Serving 1,284 students in grades 9-12, Lemont Twp High School ranks in the top 20% of all schools in Illinois for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 47% (which is higher than the Illinois state average of 27%). The percentage of students achieving proficiency in reading/language arts is 47% (which is higher than the Illinois state average of 30%).
The student-teacher ratio of 15:1 is higher than the Illinois state level of 13:1.
Minority enrollment is 20% of the student body (majority Hispanic), which is lower than the Illinois state average of 55% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,284 students
- Student-Teacher Ratio: 15:1
- Minority Enrollment: 20%
- Graduation Rate: 96% (Top 5% in IL)
- Overall Testing Rank: Top 20%
- Math Proficiency: 47% (Top 20%)
- Reading Proficiency: 47% (Top 20%)
- Science Proficiency: 74% (Top 20%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Lemont Twp High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Overall Rank
Most improved public schools
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
School Overview
Lemont Twp High School's student population of 1,284 students has declined by 8% over five school years.
The teacher population of 85 teachers has declined by 10% over five school years.
Grades Offered
Grades 9-12
Total Students
1,284 students
Total Classroom Teachers
85 teachers
School Rankings
Lemont Twp High School ranks within the top 20% of all 3,542 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Lemont Twp High School is 0.35, which is less than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#481 out of 3542 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
47%
27%
Reading/Language Arts Test Scores (% Proficient)
47%
30%
Science Test Scores (% Proficient)
74%
50%
Student-Teacher Ratio
15:1
13:1
Asian
4%
6%
Hispanic
12%
29%
Black
1%
16%
White
80%
45%
Two or more races
3%
4%
All Ethnic Groups
Graduation Rate
96%
87%
Eligible for Free Lunch
11%
43%
Eligible for Reduced Lunch
2%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
Frequently Asked Questions
What is Lemont Twp High School's ranking?
Lemont Twp High School is ranked #481 out of 3,542 schools, which ranks it among the top 20% of public schools in Illinois.
What percent of students have achieved state testing proficiency in math and reading?
47% of students have achieved math proficiency (compared to the 27% IL state average), while 47% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Lemont Twp High School?
The graduation rate of Lemont Twp High School is 96%, which is higher than the Illinois state average of 87%.
How many students attend Lemont Twp High School?
1,284 students attend Lemont Twp High School.
What is the racial composition of the student body?
80% of Lemont Twp High School students are White, 12% of students are Hispanic, 4% of students are Asian, 3% of students are Two or more races, and 1% of students are Black.
What is the student-teacher ratio of Lemont Twp High School?
Lemont Twp High School has a student ration of 15:1, which is higher than the Illinois state average of 13:1.
What grades does Lemont Twp High School offer ?
Lemont Twp High School offers enrollment in grades 9-12
What school district is Lemont Twp High School part of?
Lemont Twp High School is part of Lemont TWP HSD 210 School District.
School Reviews
Review Lemont Twp 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
When “Free Public School” Still Isn’t Free
Discover the hidden costs of public school in 2026, from supplies and fees to transportation, technology, and extracurricular expenses.
What a District Budget Cut Means for Your Child's School Experience
Learn how district budget cuts can affect class sizes, programs, staffing, transportation, and your child's daily school experience in 2026.
School Closure Risk: What Parents Should Check Before Moving
Learn how parents can assess school closure risk before buying or renting in a district, using enrollment, funding, and boundary data.
