Enrollment
394
South Carolina · 2024-25 NCES data
Middle school (grades 6-8) · Johnston, SC
Federal NCES profile for Johnston-Edgefield-Trenton Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
The verdict
Johnston-Edgefield-Trenton Middle earns 45/100 on the Resource Investment Index, with class sizes smaller than 75% of South Carolina schools.
Johnston-Edgefield-Trenton Middle has class sizes smaller than 75% of South Carolina schools. Computed live against every South Carolina school reporting to NCES.
By Resource Investment Index, Johnston-Edgefield-Trenton Middle ranks #2 of 3 public schools in Johnston, SC.
NCES ID 450207000037 Verify on NCES CCD record →
Enrollment
394
South Carolina · 2024-25 NCES data
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
12.3:1
vs 14.3:1 South Carolina avg
-14% vs state
Free-lunch eligible
80.4%
vs 74.0% South Carolina avg
+9% vs state
How Johnston-Edgefield-Trenton Middle compares with South Carolina and U.S. medians
Smaller classes than state median
12.3:1 - 2.0 below the South Carolina state median of 14.3:1, indicating smaller average class loads than typical schools in the state.
Johnston-Edgefield-Trenton Middle is a high-poverty, mid-sized middle school in Johnston, South Carolina, enrolling 394 students.
Class sizes run a bit leaner than typical: 12.3:1 puts it in the smaller third of South Carolina schools by student-teacher ratio.
Its free-meal eligibility rate of 80.4% lands close to the South Carolina typical range, neither a high- nor low-need campus by this measure.
Enrollment of 394 puts it in the smaller third of South Carolina schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 1,214 scored South Carolina schools.
Against 56 statewide peers matched on enrollment and economic need, it ranks mid-pack at #28.
Its student body is led by African American (49%) and White (34%) (diversity index 63/100).
Counselor availability sits well past the ASCA benchmark, roughly 394 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 25.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 17.6% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 210 in- and out-of-school suspensions were reported for 394 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 9 expulsions at this campus for 2021-22.
Edgefield 01 also operates Merriwether Elementary (760 students) and Strom Thurmond High (720 students) alongside Johnston-Edgefield-Trenton Middle.
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
Johnston-Edgefield-Trenton Middle on the metrics families compare, against South Carolina and U.S. means.
| Metric | This school | vs South Carolina | South Carolina avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.3:1 | ▼ 14% | 14.3:1 | 15.7:1 |
| Free-lunch eligible | 80.4% | ▲ 9% | 74.0% | 51.7% |
| Enrollment | 394 | top 72% | - | - |
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 49.2% of enrollment.
Simpson diversity index - at 62.8, Johnston-Edgefield-Trenton Middle is more mixed than the South Carolina school average of 52.7.
District-wide per-pupil expenditure for Edgefield 01, which includes Johnston-Edgefield-Trenton Middle.
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 |
|---|---|---|---|
| Merriwether Elementary | Larger | Lower economic need | Higher S:T ratio |
| Strom Thurmond High | Larger | Lower economic need | Higher S:T ratio |
| Merriwether Middle | Similar size | Lower economic need | Similar S:T ratio |
| W. E. Parker Elementary | Similar size | Higher economic need | Similar S:T ratio |
| Johnston Elementary | Smaller | Higher economic need | Similar S:T ratio |
Comparisons are relative to Johnston-Edgefield-Trenton Middle's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of South Carolina, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Johnston-Edgefield-Trenton Middle'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.
Johnston-Edgefield-Trenton Middle has 394 students enrolled. It is a middle school in Johnston, SC.
The student-teacher ratio at Johnston-Edgefield-Trenton Middle is 12.3:1, which is 14% lower than the South Carolina average of 14.3:1 and 22% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
80.4% of students at Johnston-Edgefield-Trenton Middle are eligible for free lunch, compared to the South Carolina average of 74.0%.
The largest demographic group at Johnston-Edgefield-Trenton Middle is African American at 49.2% of enrollment, in Johnston, SC. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 62.8/100.
Johnston-Edgefield-Trenton Middle has a Resource Investment Index of 45/100 (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, Johnston-Edgefield-Trenton Middle ranks #2 of 3 public schools in Johnston, SC. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Johnston on the city page.
Johnston-Edgefield-Trenton Middle earns 45/100 on the Resource Investment Index, with class sizes smaller than 75% of South Carolina 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 Johnston-Edgefield-Trenton Middle, Edgefield 01 also operates Merriwether Elementary (760 students), Strom Thurmond High (720 students), and Merriwether Middle (365 students). See the Edgefield 01 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, “Johnston-Edgefield-Trenton Middle, Johnston SC.” 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/johnston-edgefield-trenton-middle-sc
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