- Enrollment
- 2,588
- Students per teacher
- 17:1
- Resource Index
- 39/100
High school (grades 9-12) · Johns Island, SC
St. Johns High
Federal NCES profile for St. Johns High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 450144000264
👥 S:T ratio 50
🌟 Gifted program 30
📋 Attendance 41
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
St. Johns High earns 40/100 on the Resource Investment Index, with class sizes smaller than 71% of South Carolina schools.
- #4 of 4
- public schools in Johns Island · Resource Index
- 40
- Resource Index · Typical
- 12.6:1
- small classes for South Carolina
- 100.0%
- free-lunch eligible
St. Johns High has class sizes smaller than 71% of South Carolina schools. Computed live against every South Carolina school reporting to NCES.
By Resource Investment Index, St. Johns High ranks #4 of 4 public schools in Johns Island, SC.
School address
District: Charleston 01 · South Carolina
NCES ID 450144000264 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+36 students YoY
St. Johns High grew from 387 students in 2022-23 to 423 in 2023-24 (+9.3%).
Teacher FTE lost 31.0 → 30.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+36 students YoY 450144000264 · Johns Island, SC High · SMALL · TRAD
390 enr · 12.6:1 · 100.0% lunch · RII 40
Nearest enrollment peer: Wando High (2,588 students)
St. Johns High grew from 387 students in 2022-23 to 423 in 2023-24 (+9.3%). Teacher FTE lost 31.0 → 30.0 across the same CCD years. Read with this school → · District book → · South Carolina schools → · Find another →
St. Johns High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Wando High
Wando High
2,588 students
- Rb Stall High
Rb Stall High
2,135 students
- West Ashley Hi
West Ashley High
2,069 students
- Lucy Garrett B
Lucy Garrett Beckham High
1,757 students
- James Island C
James Island Charter High
1,612 students
- This school 390
St. Johns High
390 students
What this shows St. Johns High reports 390 students on the CCD universe file.
How St. Johns High compares
St. Johns High is a growing campus on CCD: ratios and free-lunch share vs South Carolina and U.S. means.
| Metric | This school | vs South Carolina | South Carolina avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.6:1 | ▼ 12% | 14.3:1 | 15.7:1 |
| Free-lunch eligible | 100.0% | ▲ 35% | 74.0% | 51.7% |
| Enrollment | 390 | top 72% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.6:1
Leaner classes than 70% of US schools, among the more generously staffed nationally.
390
Bigger than 46% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
100.0%
free-lunch eligible
- 35% above the South Carolina average of 74.0%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
12.6:1
students per teacher
- 12% below state mean
Top 29% in South Carolina - lower ratio than 71% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
23.8%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,635
per pupil, district-wide
- above South Carolina avg of $15,911
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
58
in-school suspensions + 51 out-of-school
Suspension rate: 14.9 per 100 students. Combined in-school and out-of-school rate: 27.9 per 100 students. Reported via the Civil Rights Data Collection. Includes 3 expulsions.
Student demographics
Hispanic or Latino 40.8%
African American 37.4%
White 19.7%
Two or More 1.5%
Asian 0.5%
Largest group: Hispanic or Latino at 40.8% of enrollment.
Student-body diversity index 65.5/100
Simpson diversity index - at 65.5, St. Johns High is more mixed than the South Carolina school average of 52.7.
Programs
AP courses offered 3
District finance for Charleston 01 reports $16,635 per pupil (NCES F-33) - open the district page for the full revenue mix.
How St. Johns High Compares to District-Mates
| 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 | Higher S:T ratio |
Comparisons are relative to St. Johns High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,135
- Students per teacher
- 17.4:1
- Resource Index
- 43/100
- Enrollment
- 2,069
- Students per teacher
- 18.6:1
- Resource Index
- 41/100
- Enrollment
- 1,757
- Students per teacher
- 18.9:1
- Resource Index
- 40/100
- Enrollment
- 1,612
- Students per teacher
- 15.2:1
- Resource Index
- 55/100
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~390 students)
Frequently asked questions about St. Johns High
How many students attend St. Johns High?
St. Johns High has 390 students enrolled. It is a high school in Johns Island, SC. CCD year-over-year: 387 (2022-23) → 423 (2023-24), up 36.
What is the student-teacher ratio at St. Johns High?
The student-teacher ratio at St. Johns High is 12.6:1, which is 12% lower than the South Carolina average of 14.3:1 and 20% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at St. Johns High?
100.0% of students at St. Johns High are eligible for free lunch, compared to the South Carolina average of 74.0%.
What is the racial and ethnic makeup of St. Johns High?
The largest demographic group at St. Johns High is Hispanic or Latino at 40.8% of enrollment, in Johns Island, SC. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.5/100.
What is the Resource Investment Index for St. Johns High?
St. Johns High has a Resource Investment Index of 40/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does St. Johns High rank among public schools in Johns Island?
By Resource Investment Index, St. Johns High ranks #4 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.
What other schools are in Charleston 01?
Besides St. Johns High, 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.