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B−

Plainfield South High School

PublicHighGrades 9–12

7800 Caton Farm Rd, Plainfield, IL 60586 · (815) 439-5555 · Part of Plainfield School District 202

Na-Au-Say Township’s School Grade B+ better than 71% of Illinois school districts

Students
2,323
Students per teacher
17:1
Free or reduced lunch
34%
Setting
Suburb
Grades
9–12
The gist

What stands out about Plainfield South High School

  • Its own letter, B−: better results than 52% of Illinois’s public schools
  • Reading / language arts 6 pts below the state

On the path

Where Na-Au-Say Township kids come from and go next. The whole path →

6–8Aux Sable Middle Schin Joliet
9–12Plainfield South High SchoolYou are here

Test scores

2020–21
Math proficiency21%
State average 25.9%
Reading / language arts25%
State average 30.7%

Its own letter, B−, places these results among Illinois’s 3,406 public schools with results. Source: EDFacts via Urban Institute Education Data Portal (SY2020-21).

7800 Caton Farm Rd, Plainfield

Students

Enrollment by grade
Grade 9569
Grade 10542
Grade 11564
Grade 12648
Enrollment over time
2,421’20
2,436’21
2,411’22
2,379’23
2,323’24

Down 4% since 2020–21.

Who goes here
White 42%Hispanic 31%Black 20%Two or more races 4%Asian 3%American Indian/Alaska Native <1%

As reported to NCES, share of students with a reported race or ethnicity.

Parents talk

Questions and answers about Plainfield South High School from Na-Au-Say Township families.

Other schools in Plainfield School District 202

The district →

School facts: U.S. Department of Education (NCES), 2024–2025 school year. Test scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). A school’s letter is our own summary of its reading and math results against Illinois’s other public schools; Na-Au-Say Township’s School Grade is built from its districts’ results. Map: © OpenStreetMap contributors.