrison Mill Elementary School?
Garrison Mill Elementary School has 649 students enrolled. It is a public school in Marietta, GA. CCD year-over-year: 650 (2022-23) → 646 (2023-24), nearly flat (-4).
What is the student-teacher ratio at Garrison Mill Elementary School?
The student-teacher ratio at Garrison Mill Elementary School is 14.4:1, which is 0% higher than the Georgia average of 14.4:1 and 8% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Garrison Mill Elementary School?
6.9% of students at Garrison Mill Elementary School are eligible for free lunch, compared to the Georgia average of 60.7%.
What is the racial and ethnic makeup of Garrison Mill Elementary School?
The largest demographic group at Garrison Mill Elementary School is White at 68.7% of enrollment, in Marietta, GA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.1/100.
What is the Resource Investment Index for Garrison Mill Elementary School?
Garrison Mill Elementary School has a Resource Investment Index of 51/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Garrison Mill Elementary School rank among schools in Marietta?
By Resource Investment Index, Garrison Mill Elementary School ranks #8 of 30 schools in Marietta, GA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Marietta on the city page.
What other schools are in Cobb County?
Besides Garrison Mill Elementary School, Cobb County also operates Campbell High School (3,085 students), Osborne High School (2,790 students), and Walton High School (2,705 students). See the Cobb County district page for the complete list.