Serving 1,470 students in grades 9-12, Crystal Lake Central High School ranks in the top 30% of all schools in Illinois for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 34% (which is higher than the Illinois state average of 28%). The percentage of students achieving proficiency in reading/language arts is 34% (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 14:1.
Minority enrollment is 33% of the student body (majority Hispanic), which is lower than the Illinois state average of 55% (majority Hispanic).
Quick Stats (2024-25)
- Grades: 9-12
- Enrollment: 1,470 students
- Student:Teacher Ratio: 17:1
- Minority Enrollment: 33%
- Graduation Rate: 97% (Top 5% in IL)
- Overall Testing Rank: Top 30%
- Math Proficiency: 34% (Top 30%)
- Reading Proficiency: 34% (Top 50%)
- Science Proficiency: 61% (Top 50%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Crystal Lake Central High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Graduation Rate
School Overview
Crystal Lake Central High School's student population of 1,470 students has stayed relatively flat over five school years.
The teacher population of 87 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
1,470 students
Gender %
Total Classroom Teachers
87 teachers
Students by Grade
School Calendar
School Rankings
Crystal Lake Central High School ranks within the top 30% of all 3,426 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Crystal Lake Central High School is 0.48, 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
#985 out of 3426 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
(20-21)34%
28%
Reading/Language Arts Test Scores (% Proficient)
34%
30%
Science Test Scores (% Proficient)
61%
50%
Student : Teacher Ratio
17:1
14:1
American Indian
n/a
1%
Asian
3%
6%
Hispanic
28%
27%
Black
2%
17%
White
67%
45%
Hawaiian
n/a
n/a
Two or more races
n/a
4%
All Ethnic Groups
Graduation Rate
97%
87%
Eligible for Free Lunch
22%
43%
Eligible for Reduced Lunch
7%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
Frequently Asked Questions
What is Crystal Lake Central High School's ranking?
Crystal Lake Central High School is ranked #985 out of 3,426 schools, which ranks it among the top 30% of public schools in Illinois.
What schools are Crystal Lake Central High School often compared to?
Crystal Lake Central High Schoolis often viewed alongside schools like Crystal Lake South High School, Prairie Ridge High School, Cary-grove Community High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
34% of students have achieved math proficiency (compared to the 28% IL state average), while 34% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Crystal Lake Central High School?
The graduation rate of Crystal Lake Central High School is 97%, which is higher than the Illinois state average of 87%.
How many students attend Crystal Lake Central High School?
1,470 students attend Crystal Lake Central High School.
What is the racial composition of the student body?
67% of Crystal Lake Central High School students are White, 28% of students are Hispanic, 3% of students are Asian, and 2% of students are Black.
What is the student:teacher ratio of Crystal Lake Central High School?
Crystal Lake Central High School has a student ration of 17:1, which is higher than the Illinois state average of 14:1.
What grades does Crystal Lake Central High School offer ?
Crystal Lake Central High School offers enrollment in grades 9-12
What school district is Crystal Lake Central High School part of?
Crystal Lake Central High School is part of CHSD 155 School District.
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