Serving 1,375 students in grades 9-12, Grayslake Central 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 43% (which is higher than the Illinois state average of 28%). 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 13:1 is equal to the Illinois state level of 13:1.
Minority enrollment is 42% of the student body (majority Hispanic), which is lower than the Illinois state average of 55% (majority Hispanic).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 1,375 students
- Student:Teacher Ratio: 13:1
- Minority Enrollment: 42%
- Graduation Rate: 91% (Top 50% in IL)
- Overall Testing Rank: Top 20%
- Math Proficiency: 43% (Top 20%)
- Reading Proficiency: 47% (Top 20%)
- Science Proficiency: 67% (Top 20%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Grayslake Central High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Grayslake Central High School's student population of 1,375 students has stayed relatively flat over five school years.
The teacher population of 104 teachers has grown by 10% over five school years.
Grades Offered
Grades 9-12
Total Students
1,375 students
Gender %
Total Classroom Teachers
104 teachers
Students by Grade
School Rankings
Grayslake Central High School ranks within the top 20% of all 3,426 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Grayslake Central High School is 0.61, which is less than the diversity score at state average of 0.70. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#448 out of 3426 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
(20-21)43%
28%
Reading/Language Arts Test Scores (% Proficient)
47%
30%
Science Test Scores (% Proficient)
67%
50%
Student : Teacher Ratio
13:1
13:1
American Indian
n/a
1%
Asian
9%
6%
Hispanic
22%
28%
Black
6%
16%
White
58%
45%
Hawaiian
n/a
n/a
Two or more races
5%
4%
All Ethnic Groups
Graduation Rate
91%
87%
Eligible for Free Lunch
11%
43%
Eligible for Reduced Lunch (11-12)
8%
27%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
Frequently Asked Questions
What is Grayslake Central High School's ranking?
Grayslake Central High School is ranked #448 out of 3,426 schools, which ranks it among the top 20% of public schools in Illinois.
What schools are Grayslake Central High School often compared to?
Grayslake Central High Schoolis often viewed alongside schools like Grayslake North High School, Warren Township High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
43% of students have achieved math proficiency (compared to the 28% IL state average), while 47% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Grayslake Central High School?
The graduation rate of Grayslake Central High School is 91%, which is higher than the Illinois state average of 87%.
How many students attend Grayslake Central High School?
1,375 students attend Grayslake Central High School.
What is the racial composition of the student body?
58% of Grayslake Central High School students are White, 22% of students are Hispanic, 9% of students are Asian, 6% of students are Black, and 5% of students are Two or more races.
What is the student:teacher ratio of Grayslake Central High School?
Grayslake Central High School has a student ration of 13:1, which is equal to the Illinois state average of 13:1.
What grades does Grayslake Central High School offer ?
Grayslake Central High School offers enrollment in grades 9-12
What school district is Grayslake Central High School part of?
Grayslake Central High School is part of Grayslake CHSD 127 School District.
School Reviews
Review Grayslake Central 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
Teaching in Contemporary Times
We explore why individuals choose teaching, illuminating intrinsic motivations, the influence of role models, the pursuit of lifelong learning, and the aspiration to impact society.
Demystifying IEPs
Unlock the power of Individualized Education Programs (IEPs) in this comprehensive guide. Discover how IEPs support students with diverse needs, including behavioral challenges. This article is a must-read for parents navigating the education system and aspiring teachers seeking to make a positive impact.
December 16, 2024
Personalized Learning: Revolutionizing Education for the 21st CenturyExplore the revolutionary approach of Personalized Learning in K-12 education. This article discusses the benefits, challenges, and potential of tailoring education to individual student needs, incorporating technology and adaptive learning methods to prepare students for the 21st century.
