Cass Jr High School

8502 Bailey Rd, Darien, IL 60561

ASchola Grade
Grades
5–8
Middle
Students
313
Enrolled 2024–25
Students per teacher
11.8 : 1
Full-time teachers
District
Cass SD 63
DuPage County

Schola Grade A · Excellent

Letter grade (A–F) · compared with 688 Illinois middle schools · How we grade
Test scores48% proficient in math & reading
82ndpercentile
Equity32% of low-income students proficient
83rdpercentile
Attendance17% chronically absent
71stpercentile
Class size11.8 students per teacher
66thpercentile

Percentiles compare this school with other Illinois middle 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 Cass Jr High School

Cass Jr High School is a public middle school in Darien, Illinois, serving grades 5–8. It is part of Cass SD 63. The school is located in a large suburb in DuPage County.

In the 2024–25 school year, 313 students were enrolled, with about 11.8 students for every full-time teacher. That ratio is smaller than the typical Illinois middle school (12.7 students per teacher). Its Schola Grade is A (excellent), compared with 688 Illinois middle schools.

Grades & enrollment

Students per grade, 2024–25Grades 5–8

Location & nearby schools

8502 Bailey Rd
Darien, IL 60561
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School details

Type
Public School · What this means
Level
Middle
Grades offered
5–8
Enrollment (2024–25)
313 students
Students per teacher
11.8 to 1
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
Cass SD 63
County
DuPage County
NCES school ID
170879000519

Schools near Cass Jr High School

All 10 schools in Darien →

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.