Warren Township High School, or Warren, is a public four-year high school located in Gurnee, a northern suburb of Chicago, in Lake County, in Illinois.
Serving 3,537 students in grades 9-12, Warren Township High School ranks in the top 50% of all schools in Illinois for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 28% (which is higher than the Illinois state average of 27%). The percentage of students achieving proficiency in reading/language arts is 32% (which is higher than the Illinois state average of 30%).
The student-teacher ratio of 16:1 is higher than the Illinois state level of 13:1.
Minority enrollment is 68% of the student body (majority Hispanic), which is higher than the Illinois state average of 55% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 3,537 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 68%
- Graduation Rate: 95% (Top 20% in IL)
- Overall Testing Rank: Top 50%
- Math Proficiency: 28% (Top 50%)
- Reading Proficiency: 32% (Top 50%)
- Science Proficiency: 58% (Top 50%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Warren Township High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Most improved public schools
Graduation Rate
Diversity
School Overview
Warren Township High School's student population of 3,537 students has declined by 9% over five school years.
The teacher population of 226 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
3,537 students
Total Classroom Teachers
226 teachers
Year Founded
1917
Colors
Warren Blue and Gold
Campus Size
50 acres
School Motto
In Pursuit of Academic Excellence
School Rankings
Warren Township High School ranks within the top 50% of all 3,542 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Warren Township High School is 0.71, which is more 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
#1243 out of 3542 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
28%
27%
Reading/Language Arts Test Scores (% Proficient)
32%
30%
Science Test Scores (% Proficient)
58%
50%
Student-Teacher Ratio
16:1
13:1
Asian
9%
6%
Hispanic
40%
29%
Black
15%
16%
White
32%
45%
Hawaiian
1%
n/a
Two or more races
3%
4%
All Ethnic Groups
Graduation Rate
95%
87%
Eligible for Free Lunch
18%
43%
Eligible for Reduced Lunch (11-12)
9%
27%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
School Notes
- School Mascot: Devils
Frequently Asked Questions
What is Warren Township High School's ranking?
Warren Township High School is ranked #1243 out of 3,542 schools, which ranks it among the top 50% of public schools in Illinois.
What percent of students have achieved state testing proficiency in math and reading?
28% of students have achieved math proficiency (compared to the 27% IL state average), while 32% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Warren Township High School?
The graduation rate of Warren Township High School is 95%, which is higher than the Illinois state average of 87%.
How many students attend Warren Township High School?
3,537 students attend Warren Township High School.
What is the racial composition of the student body?
40% of Warren Township High School students are Hispanic, 32% of students are White, 15% of students are Black, 9% of students are Asian, 3% of students are Two or more races, and 1% of students are Hawaiian.
What is the student-teacher ratio of Warren Township High School?
Warren Township High School has a student ration of 16:1, which is higher than the Illinois state average of 13:1.
What grades does Warren Township High School offer ?
Warren Township High School offers enrollment in grades 9-12
What school district is Warren Township High School part of?
Warren Township High School is part of Warren TWP HSD 121 School District.
School Reviews
Review Warren Township 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.
