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Public School Review - Established 2003

Illini Central CUSD 189 School District

208 N West Ave
Mason City, IL 62664-1066
(District boundaries shown in map)
: 
4/
10
Bottom 50%
Tel: (217) 482-5180
www.illinicentral.org

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 2026 school year, there are 4 public schools serving 640 students in Illini Central CUSD 189 School District. This district's average testing ranking is 4/10, 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 19% (versus the Illinois public school average of 27%), and reading proficiency score of 25% (versus the 30% statewide average).
Minority enrollment is 6% of the student body (majority Hispanic), which is less than the Illinois public school average of 55% (majority Hispanic).

Overview

This School District
This State (IL)
# Schools
4 Schools
4,394 Schools
# Students
640 Students
1,842,872 Students
# Teachers
62 Teachers
137,935 Teachers
Student-Teacher Ratio
10:1
10:1

Student By Grade

Comparison of Students By Grade Trends

GradeIllini Central CUSD 189 School DistrictIllinois
Pre-K6584
Kind43124
150131
240134
345140
442138
544138
642138
749140
848143
946152
1043154
1143151
1240155
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District Rank

Illini Central CUSD 189 School District, which is ranked within the bottom 50% of all 861 school districts in Illinois (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 80-89% has decreased from 85-89% over five school years.
Definition of Terms
This School District
State Average (IL)
#550 out of 865 school districts
(Bottom 50%)

Overall School District Rank Trends

YearIllini Central CUSD 189 School District
2023#550
2022#642
2021#757
2019#550
2018#705
2017#668
2016#607
2015#598
2014#637
2013#501
2012#607
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19%
27%

Math Proficiency Trends

YearIllini Central CUSD 189 School DistrictIllinois
202319%27%
202111%28%
201922%33%
201818%32%
201713%32%
201618%31%
201517%29%
201446%59%
201355%58%
201280%80%
201177%80%
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25%
30%

Reading and Language Arts Proficiency Trends

YearIllini Central CUSD 189 School DistrictIllinois
202225%30%
202118%32%
201936%38%
201818%37%
201732%38%
201630%36%
201529%38%
201453%57%
201360%58%
201274%75%
201174%75%
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40-44%
50%
(21-22)
80-89%
87%

Graduation Rate Trends

YearIllini Central CUSD 189 School DistrictIllinois
202284%87%
201887%87%
201777%87%
201690%85%
201592%85%
201487%86%
201384%83%
201282%82%
201177%83%
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Students by Ethnicity:

0.11
0.69

Comparison of Diversity Score Trends

YearIllini Central CUSD 189 School DistrictIllinois
20240.090.70
20230.100.70
20220.100.68
20210.100.68
20200.120.68
20190.120.68
20180.090.67
20170.090.67
20160.090.67
20150.100.67
20140.100.66
20130.090.66
20120.070.65
20110.050.66
20100.020.64
20090.020.64
20080.040.64
20070.030.63
20060.030.61
20050.040.61
20040.030.60
20030.050.59
20020.030.59
20010.030.58
20000.020.57
19990.010.56
19980.020.56
19970.020.54
19960.020.53
19950.020.53
19940.010.52
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% American Indian
n/a
n/a
% Asian
n/a
6%

Asian Student Percentage Comparison Over Years (2022-2023)

YearIllini Central CUSD 189 School DistrictIllinois
20231%6%
20221%5%
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% Hispanic
3%
29%

Hispanic Student Percentage Comparison Over Years (1990-2024)

YearIllini Central CUSD 189 School DistrictIllinois
20243%28%
20232%27%
20222%27%
20213%27%
20203%26%
20193%26%
20182%26%
20172%26%
20162%26%
20151%25%
20142%25%
20132%24%
20122%24%
20111%23%
20102%22%
20092%22%
20082%21%
20072%20%
20061%19%
20052%18%
20041%18%
20031%17%
20021%16%
20012%15%
19961%12%
19951%12%
19941%11%
19901%9%
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% Black
n/a
16%

Black Student Percentage Comparison Over Years (1997-2011)

YearIllini Central CUSD 189 School DistrictIllinois
20112%18%
20041%21%
20031%21%
20021%21%
19971%20%
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% White
94%
45%

White Student Percentage Comparison Over Years (1994-2024)

YearIllini Central CUSD 189 School DistrictIllinois
202495%45%
202395%45%
202295%47%
202195%47%
202094%48%
201994%48%
201895%49%
201795%49%
201695%49%
201595%49%
201495%50%
201396%50%
201296%51%
201197%51%
201098%53%
200998%53%
200898%54%
200798%55%
200699%56%
200598%57%
200498%57%
200398%58%
200298%59%
200198%60%
2000100%61%
1999100%62%
1998100%63%
199799%64%
199699%64%
199599%65%
199499%65%
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% Hawaiian
n/a
n/a
% Two or more races
3%
4%

Two or More Races Student Percentage Comparison Over Years (2014-2024)

YearIllini Central CUSD 189 School DistrictIllinois
20242%4%
20232%4%
20222%4%
20212%4%
20203%4%
20193%4%
20183%3%
20173%3%
20163%3%
20154%3%
20143%3%
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All Ethnic Groups

District Revenue and Spending

The revenue/student of $21,323 in this school district is less than the state median of $22,455. The school district revenue/student has grown by 10% over four school years.
The school district's spending/student of $19,313 is less than the state median of $21,692. The school district spending/student has stayed relatively flat over four school years.
Definition of Terms
This School District
This State (IL)
Total Revenue
$14 MM
$41,381 MM

Total Revenues Trends

YearIllini Central CUSD 189 School DistrictIllinois
2023$14 MM$15 MM
2022$13 MM$14 MM
2021$14 MM$15 MM
2020$13 MM$14 MM
2019$12 MM$14 MM
2018$13 MM$15 MM
2017$12 MM$13 MM
2016$11 MM$12 MM
2015$10 MM$10 MM
2014$10 MM$12 MM
2012$10 MM$11 MM
2011$11 MM$11 MM
2010$10 MM$10 MM
2009$10 MM$10 MM
2008$9 MM$9 MM
2007$9 MM$9 MM
2006$8 MM$8 MM
2005$8 MM$8 MM
2004$8 MM$8 MM
2003$8 MM$7 MM
2002$8 MM$8 MM
2001$8 MM$7 MM
2000$8 MM$7 MM
1999$7 MM$7 MM
1998$6 MM$6 MM
1997$6 MM$5 MM
1996$6 MM$5 MM
1995$6 MM$5 MM
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Spending
$12 MM
$39,976 MM

Total Expenditure Trends

YearIllini Central CUSD 189 School DistrictIllinois
2023$12 MM$14 MM
2022$13 MM$14 MM
2021$12 MM$14 MM
2020$13 MM$14 MM
2019$11 MM$13 MM
2018$11 MM$14 MM
2017$12 MM$12 MM
2016$11 MM$12 MM
2015$9 MM$11 MM
2014$9 MM$12 MM
2012$9 MM$11 MM
2011$9 MM$11 MM
2010$9 MM$11 MM
2009$12 MM$10 MM
2008$9 MM$9 MM
2007$9 MM$9 MM
2006$8 MM$8 MM
2005$8 MM$8 MM
2004$8 MM$8 MM
2003$8 MM$8 MM
2002$8 MM$8 MM
2001$8 MM$7 MM
2000$8 MM$7 MM
1999$7 MM$6 MM
1998$6 MM$6 MM
1997$6 MM$5 MM
1996$6 MM$5 MM
1995$5 MM$5 MM
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Revenue / Student
$21,323
$22,455

Average Revenue Per Student Trends

YearIllini Central CUSD 189 School DistrictIllinois
2023$21,028$17,333
2022$19,263$19,707
2021$20,491$17,764
2020$19,263$19,707
2019$18,014$17,662
2018$17,753$19,255
2017$16,243$17,801
2016$13,955$14,596
2015$12,829$11,118
2014$13,071$13,203
2012$11,861$11,701
2011$12,150$11,859
2010$11,002$11,118
2009$10,913$10,546
2008$9,440$11,298
2007$9,204$10,143
2006$8,603$9,054
2005$8,657$9,158
2004$8,676$8,999
2003$7,992$8,614
2002$7,920$8,976
2001$7,958$8,649
2000$7,628$8,451
1999$7,004$7,697
1998$5,258$5,971
1997$5,306$5,662
1995$5,598$5,677
1992$4,492$4,514
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Spending / Student
$19,313
$21,692

Average Expenditure Per Student Trends

YearIllini Central CUSD 189 School DistrictIllinois
2023$19,045$16,251
2022$18,828$19,097
2021$18,559$16,655
2020$18,828$19,097
2019$16,317$17,005
2018$15,862$18,215
2017$15,935$17,235
2016$14,713$14,516
2015$12,538$11,218
2014$11,464$12,904
2012$10,288$11,755
2011$10,097$11,220
2010$10,753$11,218
2009$13,347$10,416
2008$9,123$10,971
2007$9,203$9,827
2006$9,247$8,997
2005$8,873$9,234
2004$8,555$9,089
2003$8,378$9,395
2002$8,230$9,305
2001$7,619$8,562
2000$7,675$8,142
1999$6,502$7,325
1998$5,047$5,848
1997$5,111$5,503
1995$5,067$5,507
1992$4,637$4,672
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Best Illini Central CUSD 189 School District Public Schools (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Illini Central Middle School
(Math: 20-24% | Reading: 25-29%)
Rank:
6/
10
Top 50%
208 N West Ave
Mason City, IL 62664
(217) 482-5180
Gr: 6-8 | 139 students Student-teacher ratio: 12:1 Minority enrollment: 4%
Rank: #22.
Illini Central Grade School
(Math: 15-19% | Reading: 20-24%)
Rank:
5/
10
Bottom 50%
208 N West Ave
Mason City, IL 62664
(217) 482-5180
Gr: K-5 | 264 students Student-teacher ratio: 10:1 Minority enrollment: 7%
Rank: #33.
Illini Central High School
(Math: 11-19% | Reading: 20-29%)
Rank:
4/
10
Bottom 50%
208 N West Ave
Mason City, IL 62664
(217) 482-5180
Gr: 9-12 | 172 students Student-teacher ratio: 8:1 Minority enrollment: 4%
Rank: n/an/a
West Campus Facility
160 E Chestnut St
Mason City, IL 62664
(217) 482-5180
Gr: PK | 65 students Student-teacher ratio: 22:1 Minority enrollment: 8%

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 640 students.
What is the rank of Illini Central CUSD 189 School District?
Illini Central CUSD 189 School District is ranked #555 out of 861 school districts in Illinois (bottom 50%) based off of combined math and reading proficiency testing data for the 2022-2023 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?
94% of Illini Central CUSD 189 School District students are White, 3% of students are Hispanic, and 3% 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 10:1, 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 $19,313 is less than the state median of $21,692. The school district spending/student has stayed relatively flat over four school years.

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Quick Facts (2026)

  • District size: 4 schools
  • Grades: PK-12
  • Enrollment: 640 students
  • Student-Teacher Ratio: 10:1
  • Minority Enrollment: 6%
  • : 80-89% (Btm 50% in IL)
  • : Bottom 50%
  • : 19% (Btm 50%)
  • : 25% (Btm 50%)
  • : 40-44% (Btm 50%)
  • Source: National Center for Education Statistics (NCES), IL Dept. of Education

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