Enrollment
2,790
Georgia · 2024-25 NCES data
High school (grades 9-12) · Marietta, GA
Osborne High School
Federal NCES profile for Osborne High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 58/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 130129000521
👥 S:T ratio 32
📚 AP courses 100
🌟 Gifted program 70
🎓 Counselors 30
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Osborne High School earns 58/100 on the Resource Investment Index, with class sizes larger than 84% of Georgia schools. It is also one of the largest schools in Georgia.
- #2 of 9
- high schools in Marietta · Resource Index
- 58
- Resource Index · Higher
- 17:1
- large classes for Georgia
- 63.9%
- free-lunch eligible
Osborne High School has class sizes larger than 84% of Georgia schools. Computed live against every Georgia school reporting to NCES.
By Resource Investment Index, Osborne High School ranks #2 of 9 high schools in Marietta, GA.
School address
Teachers (FTE)
164.0
Federal CCD staff survey
Students per teacher
17:1
vs 14.4:1 Georgia avg
+18% vs state
Free-lunch eligible
63.9%
vs 60.7% Georgia avg
+5% vs state
Student-teacher ratio in context
How Osborne High School compares with Georgia and U.S. medians
What stands out at Osborne High School
Osborne High School is a higher-need, large high school in Marietta, Georgia, enrolling 2,790 students.
Class loads run somewhat heavier than typical: 17:1 puts it in the larger third of Georgia schools by student-teacher ratio.
Its free-meal eligibility rate of 63.9% lands close to the Georgia typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in Georgia, bigger than 99% of state schools at 2,790 students.
Its Resource Investment Index sits near the middle of the pack among 2,314 scored Georgia schools.
Among 22 similarly sized, similarly resourced-need Georgia schools statewide, it ranks #1, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (67%) and African American (26%) (diversity index 49/100).
On the academic-pipeline side it reports 20 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 349 students sharing each counselor, though short of the most stretched campuses.
Discipline events run high: 1,343 in- and out-of-school suspensions were reported for 2,790 students in the 2021-22 Civil Rights Data Collection.
Among Marietta's high schools, it stands alongside Walton High School (2,705 students): Osborne High School is larger than that campus by headcount and runs leaner classes (17:1 vs 19.7:1).
Cobb County also operates Campbell High School (3,085 students) and Walton High School (2,705 students) alongside Osborne High School.
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
How Osborne High School compares
Osborne High School on the metrics families compare, against Georgia and U.S. means.
| Metric | This school | vs Georgia | Georgia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17:1 | ▲ 18% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 63.9% | ▲ 5% | 60.7% | 51.7% |
| Enrollment | 2,790 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17:1
Leaner classes than 30% of US schools, heavier class loads than most.
2,790
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
63.9%
free-lunch eligible
- 5% above the Georgia average of 60.7%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
17:1
students per teacher
- 18% above state mean
Top 84% in Georgia - lower ratio than 16% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Funding equity
$13,203
per pupil, district-wide
- below Georgia avg of $13,863
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors8.0 FTE
Per 349 students, the combined health-and-guidance staffing load for this school.
Discipline context
981
in-school suspensions + 362 out-of-school
Suspension rate: 35.2 per 100 students. Combined in-school and out-of-school rate: 48.1 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
Hispanic or Latino 66.5%
African American 25.7%
White 4.2%
Two or More 2.1%
Asian 1.3%
American Indian / Alaska Native 0.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: Hispanic or Latino at 66.5% of enrollment.
Student-body diversity index 48.9/100
Simpson diversity index - at 48.9, Osborne High School is about as mixed as the Georgia school average of 50.0.
Programs
AP courses offered 20
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Cobb County, which includes Osborne High School.
$13,203
Per student
-5%
vs Georgia
Avg $13,863
-20%
vs U.S.
Avg $16,593
Revenue mix
Local 52.6%
State 35.4%
Federal 11.9%
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.
How Osborne High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Campbell High School | Similar size | Lower economic need | Higher S:T ratio |
| Walton High School | Similar size | Lower economic need | Higher S:T ratio |
| Pebblebrook High School | Similar size | Similar economic need | Similar S:T ratio |
| North Cobb High School | Similar size | Lower economic need | Similar S:T ratio |
| Wheeler High School | Similar size | Lower economic need | Similar S:T ratio |
Comparisons are relative to Osborne High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,085
- Students per teacher
- 18.8:1
- Resource Index
- 37/100
- 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
- Enrollment
- 2,401
- Students per teacher
- 17.5:1
- Resource Index
- 43/100
Similar high schools in Marietta
6 comparable high schools (grades 9-12) serving the same city.
Walton High School
Standard public school
2,705 students 19.7:1 students per teacher
Marietta High School
Standard public school
2,526 students 14.8:1 students per teacher
Wheeler High School
Standard public school
2,401 students 17.5:1 students per teacher
Lassiter High School
Standard public school
2,005 students 18.7:1 students per teacher
Pope High School
Standard public school
1,793 students 17.9:1 students per teacher
Sprayberry High School
Standard public school
1,769 students 16.7:1 students per teacher
Similar high schools statewide
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.
Similar enrollment (~2,790 students)
Similar student-teacher ratio (~17:1)
Next steps
Verify locally before acting on Osborne High School's federal record.
- Compare Osborne High School against another school. Compare schools
- Cobb County's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Osborne High School
How many students attend Osborne High School?
Osborne High School has 2,790 students enrolled. It is a high school in Marietta, GA.
What is the student-teacher ratio at Osborne High School?
The student-teacher ratio at Osborne High School is 17:1, which is 18% higher than the Georgia average of 14.4:1 and 8% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Osborne High School?
63.9% of students at Osborne High School are eligible for free lunch, compared to the Georgia average of 60.7%.
What is the racial and ethnic makeup of Osborne High School?
The largest demographic group at Osborne High School is Hispanic or Latino at 66.5% of enrollment, in Marietta, GA.
What is the Resource Investment Index for Osborne High School?
Osborne High School has a Resource Investment Index of 58/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Osborne High School rank among high schools in Marietta?
By Resource Investment Index, Osborne High School ranks #2 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.
Is Osborne High School a good school?
Osborne High School earns 58/100 on the Resource Investment Index, with class sizes larger than 84% of Georgia schools. It is also one of the largest 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.
What other schools are in Cobb County?
Besides Osborne High School, Cobb County also operates Campbell High School (3,085 students), Walton High School (2,705 students), and Pebblebrook High School (2,574 students). See the Cobb County district page for the complete list.
Related tools
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.