Thornwood High School is a public high school located in South Holland, Illinois, United States. It was built as part of Thornton Township High School District 205. It opened in 1971 to accommodate overcrowding at other District 205 schools, Thornridge High and Thornton Township High School.
Serving 1,868 students in grades 9-12, Thornwood High School ranks in the bottom 50% of all schools in Illinois for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 8% (which is lower than the Illinois state average of 28%). The percentage of students achieving proficiency in reading/language arts is 8% (which is lower than the Illinois state average of 30%).
The student:teacher ratio of 13:1 is equal to the Illinois state level of 13:1.
Minority enrollment is 98% of the student body (majority Black), which is higher than the Illinois state average of 55% (majority Hispanic and Black).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 1,868 students
- Student:Teacher Ratio: 13:1
- Minority Enrollment: 98%
- Graduation Rate: 81% (Btm 50% in IL)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 8% (Btm 50%)
- Reading Proficiency: 8% (Btm 50%)
- Science Proficiency: 10% (Btm 50%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
School Overview
Thornwood High School's student population of 1,868 students has stayed relatively flat over five school years.
The teacher population of 141 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
1,868 students
Gender %
Total Classroom Teachers
141 teachers
Year Founded
1972
Colors
Navy Blue, Gold
School Rankings
Thornwood 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 Thornwood High School is 0.31, 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
#2991 out of 3426 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
(20-21)8%
28%
Reading/Language Arts Test Scores (% Proficient)
8%
30%
Science Test Scores (% Proficient)
10%
50%
Student : Teacher Ratio
13:1
13:1
American Indian
n/a
1%
Asian
n/a
6%
Hispanic
14%
28%
Black
82%
16%
White
2%
45%
Hawaiian
n/a
n/a
Two or more races
2%
4%
All Ethnic Groups
Graduation Rate
81%
87%
Eligible for Free Lunch
8%
43%
Eligible for Reduced Lunch (19-20)
19%
2%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Thornwood High School's ranking?
Thornwood High School is ranked #2991 out of 3,426 schools, which ranks it among the bottom 50% of public schools in Illinois.
What schools are Thornwood High School often compared to?
Thornwood High Schoolis often viewed alongside schools like Thornton Fractnl So High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
8% of students have achieved math proficiency (compared to the 28% IL state average), while 8% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Thornwood High School?
The graduation rate of Thornwood High School is 81%, which is lower than the Illinois state average of 87%.
How many students attend Thornwood High School?
1,868 students attend Thornwood High School.
What is the racial composition of the student body?
82% of Thornwood High School students are Black, 14% of students are Hispanic, 2% of students are White, and 2% of students are Two or more races.
What is the student:teacher ratio of Thornwood High School?
Thornwood High School has a student ration of 13:1, which is equal to the Illinois state average of 13:1.
What grades does Thornwood High School offer ?
Thornwood High School offers enrollment in grades 9-12
What school district is Thornwood High School part of?
Thornwood High School is part of Thornton TWP HSD 205 School District.
School Reviews
1 4/7/2017
Thornwood was one of the BEST high schools in the country when I went there...... what happened?
Review Thornwood High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
Texas Schools: The Voucher/School Choice Debate
The issue of school choice and a voucher system is currently being revisited in Houston and across the state of Texas, with strong opinions on both sides of the debate.
Fuel Up to Play 60 Focuses on Integrating Fitness and Wellness into the School Day
What if NFL players came to your school? With the Fuel Up to Play 60 program, sponsored by the National Dairy Council and the NFL, nutrition and exercise are promoted during the school day. NFL players participate in the program by coming to schools and talking to students about fitness. Learn more about the program and some of the schools that are implementing it.
What Parents Need to Know About Lunch Shaming
Students all over the nation go hungry every day not because their schools don’t offer lunch, but because they refuse them to children with outstanding debts. Read on to learn about the horror that is lunch shaming and what can be done about it.
