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Illini Central High School (Ranked Bottom 50% for 2026) - Mason City, IL

Illini Central High School

208 N West Ave
Mason City, IL 62664
(School attendance zone shown in map)
4/
10
Bottom 50%
Serving 172 students in grades 9-12, Illini Central High School ranks in the bottom 50% of all schools in Illinois for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 11-19% (which is lower than the Illinois state average of 27%). The percentage of students achieving proficiency in reading/language arts is 20-29% (which is lower than the Illinois state average of 30%).
The student-teacher ratio of 8:1 is lower than the Illinois state level of 13:1.
Minority enrollment is 4% of the student body (majority Hispanic), which is lower than the Illinois state average of 55% (majority Hispanic).

Quick Facts (2026)

  • Grades: 9-12
  • Enrollment: 172 students
  • Student-Teacher Ratio: 8:1
  • Minority Enrollment: 4%
  • : ≥90% (Top 50% in IL)
  • : Bottom 50%
  • : 11-19% (Btm 50%)
  • : 20-29% (Btm 50%)
  • : 50-59% (Top 50%)
  • Source: National Center for Education Statistics (NCES), IL Dept. of Education

Top Rankings

Illini Central High School ranks among the top 20% of public schools in Illinois for:

Category
Attribute
Most improved public schools

School Overview

Illini Central High School's student population of 172 students has declined by 10% over five school years.
The teacher population of 21 teachers has grown by 16% over five school years.
Grades Offered
Grades 9-12
Total Students
172 students
Total Classroom Teachers
21 teachers
School Calendar
School Motto
A Great Place To Learn

School Rankings

Illini Central High School ranks within the bottom 50% of all 3,542 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Illini Central High School is 0.08, which is less than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.
This School
State Level (IL)
#2146 out of 3542 schools
(Bottom 50%)
11-19%
27%
20-29%
30%
50-59%
50%
Student-Teacher Ratio
8:1
13:1
Hispanic
2%
29%
White
96%
45%
Two or more races
2%
4%
All Ethnic Groups
0.08
≥90%
87%
Eligible for Free Lunch
66%
43%
Eligible for Reduced Lunch (13-14)
5%
3%
School Statewide Testing
Source: National Center for Education Statistics (NCES), IL Dept. of Education

Frequently Asked Questions

What is Illini Central High School's ranking?
Illini Central High School is ranked #2146 out of 3,542 schools, which ranks it among the bottom 50% of public schools in Illinois.
What percent of students have achieved state testing proficiency in math and reading?
11-19% of students have achieved math proficiency (compared to the 27% IL state average), while 20-29% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Illini Central High School?
The graduation rate of Illini Central High School is 90%, which is higher than the Illinois state average of 87%.
How many students attend Illini Central High School?
172 students attend Illini Central High School.
What is the racial composition of the student body?
96% of Illini Central High School students are White, 2% of students are Hispanic, and 2% of students are Two or more races.
What is the student-teacher ratio of Illini Central High School?
Illini Central High School has a student ration of 8:1, which is lower than the Illinois state average of 13:1.
What grades does Illini Central High School offer ?
Illini Central High School offers enrollment in grades 9-12
What school district is Illini Central High School part of?
Illini Central High School is part of Illini Central CUSD 189 School District.

School Reviews

Review Illini Central High School. Reviews should be a few sentences in length. Please include any comments on:

  • Quality of academic programs, teachers, and facilities
  • Availability of music, art, sports and other extracurricular activities
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Quick Facts (2026)

  • Grades: 9-12
  • Enrollment: 172 students
  • Student-Teacher Ratio: 8:1
  • Minority Enrollment: 4%
  • : ≥90% (Top 50%)
  • : Bottom 50%
  • : 11-19% (Btm 50%)
  • : 20-29% (Btm 50%)
  • : 50-59% (Top 50%)
  • Source: National Center for Education Statistics (NCES), IL Dept. of Education

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