Very Good
#371 of 1,176 schools in SC
Top 32% in state
St. Johns High
High School · Charleston 01
1518 Main Road, Johns Island, SC 29455
Enrollment
423
Student-Teacher
14.1:1
Score
7.1
Grades
9th – 12th
Enrollment
423
Student-Teacher
14.1:1
Score
7.1
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
South Carolina schools
#371 of 1,176
In Johns Island
#1 of 4
public schools
In district
#31 of 79
Charleston 01
Academic growth
9.8 / 10
Excellent
Shortlisting around St. Johns High?
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St. Johns High
High School in Johns Island · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Angel Oak Elementary
0.3 mi away. Use as a geographic alternative in the same move search.
Montessori School of Johns Island
0.8 mi away. Use as a geographic alternative in the same move search.
About St. Johns High
St. Johns High is a public high school in Johns Island, SC, part of Charleston 01. St.
Johns High serves approximately 423 students, and covers grades 9th-12th, and has a 14.1:1 student-teacher ratio. St. Johns High has a current MySchoolScout rating of 7.1 out of 10 and ranks #371 of 1,176 schools in SC.
Structured state assessment records for St. Johns High show 50% math proficiency (multi-year average, 2009-2022) and 57% reading/ELA proficiency (multi-year average, 2009-2022).
- This school 7.1 · Very Good
- District avg 7.0
- SC avg 7.3
What Parents Should Know
48% of students at St. Johns High were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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St. Johns High — Students at St. Johns High score 70% proficient, which is above what's typical for similar communities (expected: 36%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
100%
Students qualifying for federal meal assistance
Test Scores SC EDFACTS (2021-22)
Based on 28 test records from SC state assessments. About our data
Proficiency Trend
↑ ImprovingAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 9.8/10.
How St. Johns High Compares
See how St. Johns High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
1518 Main Road, Johns Island, SC 29455
Nearby Alternatives
Families considering St. Johns High may also want to explore other high schools in the area. Ashley River Creative Arts Elementary (rated 8.4/10, 6.9 miles away, in nearby Charleston), which scores notably higher. Another option is Montessori Community School (rated 8.4/10, 8.0 miles away, in nearby Charleston), which scores notably higher. Additionally, Carolina Voyager Charter (rated 8.1/10, 6.4 miles away, in nearby Charleston), which scores slightly higher. For more schools in Johns Island, see our Johns Island schools guide .
Nearby Schools
20 within 8.0 miNeighborhood Census ACS (2019-2023)
Census data for ZIP 29455 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$117,422
Median Home Value
$499,500
Median Rent
$1,489/mo
Population
26,308
College Educated
56.8%
Homeownership
86.3%
Avg Commute
29.6 min
Poverty Rate
9.3%
Median Age
51.6
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Allendale Fairfax High Fairfax, SC | 7.1 |
| McBee High Mcbee, SC | 7.1 |
| Charleston Charter School for Math and Science Charleston, SC | 7.0 |
| Barnwell High Barnwell, SC | 7.2 |
| Great Falls High Great Falls, SC | 7.2 |
| Burke High Charleston, SC | 6.9 |
Frequently Asked Questions
Common questions about St. Johns High
What grades does St. Johns High serve?
St. Johns High serves students in grades 9th through 12th.
How many students attend St. Johns High?
St. Johns High has an enrollment of approximately 423 students.
What is the student-teacher ratio at St. Johns High?
The student-teacher ratio at St. Johns High is 14.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does St. Johns High rank in SC?
St. Johns High ranks #371 of 1,176 schools in SC.
What is St. Johns High's MySchoolScout rating?
St. Johns High has a current MySchoolScout rating of 7.1 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at St. Johns High?
Based on loaded state assessment records, St. Johns High has 50% math proficiency (multi-year average, 2009-2022) and 57% reading/ELA proficiency (multi-year average, 2009-2022).
Is St. Johns High a charter school?
No, St. Johns High is not a charter school. It is a traditional public school operated by the local school district.
Is St. Johns High a Title I school?
No, St. Johns High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for St. Johns High?
100.0% of students at St. Johns High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
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Neighborhood Context
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Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 423
- Student-Teacher Ratio
- 14.1:1
- Teachers (FTE)
- 30
- Free/Reduced Lunch
- 100.0%
- Type
- regular
- Setting
- Midsize City
- County
- Charleston County
- Chronic Absenteeism (SY 2022-23)
- 47.8%
- Phone
- (843) 559-6200
- 4-Year Graduation
- 82.0%
Resources & Links
District
Charleston 01- District Enrollment
- 50,400
- Schools in District
- 82
- Per-Pupil Spending
- $16,635
- District Rank
- #31 of 79
Other Schools in This District
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