Enrollment
1,225
Georgia · 2024-25 NCES data
Middle school (grades 6-8) · Marietta, GA
Federal NCES profile for Dickerson Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
The verdict
Dickerson Middle School earns 47/100 on the Resource Investment Index, with class sizes larger than 88% of Georgia schools.
Dickerson Middle School has class sizes larger than 88% of Georgia schools. Computed live against every Georgia school reporting to NCES.
By Resource Investment Index, Dickerson Middle School ranks #5 of 12 middle schools in Marietta, GA.
Enrollment
1,225
Georgia · 2024-25 NCES data
Teachers (FTE)
70.0
Federal CCD staff survey
Students per teacher
17.5:1
vs 14.4:1 Georgia avg
+22% vs state
Free-lunch eligible
3.4%
vs 60.7% Georgia avg
-94% vs state
How Dickerson Middle School compares with Georgia and U.S. medians
Larger classes than state median
17.5:1 - 3.1 above the Georgia state median of 14.4:1, indicating larger average class loads than typical schools in the state.
Dickerson Middle School is a lower-poverty, large middle school in Marietta, Georgia, enrolling 1,225 students.
Class loads run heavy: 17.5:1 is larger than about 88% of Georgia schools and 22% above the 14.4:1 state mean, so each teacher carries more students than is typical.
Comparatively few students face economic hardship here, 3.4% free-meal eligibility runs 94% below the Georgia average.
Enrollment of 1,225 puts it in the larger third of Georgia schools by headcount.
Its Resource Investment Index lands in the upper third of 2,314 scored Georgia schools.
Against 115 statewide peers matched on enrollment and economic need, it ranks mid-pack at #48.
Its student body is led by White (60%) and Asian (24%) (diversity index 58/100).
Counselor access is stretched at roughly 408 students per counselor, well above the ASCA-recommended 250:1 ceiling.
12.6% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Marietta's middle schools, it stands alongside East Cobb Middle School (1,352 students): Dickerson Middle School is smaller than that campus by headcount and runs heavier classes (17.5:1 vs 16.9:1).
Cobb County also operates Campbell High School (3,085 students) and Osborne High School (2,790 students) alongside Dickerson Middle 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
Dickerson Middle 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 | 17.5:1 | ▲ 22% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 3.4% | ▼ 94% | 60.7% | 51.7% |
| Enrollment | 1,225 | top 12% | - | - |
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: White at 59.6% of enrollment.
Simpson diversity index - at 57.8, Dickerson Middle School is more mixed than the Georgia school average of 50.0.
District-wide per-pupil expenditure for Cobb County, which includes Dickerson Middle 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 | Higher economic need | Similar S:T ratio |
| Osborne High School | Larger | Higher economic need | Similar S:T ratio |
| Walton High School | Larger | Similar economic need | Higher S:T ratio |
| Pebblebrook High School | Larger | Higher economic need | Similar S:T ratio |
| North Cobb High School | Larger | Higher economic need | Similar S:T ratio |
Comparisons are relative to Dickerson Middle School'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 Dickerson Middle 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.
Dickerson Middle School has 1,225 students enrolled. It is a middle school in Marietta, GA.
The student-teacher ratio at Dickerson Middle School is 17.5:1, which is 22% higher than the Georgia average of 14.4:1 and 11% higher than the national average of 15.7:1.
3.4% of students at Dickerson Middle School are eligible for free lunch, compared to the Georgia average of 60.7%.
The largest demographic group at Dickerson Middle School is White at 59.6% of enrollment, in Marietta, GA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 57.8/100.
Dickerson Middle School has a Resource Investment Index of 47/100 (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, Dickerson Middle School ranks #5 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.
Dickerson Middle School earns 47/100 on the Resource Investment Index, with class sizes larger than 88% 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 Dickerson Middle 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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Dickerson Middle 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/dickerson-middle-school-ga
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.