Illini Central High School
🇺🇸 Official data · 2025Mason City, Illinois 62664 · Illini Central CUSD 189
#387 of 691 high schools in Illinois
#12814 of 16,910 nationally
About Illini Central High School
Illini Central High School is a public high located in Mason City, in the Illini Central CUSD 189 school district of Illinois, United States. It caters for Grades 9–12. In 2025 it enrolled 172 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 32.3 out of 100, placing it in the lower 50% of high schools in United States and 387th of 691 ranked high schools in Illinois. Its strongest component is students per teacher (75th percentile), and its weakest is math proficiency (3th percentile).
Other published figures: enrollment 172.
There are 4 schools in Mason City; Illini Central High School ranks 3rd of 3 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)5%
- Reading proficiency (30%)24.5%
- Community advantage (fewer free/reduced-price lunch) (25%)38.4%
- Students per teacher (15%)8.6
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Illini Central High School by the official sources.
- Enrollment
- 172
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 38.4%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 8.6
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 24.5%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 5%
- Share of tested students proficient or above (all students, all grades).
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Schools near Illini Central High School
Closest schools by straight-line distance, with their Success Index (US).
Illini Central Grade School
Mason City · Public elementary · Grades K–5
264 students · 0 m away
Illini Central Middle School
Mason City · Public middle · Grades 6–8
139 students · 0 m away
West Campus Facility
Mason City · Public other · Grades PK–PK
65 students · 894 m away
Greenview Jr/Sr High School
Greenview · Public high · Grades 6–12
107 students · 14 km away
Greenview Elementary School
Greenview · Public elementary · Grades PK–5
117 students · 14 km away
Similar schools
Public high schools in Illinois with a comparable Enrollment.
Calhoun High School
Hardin · Public high · Grades 9–12
171 students
West Prairie Senior High School
Colchester · Public high · Grades 9–12
170 students
Woodlawn High School
Woodlawn · Public high · Grades 9–12
174 students
Durand High School
Durand · Public high · Grades 9–12
170 students
Stockton Sr High School
Stockton · Public high · Grades 9–12
170 students
Bushnell-Prairie City High Sch
Bushnell · Public high · Grades 9–12
175 students
Frequently asked questions
Is Illini Central High School a good school?
Illini Central High School has a Success Index (US) of 32.3 out of 100 (Lower 50% of high schools in United States) and ranks #387 of 691 in Illinois. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Illini Central High School rank in Illinois?
Illini Central High School ranks #387 of 691 high schools in Illinois and #12814 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Illini Central High School?
Illini Central High School had 172 students in 2025.
Is Illini Central High School a elementary school or a high school?
Illini Central High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Illini Central High School?
There are 5 schools within 15 km of Illini Central High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.