Top Rankings
Century Community Unit School District 100 ranks among the top 20% of public school district in Illinois for:
Category
Attribute
Student Attention
Lowest student-teacher ratio (Top 1%)
For the 2025-26 school year, there is 1 public high school serving 154 students in Century Community Unit School District 100. This district's average high testing ranking is 1/10, which is in the bottom 50% of public high schools in Illinois.
Public High School in Century Community Unit School District 100 have an average math proficiency score of 5% (versus the Illinois public high school average of 26%), and reading proficiency score of 12% (versus the 29% statewide average).
Public High School in Century Community Unit School District 100 have a Graduation Rate of 80%, which is less than the Illinois average of 87%.
The school with highest graduation rate is Century Jr/sr High School, with ≥80% graduation rate. Read more about public school graduation rate statistics in Illinois or national school graduation rate statistics.
Minority enrollment is 14% of the student body (majority Black), which is less than the Illinois public high school average of 55% (majority Hispanic).
Overview
This School District
This State (IL)
# Schools
2 Schools
1,030 Schools
# Students
329 Students
605,599 Students
# Teachers
32 Teachers
42,717 Teachers
Student-Teacher Ratio
10:1
10:1
Student By Grade
District Rank
Century Community Unit School District 100, which is ranked within the bottom 50% of all 864 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 90% has increased from 80% over five school years.
Overall District Rank
#717 out of 865 school districts
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
17%
27%
Reading/Language Arts Test Scores (% Proficient)
10-14%
30%
Science Test Scores (% Proficient)
25-29%
50%
Graduation Rate
(21-22)≥90%
87%
Students by Ethnicity:
Diversity Score
0.31
0.69
% American Indian
n/a
n/a
% Asian
n/a
6%
% Hispanic
1%
29%
% Black
10%
16%
% White
83%
45%
% Hawaiian
n/a
n/a
% Two or more races
6%
4%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $19,581 in this school district is less than the state median of $22,423. The school district revenue/student has grown by 6% over four school years.
The school district's spending/student of $18,234 is less than the state median of $21,662. The school district spending/student has grown by 6% over four school years.
Total Revenue
$6 MM
$41,381 MM
Spending
$6 MM
$39,976 MM
Revenue / Student
$19,581
$22,423
Spending / Student
$18,234
$21,662
Best Century Community Unit School District 100 Public High Schools (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Century Jr/sr High School
(Math: ≤5% | Reading: 10-14%)
Rank:
Rank:
2/
Bottom 50%10
4721 Shawnee College Rd
Ullin, IL 62992
(618) 845-3518
Ullin, IL 62992
(618) 845-3518
Gr: 6-12 | 154 students Student-teacher ratio: 10:1 Minority enrollment: 14%
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