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 3,687 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 17:1 is higher than the Illinois state level of 13:1.
Minority enrollment is 66% of the student body (majority Hispanic), which is higher than the Illinois state average of 55% (majority Hispanic).
Quick Facts (2025-26)
- Grades: 9-12
- Enrollment: 3,687 students
- Student-Teacher Ratio: 17:1
- Minority Enrollment: 66%
- 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 3,687 students has declined by 5% over five school years.
The teacher population of 223 teachers has declined by 5% over five school years.
Grades Offered
Grades 9-12
Total Students
3,687 students
Gender %
Total Classroom Teachers
223 teachers
Year Founded
1917
Colors
Royal blue, Gold, Old gold
Last Day of School
Mon. May 25, 2026
Campus Size
50 acres
School Motto
In Pursuit of Academic Excellence
School Mascot
Devils
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 0.72, 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
17:1
13:1
American Indian
n/a
n/a
Asian
9%
6%
Hispanic
38%
28%
Black
15%
17%
White
34%
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
Profile last updated: 02/09/2025
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 schools are Warren Township High School often compared to?
Warren Township High Schoolis often viewed alongside schools like Grayslake North High School by visitors of our site.
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?
3,687 students attend Warren Township High School.
What is the racial composition of the student body?
38% of Warren Township High School students are Hispanic, 34% 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 17:1, 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

School Choice vs. Neighborhood Schools: Key Factors
Explore school choice vs. neighborhood schools in 2025. Learn key factors parents should weigh when deciding the best fit for their child.

Best School Match 2025: Public vs Charter vs Magnet
Compare 2025 public, charter, and magnet school options with updated data, trends, and strategies to find the best fit.

Public School Boundaries and Equity in 2025
Explore how public school boundaries shape access, equity, and opportunity for students in 2025. Learn the impact on families and education policy.