Plainfield North High School

Plainfield SD 202

Plainfield, Illinois

2,377 students

High School, Grades 9–12

(815)609-8506 School Website

#62

Best ACT in Illinois High Schools

2,377

Students

17.8:1

S:T Ratio

School Snapshot

Key metrics at a glance

Avg SAT Score

1,230

A-

out of 1600

Good

Avg ACT Score

out of 36

Excellent

AP Courses

A+

courses offered

Excellent

AP Enrollment

29%

of students

Good

Student-Teacher Ratio

18:1

students per teacher

Average

This Week at Plainfield North – August 17, 2026

309 students practicing on Varsity Tutors

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MATH

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Academic Grades

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Academic Resources

Typical courses and practice resources for students at Plainfield North High School

Biology

Cell biology, genetics, evolution, and ecology

AP Biology

College-level biology with lab component

Chemistry

Atomic structure, reactions, and stoichiometry

AP Chemistry

College-level chemistry with lab component

Physics

Mechanics, waves, electricity, and magnetism

AP Physics 1

Algebra-based mechanics and waves

Environmental Science

Ecosystems, human impact, and sustainability

AP Environmental Science

College-level environmental science

World History

Global civilizations from ancient to modern times

AP World History

College-level world history analysis

U.S. History

American history from colonization to present

AP U.S. History

College-level American history

Standardized Test Dates

Upcoming national, state, and school calendar dates that affect students at Plainfield North High School.

National Tests

August 1, 2026 – November 30, 2026

ISEE — Fall Testing Season

Testing window

August 3, 2026 – June 30, 2027

SSAT — Flex Testing

Testing window

August 22, 2026

SAT — National

Test date

August 28, 2026

SAT — National

Registration deadline

September 1, 2026

ACT — National

Late registration deadline

September 1, 2026

SAT — National

Late registration deadline

+76 more national tests this school year

See the full national test & school calendar

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School Details

Address

12005 S 248th Ave, Plainfield, IL 60585

Phone

(815)609-8506

Website

Visit Website

District

Plainfield SD 202

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Other Schools in District

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Wesmere Elementary School

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