Enrollment
678
Georgia · 2024-25 NCES data
Middle school (grades 6-8) · Marietta, GA
Federal NCES profile for Marietta Sixth Grade Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
The verdict
Marietta Sixth Grade Academy earns 48/100 on the Resource Investment Index, with class sizes near the Georgia median.
Marietta Sixth Grade Academy has class sizes near the Georgia median. Computed live against every Georgia school reporting to NCES.
By Resource Investment Index, Marietta Sixth Grade Academy ranks #4 of 12 middle schools in Marietta, GA.
NCES ID 130351002621 Verify on NCES CCD record →
Enrollment
678
Georgia · 2024-25 NCES data
Teachers (FTE)
49.0
Federal CCD staff survey
Students per teacher
13.8:1
vs 14.4:1 Georgia avg
-4% vs state
Free-lunch eligible
59.1%
vs 60.7% Georgia avg
-3% vs state
How Marietta Sixth Grade Academy compares with Georgia and U.S. medians
At or below state median
13.8:1 - 0.6 below the Georgia state median of 14.4:1, indicating smaller average class loads than typical schools in the state.
Marietta Sixth Grade Academy is a higher-need, mid-sized middle school in Marietta, Georgia, enrolling 678 students.
At 13.8:1, its student-teacher ratio sits close to the Georgia median, within a few percentage points of the 14.4:1 state norm, neither notably crowded nor notably small.
Its free-meal eligibility rate of 59.1% lands close to the Georgia typical range, neither a high- nor low-need campus by this measure.
With 678 students, its enrollment sits close to the Georgia median campus size.
Its Resource Investment Index lands in the upper third of 2,314 scored Georgia schools.
Against 395 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #46.
Its student body is led by Hispanic or Latino (41%) and African American (31%) (diversity index 68/100).
Counselor availability sits well past the ASCA benchmark, roughly 339 students sharing each counselor, though short of the most stretched campuses.
Attendance runs somewhat below the norm, with 21.5% of students chronically absent per the 2021-22 civil-rights collection.
Discipline events run high: 244 in- and out-of-school suspensions were reported for 678 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 6 expulsions at this campus for 2021-22.
Among Marietta's middle schools, it stands alongside East Cobb Middle School (1,352 students): Marietta Sixth Grade Academy is smaller than that campus by headcount and runs leaner classes (13.8:1 vs 16.9:1).
Marietta City also operates Marietta High School (2,526 students) and Marietta Middle School (1,352 students) alongside Marietta Sixth Grade Academy.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Marietta Sixth Grade Academy on the metrics families compare, against Georgia and U.S. means.
| Metric | This school | vs Georgia | Georgia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.8:1 | ▼ 4% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 59.1% | ▼ 3% | 60.7% | 51.7% |
| Enrollment | 678 | top 44% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: Hispanic or Latino at 41.4% of enrollment.
Simpson diversity index - at 68.3, Marietta Sixth Grade Academy is more mixed than the Georgia school average of 50.0.
District-wide per-pupil expenditure for Marietta City, which includes Marietta Sixth Grade Academy.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Marietta High School | Larger | Lower economic need | Similar S:T ratio |
| Marietta Middle School | Larger | Similar economic need | Similar S:T ratio |
| Lockheed Elementary School | Similar size | Higher economic need | Lower S:T ratio |
| West Side Elementary School | Similar size | Lower economic need | Similar S:T ratio |
| Dunleith Elementary School | Similar size | Higher economic need | Lower S:T ratio |
Comparisons are relative to Marietta Sixth Grade Academy's own figures; each column derives from NCES Common Core of Data.
6 comparable middle schools (grades 6-8) serving the same city.
Matched by enrollment size and by staffing ratio across all of Georgia, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Marietta Sixth Grade Academy's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Marietta Sixth Grade Academy has 678 students enrolled. It is a middle school in Marietta, GA.
The student-teacher ratio at Marietta Sixth Grade Academy is 13.8:1, which is 4% lower than the Georgia average of 14.4:1 and 12% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
59.1% of students at Marietta Sixth Grade Academy are eligible for free lunch, compared to the Georgia average of 60.7%.
The largest demographic group at Marietta Sixth Grade Academy is Hispanic or Latino at 41.4% of enrollment, in Marietta, GA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 68.3/100.
Marietta Sixth Grade Academy has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Marietta Sixth Grade Academy ranks #4 of 12 middle 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 middle schools in Marietta on the city page.
Marietta Sixth Grade Academy earns 48/100 on the Resource Investment Index, with class sizes near the Georgia median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Marietta Sixth Grade Academy, Marietta City also operates Marietta High School (2,526 students), Marietta Middle School (1,352 students), and Lockheed Elementary School (734 students). See the Marietta City district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Marietta Sixth Grade Academy, Marietta GA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/marietta-sixth-grade-academy-ga/
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