Center Cass SD 66 School District

699 Plainfield Rd
Downers Grove, IL 60516-5057
(District boundaries shown in map)
10/
10
Top 10%

Top Rankings

Center Cass SD 66 School District ranks among the top 20% of public school district in Illinois for:

Category
Attribute
Overall Rank
Highest overall rank (Top 10%)
Math Proficiency
Highest math proficiency (Top 10%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 20%)
Science Proficiency
Highest science proficiency (Top 10%)
For the 2026 school year, there is 1 public preschool serving 410 students in Center Cass SD 66 School District.
Public Preschools in Center Cass SD 66 School District have a diversity score of 0.53, which is less than the Illinois public preschool average of 0.70.
Minority enrollment is 34% of the student body (majority Hispanic and Asian), which is less than the Illinois public preschool average of 59% (majority Hispanic).

Overview

This School District
This State (IL)
# Schools
3 Schools
1,367 Schools
# Students
1,130 Students
505,966 Students
# Teachers
78 Teachers
38,382 Teachers
Student-Teacher Ratio
14:1
14:1

Student By Grade

District Rank

Center Cass SD 66 School District, which is ranked within the top 20% of all 861 school districts in Illinois (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
This School District
State Average (IL)
#85 out of 865 school districts
(Top 10%)
47%
27%
49%
30%
74%
50%
(2022-23)
13.7%
29.7%

Students by Ethnicity:

0.51
0.70
% American Indian
n/a
n/a
% Asian
11%
4%
% Hispanic
14%
33%
% Black
3%
18%
% White
68%
41%
% Hawaiian
n/a
n/a
% Two or more races
4%
4%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $19,771 in this school district is less than the state median of $22,456. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $19,524 is less than the state median of $21,694. The school district spending/student has declined by 19% over four school years.
This School District
This State (IL)
Total Revenue
$22 MM
$41,381 MM
Spending
$22 MM
$39,976 MM
Revenue / Student
$19,771
$22,456
Spending / Student
$19,524
$21,694

Best Center Cass SD 66 School District Public Preschools (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
2000 Manning Rd
Darien, IL 60561
(630) 783-5200
Gr: PK-2 | 410 students Student-teacher ratio: 17:1 Minority enrollment: 34%

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Quick Facts (2026)

  • District size: 3 schools
  • Grades: PK-08
  • Enrollment: 1,130 students
  • Student-Teacher Ratio: 14:1
  • Minority Enrollment: 32%
  • : Top 10% in IL
  • : 47% (Top 10%)
  • : 49% (Top 20%)
  • : 74% (Top 10%)
  • Source: National Center for Education Statistics (NCES), IL Dept. of Education

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