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Crystal Lake South High School

Crystal Lake, Illinois · Grades 9 to 12 · Chsd 155

Public school

About Crystal Lake South High School

Crystal Lake South High School serves grades 9 through 12 as a public school in Crystal Lake, Illinois. Enrollment was 1,279 in the 2024-25 school year. With about 77.7 full-time-equivalent teachers, that works out to roughly 16.5 students per teacher. Chsd 155 School District runs 5 schools listed here, including this one. See them all. The surrounding area is classified as a suburb of a large metro area, in McHenry County. Families comparing options will find 36 other schools within 5 miles.

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School facts

Address	1200 S McHenry Ave, Crystal Lake, IL 60014
Phone	(815) 455-3860
School district	Chsd 155
Grades	9 to 12
Students (2024-25)	1,279
Teachers (full-time equivalent, 2024-25)	77.7
Students per teacher	16.5
Charter school	No
School type	Regular
Level	High
Locale (NCES)	Suburb, large, McHenry County

Source: NCES Common Core of Data (CCD), 2024-25 public school directory and membership files (NCES school ID 171137001368). Details may have changed since the survey. Schools can update them by claiming this profile.

Nearby schools

Haber Oaks CampusPublic · Grades 9 to 12Crystal Lake · under 0.1 mi Coventry Elem SchoolPublic · Grades K to 5Crystal Lake · 0.8 mi Lundahl Middle SchoolPublic · Grades 6 to 8Crystal Lake · 1 mi Canterbury Elem SchoolPublic · Grades K to 5Crystal Lake · 1.1 mi South Elem SchoolPublic · Grades K to 5Crystal Lake · 1.2 mi Indian Prairie Elem SchoolPublic · Grades PreK to 5Crystal Lake · 1.3 mi Woods Creek Elementary SchoolPublic · Grades K to 5Crystal Lake · 1.3 mi St Thomas the Apostle SchoolPrivate, Roman Catholic · Grades PreK to 8Crystal Lake · 1.6 mi

The 8 closest public, charter and private schools by straight-line distance, from NCES location data. Listings here are never paid.

Frequently asked questions

What grades does Crystal Lake South High School serve?

Crystal Lake South High School serves grades 9 through 12.

How many students attend Crystal Lake South High School?

Crystal Lake South High School reported 1,279 students in 2024-25, according to the NCES Common Core of Data.

What is the student-teacher ratio at Crystal Lake South High School?

About 16.5 students per full-time-equivalent teacher, based on 1,279 students and 77.7 teachers in federal data.

Is Crystal Lake South High School a public or charter school?

Crystal Lake South High School is a traditional public (non-charter) school.

What school district is Crystal Lake South High School in?

Crystal Lake South High School is part of Chsd 155 School District. See all schools in this district at https://parentschoolreview.com/districts/il/chsd-155-school-district/

Where is Crystal Lake South High School located?

Crystal Lake South High School is at 1200 S McHenry Ave, Crystal Lake, IL 60014. The phone number is (815) 455-3860.

How many other schools are near Crystal Lake South High School?

There are 36 other schools within 5 miles of Crystal Lake South High School in our directory.