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Thornton Fractnl So High School

18500 Burnham Ave, Lansing, IL 60438

CSchola Grade
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Grades
9–12
High
Students
1,803
Enrolled 2024–25
Students per teacher
16.9 : 1
Full-time teachers
District
Thornton Fractional Twp HSD 215
Cook County

Schola Grade C · Average

Letter grade (A–F) · compared with 684 Illinois high schools · How we grade
Test scores13% proficient in math & reading
30thpercentile
Equity9% of low-income students proficient
28thpercentile
Attendance22% chronically absent
77thpercentile
Graduation rate92% graduate in 4 years
67thpercentile
College readinessAt least 17% take AP, IB or dual-enrollment courses
43rdpercentile
Class size16.9 students per teacher
12thpercentile

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 Thornton Fractnl So High School

Thornton Fractnl So High School is a public high school in Lansing, Illinois, serving grades 9–12. It is part of Thornton Fractional Twp HSD 215. The school is located in a large suburb in Cook County.

In the 2024–25 school year, 1,803 students were enrolled, with about 16.9 students for every full-time teacher. That ratio is larger than the typical Illinois high school (13.3 students per teacher). Its Schola Grade is C (average), compared with 684 Illinois high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

18500 Burnham Ave
Lansing, IL 60438
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
1,803 students
Students per teacher
16.9 to 1
AP courses offered
11
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
Thornton Fractional Twp HSD 215
County
Cook County
NCES school ID
173894003953

Schools near Thornton Fractnl So High School

All 10 schools in Lansing →

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.