Enrollment
295
South Carolina · 2024-25 NCES data
Other / mixed grade configuration · Johns Island, SC
Federal NCES profile for Mt. Zion Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 54/100.
The verdict
Mt. Zion Elementary earns 54/100 on the Resource Investment Index, with class sizes near the South Carolina median.
Mt. Zion Elementary has class sizes near the South Carolina median. Computed live against every South Carolina school reporting to NCES.
By Resource Investment Index, Mt. Zion Elementary ranks #2 of 4 public schools in Johns Island, SC.
NCES ID 450144001404 Verify on NCES CCD record →
Enrollment
295
South Carolina · 2024-25 NCES data
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
14.8:1
vs 14.3:1 South Carolina avg
+3% vs state
Free-lunch eligible
100.0%
vs 74.0% South Carolina avg
+35% vs state
How Mt. Zion Elementary compares with South Carolina and U.S. medians
Slightly above state median
14.8:1 - 0.5 above the South Carolina state median of 14.3:1, indicating larger average class loads than typical schools in the state.
Mt. Zion Elementary is a high-poverty, mid-sized combined-grade school in Johns Island, South Carolina, enrolling 295 students.
Class loads run somewhat heavier than typical: 14.8:1 puts it in the larger third of South Carolina schools by student-teacher ratio.
Its free-meal eligibility rate of 100.0% lands close to the South Carolina typical range, neither a high- nor low-need campus by this measure.
Enrollment of 295 puts it in the smaller third of South Carolina schools by headcount.
Its Resource Investment Index lands in the upper third of 1,214 scored South Carolina schools.
Against 224 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #37.
Its student body is led by Hispanic or Latino (39%) and White (34%) (diversity index 68/100).
Counselor coverage runs a bit thin, about 295 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
14.9% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Johns Island's public schools, it stands alongside Angel Oak Elementary (828 students): Mt. Zion Elementary is smaller than that campus by headcount and runs leaner classes (14.8:1 vs 16.6:1).
Charleston 01 also operates Wando High (2,588 students) and Rb Stall High (2,135 students) alongside Mt. Zion Elementary.
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
Mt. Zion Elementary 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 | 14.8:1 | ▲ 3% | 14.3:1 | 15.7:1 |
| Free-lunch eligible | 100.0% | ▲ 35% | 74.0% | 51.7% |
| Enrollment | 295 | top 84% | - | - |
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 38.6% of enrollment.
Simpson diversity index - at 68.2, Mt. Zion Elementary is more mixed than the South Carolina school average of 52.7.
District-wide per-pupil expenditure for Charleston 01, which includes Mt. Zion Elementary.
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 |
|---|---|---|---|
| Wando High | Larger | Lower economic need | Higher S:T ratio |
| Rb Stall High | Larger | Similar economic need | Higher S:T ratio |
| West Ashley High | Larger | Similar economic need | Higher S:T ratio |
| Lucy Garrett Beckham High | Larger | Lower economic need | Higher S:T ratio |
| James Island Charter High | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to Mt. Zion Elementary's own figures; each column derives from NCES Common Core of Data.
1 comparable other schools (grades Mixed) serving the same city.
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 Mt. Zion Elementary'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.
Mt. Zion Elementary has 295 students enrolled. It is a public school in Johns Island, SC.
The student-teacher ratio at Mt. Zion Elementary is 14.8:1, which is 3% higher than the South Carolina average of 14.3:1 and 6% lower than the national average of 15.7:1.
100.0% of students at Mt. Zion Elementary are eligible for free lunch, compared to the South Carolina average of 74.0%.
The largest demographic group at Mt. Zion Elementary is Hispanic or Latino at 38.6% of enrollment, in Johns Island, SC. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 68.2/100.
Mt. Zion Elementary has a Resource Investment Index of 54/100 (higher 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, Mt. Zion Elementary ranks #2 of 4 public schools in Johns Island, 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 Johns Island on the city page.
Mt. Zion Elementary earns 54/100 on the Resource Investment Index, with class sizes near the South Carolina median. 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 Mt. Zion Elementary, Charleston 01 also operates Wando High (2,588 students), Rb Stall High (2,135 students), and West Ashley High (2,069 students). See the Charleston 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, “Mt. Zion Elementary, Johns Island 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/mt-zion-elementary-sc
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