Enrollment
139
Middle
DISTRICT 160 · STATE 462
SCHOOL COMMUNITY·ILLINI CENTRAL CUSD 189·NCES 170011305577
Illini Central Middle School
208 N West Ave, Mason City, IL 62664 · (217) 482-5180 · Mason County
GRADES 06–08MIDDLE42-RURALTITLE IREGULAR SCHOOL139 STUDENTS
C-
allk12 Grade
Scored higher than 21% of Illinois public middle schools
- CTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- C-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Illinois public middle schools
Student : Teacher
11.2:1
12 FTE teachers
DISTRICT 12.8:1 · STATE 13.0:1
Free / Reduced Lunch
45%
63 students
DISTRICT 47% · STATE 56%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 6 | 42 | 30% |
| Grade 7 | 49 | 35% |
| Grade 8 | 48 | 35% |
Student demographics
8%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 11% · STATE 69% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
Illini Central Middle School→Illini Central High School
Feeds from
Based on grade levels within Illini Central CUSD 189. Attendance zones can vary; confirm enrollment with the district.
QUIET COMMUNITY
Be the first to start a discussion at Illini Central Middle School.
START A DISCUSSIONTest scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)English Language Arts
54.0%
IL avg 51.0% . +21.4pp since 2023
Math
27.3%
IL avg 37.9% . +6.0pp since 2023
What this means: On the IAR + ISA, Illinois's statewide test, about 54 of every 100 students at this school read and write at grade level and about 27 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 21 points since 2023, while math scores are up about 6 points.
IAR + ISA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 54.0% | 27.3% |
| 2023-24 | 32.6% | 21.3% |
% Proficient (Levels 4-5), all students and all tested grades.
Source: IAR + ISA. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
35.7%
composite math + reading, all grades
Predicted
45.3%
based on IL schools with similar FRL share
Beats by
-9.6pp
below demographic expectation
What this means: About 36% of students here test proficient in math and reading, compared with the roughly 45% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Illini Central Middle School
Illini Central Middle School's state test result (35.7% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Illini Central Middle School this school | 139 | 45.3% | 35.7% |
| Jasper Co Jr High Newton | 176 | 45.5% | 35.5% |
| Central A & M Middle School Assumption | 177 | 44.6% | 29.9% |
| Tri-City Jr High School Buffalo | 137 | 48.9% | 50.6% |
| Southwestern Middle School Piasa | 171 | 42.1% | 39.7% |
| Midwest Central Middle School Green Valley | 183 | 47.5% | 40.6% |
Matched among Illinois middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Illini Central Middle School ranks
Among middle schools| Measure | This school | In Illinois |
|---|---|---|
| State test proficiency ranked highest first | 35.7% | #380 of 578 |
| Math proficiency ranked highest first | 27.3% | #384 of 640 ▼ 11 |
| Reading proficiency ranked highest first | 54.0% | #361 of 640 ▲ 113 |
| Enrollment ranked largest first | 139 | #619 of 691 |
| Free and reduced lunch ranked highest share first | 45.3% | #339 of 581 |
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
139
0 (0%) vs 2020
-39% since 2000-01, when it was 229
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 139 | 12.5 | 11.2:1 | 45% (63) |
| 2023-24 | 151 | 12.4 | 12.2:1 | 18% (27) |
| 2022-23 | 142 | 12 | 11.8:1 | 22% (31) |
| 2020-21 | 139 | N/A | N/A | N/A |
| 2017-18 | 158 | 13.4 | 11.8:1 | 49% (78) |
| 2015-16 | 138 | 13 | 10.6:1 | 49% (68) |
| 2010-11 | 190 | 11 | 17.3:1 | 51% (97) |
| 2000-01 | 229 | 18 | 12.7:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Illini Central Middle School.
Since 2017-18: students down 12% (158 to 139); teachers down 7% (13.4 to 12.5).
About Illini Central Middle School
In Mason City, Illinois, part of Mason County, Illini Central Middle School is a middle-grades school. The school had 139 students in grades 6 through 8 in 2024-25. An average school in this group (middle schools in Illinois) has about 462 students.
The 4 schools in Illini Central CUSD 189 enroll 640 students altogether, Illini Central Middle School among them.
The student body at Illini Central Middle School is 96% White. Other groups include 2% Hispanic and 2% multiracial. The county population is about 95% White, within a few points of the school. Illini Central Middle School's diversity index is 8%, against a US figure of 70%.
Its teaching staff equals 12.5 full-time positions, a ratio of 11.2:1. On average, middle schools in Illinois have 13.0:1, compared with 11.2:1 here. Around 45% of the school's students qualify for free or reduced-price meals.
Measured against Illinois public middle schools, Illini Central Middle School receives a C-. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.
After adjusting for student poverty, Illini Central Middle School lands between the top and bottom 10% of Illinois schools. Its average proficiency rate on state tests is 35.7%; the prediction is 45.3%.
Recent Census Bureau figures for Mason County show that the median household income is $62,845, about 17% of adults have at least a bachelor's degree, and the poverty rate is about 11%. Besides Illini Central Middle School, Mason County has 8 other public schools.
Nearest public school: Illini Central High School, less than a tenth of a mile away. Within five miles are 3 other public schools. Illini Central Middle School is 4th of 8 nearby schools by average proficiency rate.
For locale, NCES codes Illini Central Middle School as Rural: Distant.
From 2020-21 to 2024-25, enrollment held near 139, starting from 139.
Discussions about Illini Central Middle School may include school events, clubs, and volunteer needs. Questions from prospective families are welcome too.
Mason County at a glance
View full county profilePopulation
12,745
Census ACS
Median income
$62,845
Household, ACS
Bachelor's+
17%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
9
2,124 students
Quick facts
Related schools
Other schools in Illini Central CUSD 189
- Illini Central Grade SchoolElementary · 264 students
- Illini Central High SchoolHigh · 172 students
- West Campus FacilityElementary · 65 students
Other schools in Mason City
- Illini Central Grade SchoolElementary · 264 students
- Illini Central High SchoolHigh · 172 students
- West Campus FacilityElementary · 65 students
Nearby schools
- Illini Central High School0.0 mi · 172
- Illini Central Grade School0.0 mi · 264
- West Campus Facility0.6 mi · 65
- Greenview Jr/Sr High School8.7 mi · 107
- Greenview Elementary School8.7 mi · 117
- New Holland-Middletown Elementary School9.7 mi · 70
Frequently asked questions
About Illini Central Middle SchoolWhat is the total enrollment at Illini Central Middle School?
Illini Central Middle School enrolls approximately 139 students in grades 06-08.
What grades does Illini Central Middle School serve?
Illini Central Middle School serves grades 06-08.
How many teachers does Illini Central Middle School have?
Illini Central Middle School employs 12 FTE teachers, for a student-to-teacher ratio of 11.2:1.
What is the racial breakdown of students at Illini Central Middle School?
At Illini Central Middle School, the student body is approximately 96% White, 2% Hispanic, 2% Two or more.
Is Illini Central Middle School public or private?
Illini Central Middle School is a public K-12 school, overseen by Illini Central CUSD 189.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.