Enrollment
725
Georgia · 2024-25 NCES data
Other / mixed grade configuration · Marietta, GA
Federal NCES profile for Birney Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
The verdict
Birney Elementary School earns 40/100 on the Resource Investment Index, with class sizes smaller than 87% of Georgia schools.
Birney Elementary School has class sizes smaller than 87% of Georgia schools. Computed live against every Georgia school reporting to NCES.
By Resource Investment Index, Birney Elementary School ranks #27 of 30 schools in Marietta, GA.
Enrollment
725
Georgia · 2024-25 NCES data
Teachers (FTE)
64.0
Federal CCD staff survey
Students per teacher
11.3:1
vs 14.4:1 Georgia avg
-22% vs state
Free-lunch eligible
72.4%
vs 60.7% Georgia avg
+19% vs state
How Birney Elementary School compares with Georgia and U.S. medians
Smaller classes than state median
11.3:1 - 3.1 below the Georgia state median of 14.4:1, indicating smaller average class loads than typical schools in the state.
Birney Elementary School is a higher-need, mid-sized combined-grade school in Marietta, Georgia, enrolling 725 students.
Classes run notably small here: at 11.3:1, Birney Elementary School is leaner than roughly 87% of Georgia schools and 22% under the state's 14.4:1 norm, more adult attention per pupil than most peers.
Its free-meal eligibility rate of 72.4% lands close to the Georgia typical range, neither a high- nor low-need campus by this measure.
With 725 students, its enrollment sits close to the Georgia median campus size.
Its Resource Investment Index sits near the middle of the pack among 2,314 scored Georgia schools.
Against 342 statewide peers matched on enrollment and economic need, it ranks mid-pack at #176.
Its student body is led by Hispanic or Latino (48%) and African American (41%) (diversity index 60/100).
Counselor access is stretched at roughly 483 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 27.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Marietta's public schools, it stands alongside Sope Creek Elementary School (1,104 students): Birney Elementary School is smaller than that campus by headcount and runs leaner classes (11.3:1 vs 15.3:1).
Cobb County also operates Campbell High School (3,085 students) and Osborne High School (2,790 students) alongside Birney Elementary 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
Birney Elementary 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 | 11.3:1 | ▼ 22% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 72.4% | ▲ 19% | 60.7% | 51.7% |
| Enrollment | 725 | top 39% | - | - |
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 48.4% of enrollment.
Simpson diversity index - at 59.5, Birney Elementary School is more mixed than the Georgia school average of 50.0.
District-wide per-pupil expenditure for Cobb County, which includes Birney Elementary 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 | Larger | Lower economic need | Higher S:T ratio |
| Osborne High School | Larger | Similar economic need | Higher S:T ratio |
| Walton High School | Larger | Lower economic need | Higher S:T ratio |
| Pebblebrook High School | Larger | Lower economic need | Higher S:T ratio |
| North Cobb High School | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Birney Elementary School's own figures; each column derives from NCES Common Core of Data.
6 comparable other schools (grades Mixed) 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 Birney Elementary 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.
Birney Elementary School has 725 students enrolled. It is a public school in Marietta, GA.
The student-teacher ratio at Birney Elementary School is 11.3:1, which is 22% lower than the Georgia average of 14.4:1 and 28% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
72.4% of students at Birney Elementary School are eligible for free lunch, compared to the Georgia average of 60.7%.
The largest demographic group at Birney Elementary School is Hispanic or Latino at 48.4% of enrollment, in Marietta, GA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.5/100.
Birney Elementary School has a Resource Investment Index of 40/100 (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, Birney Elementary School ranks #27 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.
Birney Elementary School earns 40/100 on the Resource Investment Index, with class sizes smaller than 87% of Georgia schools. 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 Birney 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.
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, “Birney Elementary School, 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/birney-elementary-school-ga
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