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South Carolina
Charleston 01
St. Johns High

School District of Charleston 01

St. Johns High

Johns Island, South Carolina

387 students

High School, Grades 9–12

(843)559-6200School Website

#43

Best Student:Teacher Ratio in South Carolina

387

Students

12.5:1

S:T Ratio

School Snapshot
Key metrics at a glance
Avg ACT Score

15

C

out of 36
Below Avg
AP Courses

3

B-

courses offered
Average
AP Enrollment

9%

C

of students
Below Avg
Student-Teacher Ratio

13:1

A-

students per teacher
Good
This Week at St. Johns High – March 21, 2026

53 students practicing on Varsity Tutors

SAT Prep

1

A

B

C

D

2

A

B

C

D

3

A

B

C

D

4

A

B

C

D

5

A

B

C

D

1520

0

students

Start practicing →
ACT Prep

36

ENG

MATH

READ

SCI

0

students

Start practicing →
Math

0

students

Start practicing →
English

0

students

Start practicing →
Science

0

students

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Explore practice resources for St. Johns High students
Academic Grades

Select a grade level to explore courses and resources

9
Grade
10
Grade
11
Grade
12
Grade
Academic Resources

Typical courses and practice resources for students at St. Johns High

Biology
9

Cell biology, genetics, evolution, and ecology

AP Biology
AP

College-level biology with lab component

Chemistry
9

Atomic structure, reactions, and stoichiometry

AP Chemistry
AP

College-level chemistry with lab component

Physics
9

Mechanics, waves, electricity, and magnetism

AP Physics 1
AP

Algebra-based mechanics and waves

Environmental Science
9

Ecosystems, human impact, and sustainability

AP Environmental Science
AP

College-level environmental science

World History
9

Global civilizations from ancient to modern times

AP World History
AP

College-level world history analysis

U.S. History
9

American history from colonization to present

AP U.S. History
AP

College-level American history

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1:1 Tutoring

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School Details
Address

1518 Main Road, Johns Island, SC 29455

Phone

(843)559-6200

Website

Visit Website

District

Charleston 01

Academic Calendar
2025-2026

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