Plainfield South High School
2,411
Students
17.5:1
S:T Ratio
School Snapshot
Key metrics at a glance1,150
B+
25
A-
23
A+
24%
C
18:1
B
90%
A+
30%
C+
26%
C
This Week at Plainfield South – June 3, 2026
317 students practicing on Varsity Tutors
Academic Resources
Typical courses and practice resources for students at Plainfield South High School
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Plainfield South High School.
National Tests
June 5, 2026
ACT
June 6, 2026
SAT — National
June 8, 2026
ACT Photo Upload/Standby Deadline
June 13, 2026
ACT — National
June 20, 2026 – July 4, 2026
SAT Score Release Date
June 23, 2026
ACT
School Milestones
May 23, 2026 – June 4, 2026
Graduation
June 4, 2026
School End/Summer Start
After Plainfield South High
Where graduates go and what they studyIllinois State University
University of Illinois Urbana-Champaign
Northern Illinois University
University of Illinois Chicago
Joliet Junior College
Loyola University Chicago
Michigan State University
University of Iowa
Psychology
Nursing
Business
Biology
Pre-Medicine Studies
Computer Science
Marketing
Engineering
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7800 Caton Farm Rd, Plainfield, IL 60586
(815)439-5555
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Plainfield SD 202