Enrollment
4
Georgia · 2024-25 NCES data
High school (grades 9-12) · Marietta, GA
Federal NCES profile for George W. Hartmann Center, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
The verdict
George W. Hartmann Center earns 41/100 on the Resource Investment Index, with class sizes smaller than 99% of Georgia schools. It is also one of the smallest schools in Georgia.
George W. Hartmann Center has class sizes smaller than 99% of Georgia schools. Computed live against every Georgia school reporting to NCES.
By Resource Investment Index, George W. Hartmann Center ranks #1 of 9 high schools in Marietta, GA.
NCES ID 130351003700 Verify on NCES CCD record →
Enrollment
4
Georgia · 2024-25 NCES data
Teachers (FTE)
1.0
Federal CCD staff survey
Students per teacher
4:1
vs 14.4:1 Georgia avg
-72% vs state
How George W. Hartmann Center compares with Georgia and U.S. medians
Smaller classes than state median
4:1 - 10.4 below the Georgia state median of 14.4:1, indicating smaller average class loads than typical schools in the state.
George W. Hartmann Center is a small high school in Marietta, Georgia, enrolling 4 students.
Classes run notably small here: at 4:1, George W. Hartmann Center is leaner than roughly 99% of Georgia schools and 72% under the state's 14.4:1 norm, more adult attention per pupil than most peers.
This is a small campus: fewer students than 99% of Georgia schools, with 4 enrolled.
Its Resource Investment Index outscores 94% of the 2,314 Georgia schools with a score on record, a top-tier result on this measure.
Its student body is led by Hispanic or Latino (75%) and White (25%) (diversity index 38/100).
No Advanced Placement courses are reported for this campus in the federal data.
Among Marietta's high schools, it stands alongside Osborne High School (2,790 students): George W. Hartmann Center is smaller than that campus by headcount and runs leaner classes (4:1 vs 17:1).
Marietta City also operates Marietta High School (2,526 students) and Marietta Middle School (1,352 students) alongside George W. Hartmann Center.
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
George W. Hartmann Center on the metrics families compare, against Georgia and U.S. means.
| Metric | This school | vs Georgia | Georgia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 4:1 | ▼ 72% | 14.4:1 | 15.7:1 |
| Enrollment | 4 | top 100% | - | - |
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 75.0% of enrollment.
Simpson diversity index - at 37.5, George W. Hartmann Center is less mixed than the Georgia school average of 50.0.
District-wide per-pupil expenditure for Marietta City, which includes George W. Hartmann Center.
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 | No free-lunch data | Higher S:T ratio |
| Marietta Middle School | Larger | No free-lunch data | Higher S:T ratio |
| Lockheed Elementary School | Larger | No free-lunch data | Higher S:T ratio |
| Marietta Sixth Grade Academy | Larger | No free-lunch data | Higher S:T ratio |
| West Side Elementary School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to George W. Hartmann Center's own figures; each column derives from NCES Common Core of Data.
6 comparable high schools (grades 9-12) 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 George W. Hartmann Center'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.
George W. Hartmann Center has 4 students enrolled. It is a high school in Marietta, GA.
The student-teacher ratio at George W. Hartmann Center is 4:1, which is 72% lower than the Georgia average of 14.4:1 and 75% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at George W. Hartmann Center is Hispanic or Latino at 75.0% of enrollment, in Marietta, GA.
George W. Hartmann Center has a Resource Investment Index of 41/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, George W. Hartmann Center ranks #1 of 9 high 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 high schools in Marietta on the city page.
George W. Hartmann Center earns 41/100 on the Resource Investment Index, with class sizes smaller than 99% of Georgia schools. It is also one of the smallest schools in Georgia. 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 George W. Hartmann Center, 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, “George W. Hartmann Center, 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/george-w-hartmann-center-ga
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