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Illinois
Johnston City CUSD 1
Johnston City High School

Johnston City CUSD 1

Johnston City High School

Johnston City, Illinois

337 students

High School, Grades 9–12

(618)983-4700School Website

337

Students

12.8:1

S:T Ratio

School Snapshot
Key metrics at a glance
Avg SAT Score

1,050

B

out of 1600
Average
Avg ACT Score

23

B+

out of 36
Good
Student-Teacher Ratio

13:1

A-

students per teacher
Good
This Week at Johnston City – July 27, 2026

37 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

Start practicing →
Explore practice resources for Johnston City 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 Johnston City High School

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

Standardized Test Dates

Upcoming national, state, and school calendar dates that affect students at Johnston City High School.

National Tests

August 7, 2026

SAT — National

Registration deadline

August 11, 2026

SAT — National

Late registration deadline

August 14, 2026

ACT — National

Registration deadline

August 22, 2026

SAT — National

Test date

August 28, 2026

SAT — National

Registration deadline

September 1, 2026

ACT — National

Late registration deadline
+63 more national tests this school year
See the full national test & school calendar
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School Details
Address

1500 Jefferson Ave, Johnston City, IL 62951

Phone

(618)983-4700

Website

Visit Website

District

Johnston City CUSD 1

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Other Schools in District
Jefferson Elementary School
Lincoln Elementary School
Washington Middle School
Johnston City High School