SchoolDataLookup

Crystal Lake South High School

Regular School · Crystal Lake, IL

Crystal Lake South High School is a regular school school in Crystal Lake, Illinois, serving grades 09–12 with 1,279 students enrolled (SY 2024-2025). The student-teacher ratio is 16.5:1.

Level
High
Grades
09 – 12
Enrollment
1,279
Teachers (FTE)
77.7
Student–Teacher Ratio
16.5:1
Status
Open
Lunch Program Participation
Yes participating without using any Provision or the CEO

Student Demographics (SY 2024-2025)

Race / Ethnicity Students Share
White 830 65%
Hispanic/Latino 329 26%
Asian 55 4%
Black or African American 35 3%
Two or more races 26 2%
American Indian / Alaska Native 4 0%
Total enrollment 1,279 656M / 623F

English Language Learners: 61 (5% of enrollment) · SY 2021–22

Academic Performance (SY 2021-2022)

Metric This School State Avg Tested
Math Proficiency 36.0% +8.3pp 27.7% 345
Reading Proficiency 35.0% +2.3pp 32.7% 345

Source: EDFacts, SY 2020–2021. Suppressed values (e.g. <=10%) indicate fewer than the minimum reportable threshold.

Programs & Discipline

AP Courses
Yes (20)
402 students enrolled
Gifted & Talented
None offered
SAT/ACT Takers
309
students tested · SY 2021–22
Out-of-School Suspensions
43
3.4% of enrollment · SY 2021–22
Chronically Absent
214
16.7% of enrollment · SY 2019–20

Source: Civil Rights Data Collection (CRDC), Office for Civil Rights & EDFacts.

Lunch Program (SY 2024-2025)

Category Students % of School
Total enrollment (est.) 1,279 100%

Contact & Location

1200 S McHenry Ave

Crystal Lake, IL 60014

Phone: (815)455-3860

http://ww2.d155.org/cls/default.aspx

District

CHSD 155

Per-pupil expenditure: $25,938

District enrollment: 5,405

Other Schools in District

Related Data

NCES ID

171137001368

Data sources: NCES CCD SY 2024-2025 (directory, staff, lunch), EDFacts SY 2020-21 (assessments), CRDC SY 2021-22 (programs & discipline), SEDA v6.0 (achievement estimates). Updated annually. NCES CCD