Serving 2,379 students in grades 9-12, Plainfield South High School ranks in the bottom 50% of all schools in Illinois for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 21% (which is lower than the Illinois state average of 28%). The percentage of students achieving proficiency in reading/language arts is 24% (which is lower than the Illinois state average of 30%).
The student:teacher ratio of 17:1 is higher than the Illinois state level of 13:1.
Minority enrollment is 56% of the student body (majority Hispanic), which is higher than the Illinois state average of 55% (majority Hispanic).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 2,379 students
- Student:Teacher Ratio: 17:1
- Minority Enrollment: 56%
- Graduation Rate: 92% (Top 30% in IL)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 21% (Top 50%)
- Reading Proficiency: 24% (Btm 50%)
- Science Proficiency: 60% (Top 50%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Plainfield South High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Diversity
School Overview
Plainfield South High School's student population of 2,379 students has stayed relatively flat over five school years.
The teacher population of 139 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
2,379 students
Gender %
Total Classroom Teachers
139 teachers
Students by Grade
School Rankings
Plainfield South High School ranks within the bottom 50% of all 3,426 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Plainfield South High School is 0.69, which is less than the diversity score at state average of 0.70. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1764 out of 3426 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
(20-21)21%
28%
Reading/Language Arts Test Scores (% Proficient)
24%
30%
Science Test Scores (% Proficient)
60%
50%
Student : Teacher Ratio
17:1
13:1
American Indian
1%
1%
Asian
3%
6%
Hispanic
30%
28%
Black
18%
16%
White
44%
45%
Hawaiian
n/a
n/a
Two or more races
4%
4%
All Ethnic Groups
Graduation Rate
92%
87%
Eligible for Free Lunch
20%
43%
Eligible for Reduced Lunch
10%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
Frequently Asked Questions
What is Plainfield South High School's ranking?
Plainfield South High School is ranked #1764 out of 3,426 schools, which ranks it among the bottom 50% of public schools in Illinois.
What schools are Plainfield South High School often compared to?
Plainfield South High Schoolis often viewed alongside schools like Plainfield North High School, Joliet West High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
21% of students have achieved math proficiency (compared to the 28% IL state average), while 24% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Plainfield South High School?
The graduation rate of Plainfield South High School is 92%, which is higher than the Illinois state average of 87%.
How many students attend Plainfield South High School?
2,379 students attend Plainfield South High School.
What is the racial composition of the student body?
44% of Plainfield South High School students are White, 30% of students are Hispanic, 18% of students are Black, 4% of students are Two or more races, 3% of students are Asian, and 1% of students are American Indian.
What is the student:teacher ratio of Plainfield South High School?
Plainfield South High School has a student ration of 17:1, which is higher than the Illinois state average of 13:1.
What grades does Plainfield South High School offer ?
Plainfield South High School offers enrollment in grades 9-12
What school district is Plainfield South High School part of?
Plainfield South High School is part of Plainfield SD 202 School District.
School Reviews
5 4/5/2014
I think the school has shown great improvement. There is allot more contact with parents through phone and email. As long as you are an involved parent your child will thrive here at Plainfield South. Some teachers are better then others but it is like that anywhere. The principle and assistants are making a huge difference in the school. I think they are bit behind of other states but that starts in Middle school. The ap and honors classes are good and help my kids stay above the rest and they do not get bored. It all begins with the parents at home!!!
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