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Collinsville High School

2201 S Morrison Ave, Collinsville, IL 62234

CSchola Grade
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Grades
9–12
High
Students
1,956
Enrolled 2024–25
Students per teacher
14.9 : 1
Full-time teachers
District
Collinsville CUSD 10
St. Clair County

Schola Grade C · Average

Letter grade (A–F) · compared with 684 Illinois high schools · How we grade
Test scores21% proficient in math & reading
45thpercentile
Equity8% of low-income students proficient
23rdpercentile
Attendance37% chronically absent
34thpercentile
Graduation rate88% graduate in 4 years
49thpercentile
College readinessAt least 26% take AP, IB or dual-enrollment courses
63rdpercentile
Class size14.9 students per teacher
35thpercentile

Percentiles compare this school with other Illinois high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Collinsville High School

Collinsville High School is a public high school in Collinsville, Illinois, serving grades 9–12. It is part of Collinsville CUSD 10. The school is located in a large suburb in St. Clair County.

In the 2024–25 school year, 1,956 students were enrolled, with about 14.9 students for every full-time teacher. That ratio is larger than the typical Illinois high school (13.3 students per teacher). Its Schola Grade is C (average), compared with 684 Illinois high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

2201 S Morrison Ave
Collinsville, IL 62234
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
1,956 students
Students per teacher
14.9 to 1
AP courses offered
19
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
Collinsville CUSD 10
County
St. Clair County
NCES school ID
171065001278

Schools near Collinsville High School

All 12 schools in Collinsville →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.