Collinsville High School
1,978
Students
16.2:1
S:T Ratio
School Snapshot
Key metrics at a glanceAvg SAT Scoreout of 1600
943
B-
Below Avg
Avg ACT Scoreout of 36
22
B
Average
AP Coursescourses offered
23
A+
Excellent
AP Enrollmentof students
21%
C
Good
Student-Teacher Ratiostudents per teacher
16:1
B
Average
This Week at Collinsville – April 22, 2026
256 students practicing on Varsity Tutors
Academic Resources
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School Details
Address
2201 S Morrison Ave, Collinsville, IL 62234
Phone
(618)343-6140
Website
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District
Collinsville CUSD 10
Academic Calendar
2025-2026
Important dates, holidays, and school events