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Thornwood High School

17101 S Park Ave, South Holland, IL 60473

DSchola Grade
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Grades
9–12
High
Students
1,843
Enrolled 2024–25
Students per teacher
12.9 : 1
Full-time teachers
District
Thornton Twp HSD 205
Cook County

Schola Grade D · Below average

Letter grade (A–F) · compared with 684 Illinois high schools · How we grade
Test scores8% proficient in math & reading
16thpercentile
Equity6% of low-income students proficient
19thpercentile
Attendance47% chronically absent
22ndpercentile
Graduation rate88% graduate in 4 years
49thpercentile
College readinessAt least 23% take AP, IB or dual-enrollment courses
56thpercentile
Class size12.9 students per teacher
59thpercentile

Percentiles compare this school with other Illinois high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Thornwood High School

Thornwood High School is a public high school in South Holland, Illinois, serving grades 9–12. It is part of Thornton Twp HSD 205. The school is located in a large suburb in Cook County.

In the 2024–25 school year, 1,843 students were enrolled, with about 12.9 students for every full-time teacher. That ratio is close to the typical Illinois high school (13.3 students per teacher). Its Schola Grade is D (below average), compared with 684 Illinois high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

17101 S Park Ave
South Holland, IL 60473
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
1,843 students
Students per teacher
12.9 to 1
AP courses offered
10
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
Thornton Twp HSD 205
County
Cook County
NCES school ID
173897003956

Schools near Thornwood High School

All 20 schools in South Holland →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.