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 20%)
Math Proficiency
Highest math proficiency (Top 20%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 20%)
Science Proficiency
Highest science proficiency (Top 10%)
For the 2025 school year, there is 1 public preschool serving 396 students in Center Cass SD 66 School District.
Public Preschools in Center Cass SD 66 School District have a diversity score of 0.52, which is less than the Illinois public preschool average of 0.70.
Minority enrollment is 33% of the student body (majority Hispanic and Asian), which is less than the Illinois public preschool average of 58% (majority Hispanic).
Overview
This School District
This State (IL)
# Schools
3 Schools
1,387 Schools
# Students
1,130 Students
512,005 Students
# Teachers
75 Teachers
38,167 Teachers
Student : Teacher Ratio
15:1
15:1
District Rank
Center Cass SD 66 School District, which is ranked within the top 20% of all 844 school districts in Illinois (based off of combined math and reading proficiency testing data) for the 2020-2021 school year.
Overall District Rank
#104 out of 852 school districts
(Top 20%)
(Top 20%)

Math Test Scores (% Proficient)
(20-21)38%
28%

Reading/Language Arts Test Scores (% Proficient)
49%
30%

Science Test Scores (% Proficient)
74%
50%
Students by Ethnicity:
Diversity Score
0.52
0.70
# American Indian Students
n/a
1,218 Students
% American Indian Students
n/a
n/a
# Asian Students
123 Students
20,502 Students
% Asian Students
11%
4%
# Hispanic Students
146 Students
162,757 Students
% Hispanic Students
13%
32%
# Black Students
46 Students
94,002 Students
% Black Students
4%
18%
# White Students
757 Students
213,555 Students
% White Students
67%
42%
# Hawaiian Students
n/a
447 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
58 Students
19,465 Students
% of Two or more races Students
5%
4%
Students by Grade:
# Students in PK Grade:
23
76,065
# Students in K Grade:
114
71,052
# Students in 1st Grade:
128
68,700
# Students in 2nd Grade:
126
66,332
# Students in 3rd Grade:
137
56,657
# Students in 4th Grade:
121
53,643
# Students in 5th Grade:
112
46,874
# Students in 6th Grade:
109
28,049
# Students in 7th Grade:
132
22,127
# Students in 8th Grade:
128
22,424
# Students in 9th Grade:
-
40
# Students in 10th Grade:
-
12
# Students in 11th Grade:
-
12
# Students in 12th Grade:
-
18
# Ungraded Students:
-
-
District Revenue and Spending
The revenue/student of $19,771 in this school district is less than the state median of $21,990. 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 $21,244. The school district spending/student has stayed relatively flat over four school years.
Total Revenue
$22 MM
$41,381 MM

Spending
$22 MM
$39,976 MM

Revenue / Student
$19,771
$21,990

Spending / Student
$19,524
$21,244

Best Center Cass SD 66 School District Public Preschools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: n/an/a
2000 Manning Rd
Darien, IL 60561
(630) 783-5200
Darien, IL 60561
(630) 783-5200
Grades: PK-2
| 396 students
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