Enrollment
2,574
Georgia · 2024-25 NCES data
High school (grades 9-12) · Mableton, GA
Federal NCES profile for Pebblebrook High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 53/100.
The verdict
Pebblebrook High School earns 53/100 on the Resource Investment Index, with class sizes larger than 90% of Georgia schools. It is also one of the largest schools in Georgia.
Pebblebrook High School has class sizes larger than 90% of Georgia schools. Computed live against every Georgia school reporting to NCES.
By Resource Investment Index, Pebblebrook High School ranks #7 of 10 public schools in Mableton, GA.
Enrollment
2,574
Georgia · 2024-25 NCES data
Teachers (FTE)
145.0
Federal CCD staff survey
Students per teacher
17.8:1
vs 14.4:1 Georgia avg
+24% vs state
Free-lunch eligible
61.0%
vs 60.7% Georgia avg
+0% vs state
How Pebblebrook High School compares with Georgia and U.S. medians
Larger classes than state median
17.8:1 - 3.4 above the Georgia state median of 14.4:1, indicating larger average class loads than typical schools in the state.
Pebblebrook High School is a higher-need, large high school in Mableton, Georgia, enrolling 2,574 students.
Class loads run heavy: 17.8:1 is larger than about 90% of Georgia schools and 24% above the 14.4:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 61.0% 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 2,574 students.
Its Resource Investment Index lands in the lower third of 2,314 scored Georgia schools.
Against 30 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #13.
Its student body is led by African American (48%) and Hispanic or Latino (45%) (diversity index 57/100).
On the academic-pipeline side it reports 20 Advanced Placement courses.
Counselor access is stretched at roughly 429 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Discipline events run high: 581 in- and out-of-school suspensions were reported for 2,574 students in the 2021-22 Civil Rights Data Collection.
Cobb County also operates Campbell High School (3,085 students) and Osborne High School (2,790 students) alongside Pebblebrook 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
Pebblebrook 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 | 17.8:1 | ▲ 24% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 61.0% | ▲ 0% | 60.7% | 51.7% |
| Enrollment | 2,574 | top 1% | - | - |
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: African American at 47.7% of enrollment.
Simpson diversity index - at 56.5, Pebblebrook High School is more mixed than the Georgia school average of 50.0.
District-wide per-pupil expenditure for Cobb County, which includes Pebblebrook High School.
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 |
|---|---|---|---|
| Campbell High School | Similar size | Lower economic need | Similar S:T ratio |
| Osborne High School | Similar size | Similar economic need | Similar S:T ratio |
| Walton High School | Similar size | Lower economic need | Higher 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 Pebblebrook High School's own figures; each column derives from NCES Common Core of Data.
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 Pebblebrook High School'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.
Pebblebrook High School has 2,574 students enrolled. It is a high school in Mableton, GA.
The student-teacher ratio at Pebblebrook High School is 17.8:1, which is 24% higher than the Georgia average of 14.4:1 and 13% higher than the national average of 15.7:1.
61.0% of students at Pebblebrook High School are eligible for free lunch, compared to the Georgia average of 60.7%.
The largest demographic group at Pebblebrook High School is African American at 47.7% of enrollment, in Mableton, GA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 56.5/100.
Pebblebrook High School has a Resource Investment Index of 53/100 (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).
By Resource Investment Index, Pebblebrook High School ranks #7 of 10 public schools in Mableton, GA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Mableton on the city page.
Pebblebrook High School earns 53/100 on the Resource Investment Index, with class sizes larger than 90% 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.
Besides Pebblebrook High 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.
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, “Pebblebrook High School, Mableton 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/pebblebrook-high-school-ga
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