Top Rankings
Illini Central CUSD 189 School District ranks among the top 20% of public school district in Illinois for:
Category
Attribute
Student Attention
Lowest student:teacher ratio (Top 1%)
For the 2025 school year, there are 4 public schools serving 668 students in Illini Central CUSD 189 School District. This district's average testing ranking is 3/10, which is in the bottom 50% of public schools in Illinois.
Public Schools in Illini Central CUSD 189 School District have an average math proficiency score of 12% (versus the Illinois public school average of 26%), and reading proficiency score of 25% (versus the 30% statewide average).
Minority enrollment is 5% of the student body (majority Hispanic), which is less than the Illinois public school average of 56% (majority Hispanic).
Overview
This School District
This State (IL)
# Schools
4 Schools
4,399 Schools
# Students
668 Students
1,881,779 Students
# Teachers
60 Teachers
136,665 Teachers
Student : Teacher Ratio
11:1
11:1
Student By Grade
District Rank
Illini Central CUSD 189 School District, which is ranked within the bottom 50% of all 844 school districts in Illinois (based off of combined math and reading proficiency testing data) for the 2020-2021 school year.
The school district's graduation rate of 80-89% has decreased from 85-89% over five school years.
Overall District Rank
#642 out of 852 school districts
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
(20-21)11%
28%
Reading/Language Arts Test Scores (% Proficient)
25%
30%
Science Test Scores (% Proficient)
40-44%
50%
Graduation Rate
80-89%
87%
Students by Ethnicity:
Diversity Score
0.10
0.70
% American Indian
n/a
1%
% Asian
n/a
6%
% Hispanic
3%
28%
% Black
n/a
16%
% White
95%
45%
% Hawaiian
n/a
n/a
% Two or more races
2%
4%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $20,430 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 $18,503 is less than the state median of $21,244. The school district spending/student has stayed relatively flat over four school years.
Total Revenue
$14 MM
$41,381 MM
Spending
$12 MM
$39,976 MM
Revenue / Student
$20,430
$21,990
Spending / Student
$18,503
$21,244
Best Illini Central CUSD 189 School District Public Schools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Illini Central Grade School
Rank:
5/
Bottom 50%10
208 N West Ave
Mason City, IL 62664
(217) 482-5180
Mason City, IL 62664
(217) 482-5180
Grades: K-5
| 255 students
Rank: #22.
Illini Central Middle School
Rank:
4/
Bottom 50%10
208 N West Ave
Mason City, IL 62664
(217) 482-3252
Mason City, IL 62664
(217) 482-3252
Grades: 6-8
| 151 students
Rank: #33.
Illini Central High School
Rank:
4/
Bottom 50%10
208 N West Ave
Mason City, IL 62664
(217) 482-3252
Mason City, IL 62664
(217) 482-3252
Grades: 9-12
| 190 students
Rank: n/an/a
160 E Chestnut St
Mason City, IL 62664
(217) 482-5180
Mason City, IL 62664
(217) 482-5180
Grades: PK
| 72 students
Frequently Asked Questions
How many schools belong to Illini Central CUSD 189 School District?
Illini Central CUSD 189 School District manages 4 public schools serving 668 students.
What is the rank of Illini Central CUSD 189 School District?
Illini Central CUSD 189 School District is ranked #613 out of 844 school districts in Illinois (bottom 50%) based off of combined math and reading proficiency testing data for the 2020-2021 school year. This district ranks in the top 20% of Illinois school districts for: Lowest student:teacher ratio (Top 1%)
What is the racial composition of students in Illini Central CUSD 189 School District?
95% of Illini Central CUSD 189 School District students are White, 3% of students are Hispanic, and 2% of students are Two or more races.
What is the student/teacher ratio of Illini Central CUSD 189 School District?
Illini Central CUSD 189 School District has a student/teacher ratio of 11:1, which is lower than the Illinois state average of 14:1.
What is Illini Central CUSD 189 School District's spending/student ratio?
The school district's spending/student of $18,503 is less than the state median of $21,244. The school district spending/student has stayed relatively flat over four school years.
Recent Articles

Parents’ Guide to Special Education
Special education law is not easy to decipher, with several regulations that govern special education services for disabled students. In this article, learn about the core components of the laws, rights, and individual education plans that can help create the best public school environment for your child.

Surveillance Cameras: Violation of Rights or Improved Security?
A school district in Virginia has given the green light to schools that want to install surveillance cameras in common areas like cafeterias and hallways. We’ll look at whether this is a violation of student privacy or the best way to keep order in schools.

Teachers in 19 States Allowed to Physically Punish Students
As of 2014, nineteen states still allow corporal punishment – spanking and paddling the most common choices – in their public schools. However, some argue that not only are these punishments physically harmful, they also are disproportionately administered to students of color. As a result, House democrats have taken up the issue in a new bill that would ban all forms of corporal punishment nationwide.