Crystal Lake South High School

  • Crystal Lake South High School serves 1,686 students in grades 9-12.
  • The percentage of students achieving proficiency in Math is ≤5% (which is lower than the Illinois state average of 31%) for the 2015-16 school year. The percentage of students achieving proficiency in Reading/Language Arts is 31% (which is lower than the Illinois state average of 36%) for the 2015-16 school year.
  • Crystal Lake South High School placed in the bottom 50% of all schools in Illinois for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%) for the 2015-16 school year.
  • The student:teacher ratio of 18:1 is higher than the Illinois state level of 16:1.
  • Minority enrollment is 16% of the student body (majority Hispanic), which is lower than the Illinois state average of 52%.

Top Placements

Crystal Lake South High School places among the top 20% of public schools in Illinois for:

School Overview

  • Crystal Lake South High School's student population of 1,686 students has declined by 6% over five school years.
  • The teacher population of 95 teachers has declined by 7% over five school years.
Grades OfferedGrades 9-12
Total Students1,686 students
This chart display total students of Crystal Lake South High School by year, with the latest 2015-16 school year data.
Gender %This chart display gender of Crystal Lake South High School
Total Classroom Teachers95 teachers
This chart display the total teachers of Crystal Lake South High School by year, with the latest 2015-16 school year data.
Students by GradeThis chart display the students of Crystal Lake South High School by grade.

School Comparison

  • Crystal Lake South High School is ranked within the bottom 50% of all 3,544 schools in Illinois (based off of combined Math and Reading proficiency testing data) for the 2015-16 school year.
  • The school's student:teacher ratio of 18:1 has stayed the same over five school years.
  • The diversity score of Crystal Lake South High School is 0.29, which is less than the diversity score at state average of 0.31. The school's diversity has stayed relatively flat over five school years.
Definition of Terms 2015-2016 School Year DataThis SchoolState Level (IL)
Overall School Rank#2823 out of 3,544 schools
(Bottom 50%)
Math Test Scores (% Proficient)≤5%
31%
This chart display the percentage of students that scored at or above 'proficient' levels in Math of Crystal Lake South High School and the percentage of public school students that scored at or above 'proficient' levels in Math of public schools in Illinois by year, with the latest 2015-16 school year data.
Reading / Language Arts Test Scores (% Proficient)
31%
36%
This chart display the percentage of students that scored at or above 'proficient' levels in Reading/Language Arts of Crystal Lake South High School and the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of Illinois by year, with the latest 2015-16 school year data.
Student : Teacher Ratio18:116:1
This chart display the student teacher ratio of Crystal Lake South High School and the public school average student teacher ratio of Illinois by year, with the latest 2015-16 school year data.
Asian
3%
5%
This chart display the percentage of Asian students in Crystal Lake South High School and the percentage of Asian public school students in Illinois by year, with the latest 2015-16 school year data.
Hispanic
10%
26%
This chart display the percentage of Hispanic students in Crystal Lake South High School and the percentage of Hispanic public school students in Illinois by year, with the latest 2015-16 school year data.
Black
1%
18%
This chart display the percentage of Black students in Crystal Lake South High School and the percentage of Black public school students in Illinois by year, with the latest 2015-16 school year data.
White
84%
48%
This chart display the percentage of White students in Crystal Lake South High School and the percentage of White public school students in Illinois by year, with the latest 2015-16 school year data.
Two or more races
2%
3%
This chart display the percentage of students of two or more races in Crystal Lake South High School and the percentage of public school students of two or more races in Illinois by year, with the latest 2015-16 school year data.
All Ethnic GroupsThis chart display the percentage breakdown of students of all ethnic groups in Crystal Lake South High School.This chart display the percentage breakdown of public school students of all ethnic groups in IL.
Diversity Score0.290.31
This chart display the diversity score of Crystal Lake South High School and the public school average diversity score of Illinois by year, with the latest 2015-16 school year data.
Graduation Rate
98%
85%
This chart display graduation rate of Crystal Lake South High School and public school graduation rate of Illinois by year, with the latest 2015-16 school year data.
Eligible for Free Lunch
14%
47%
This chart display the percentage of students who is eligible for free lunch in Crystal Lake South High School and the percentage of public school students who is eligible for free lunch in Illinois by year, with the latest 2015-16 school year data.
Eligible for Reduced Lunchn/a
3%
This chart display the percentage of students who is eligible for reduced lunch in Crystal Lake South High School and the percentage of public school students who is eligible for reduced lunch in Illinois by year, with the latest 2014-15 school year data.
School Statewide TestingView Education Department Test Scores
School District NameChsd 155 School District
Source: 2015-2016 (latest school year available) NCES, IL Dept. of Education

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