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Lemont Twp High School

800 Porter St, Lemont, IL 60439

ASchola Grade
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Grades
9–12
High
Students
1,284
Enrolled 2024–25
Students per teacher
15 : 1
Full-time teachers
District
Lemont Twp HSD 210
Cook County

Schola Grade A · Excellent

Letter grade (A–F) · compared with 684 Illinois high schools · How we grade
Test scores47% proficient in math & reading
92ndpercentile
Equity34% of low-income students proficient
96thpercentile
Attendance23% chronically absent
74thpercentile
Graduation rate96% graduate in 4 years
91stpercentile
College readinessAt least 42% take AP, IB or dual-enrollment courses
88thpercentile
Class size15 students per teacher
34thpercentile

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 Lemont Twp High School

Lemont Twp High School is a public high school in Lemont, Illinois, serving grades 9–12. It is part of Lemont Twp HSD 210. The school is located in a large suburb in Cook County.

In the 2024–25 school year, 1,284 students were enrolled, with about 15 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 A (excellent), compared with 684 Illinois high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

800 Porter St
Lemont, IL 60439
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
1,284 students
Students per teacher
15 to 1
AP courses offered
44
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
Lemont Twp HSD 210
County
Cook County
NCES school ID
172250002508

Schools near Lemont Twp High School

All 10 schools in Lemont →

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.