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Illini Central High School

208 N West Ave, Mason City, IL 62664

BSchola Grade
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Grades
9–12
High
Students
172
Enrolled 2024–25
Students per teacher
8.2 : 1
Full-time teachers
District
Illini Central CUSD 189
Mason County

Schola Grade B · Above average

Letter grade (A–F) · compared with 684 Illinois high schools · How we grade
Test scores24% proficient in math & reading
57thpercentile
Attendance21% chronically absent
79thpercentile
Graduation rate95% graduate in 4 years
84thpercentile
College readinessAt least 12% take AP, IB or dual-enrollment courses
27thpercentile
Class size8.2 students per teacher
96thpercentile

Percentiles compare this school with other Illinois high schools; the line marks the middle. Some measures aren't reported for this school, so the grade uses the ones available. 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 Illini Central High School

Illini Central High School is a public high school in Mason City, Illinois, serving grades 9–12. It is part of Illini Central CUSD 189. The school is located in a rural area in Mason County.

In the 2024–25 school year, 172 students were enrolled, with about 8.2 students for every full-time teacher. That ratio is smaller than the typical Illinois high school (13.3 students per teacher). Its Schola Grade is B (above average), compared with 684 Illinois high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

208 N West Ave
Mason City, IL 62664
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
172 students
Students per teacher
8.2 to 1
AP courses offered
1
Charter school
No
Magnet school
No
Locale
Rural — Distant
School district
Illini Central CUSD 189
County
Mason County
NCES school ID
170011305387

Schools near Illini Central High School

All 4 schools in Mason City →

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.