Waterloo High School is a high school in Waterloo, Illinois, and is the only public high school in the Waterloo area.
Serving 879 students in grades 9-12, Waterloo High School ranks in the top 30% of all schools in Illinois for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 35-39% (which is higher than the Illinois state average of 28%). The percentage of students achieving proficiency in reading/language arts is 39% (which is higher than the Illinois state average of 30%).
The student:teacher ratio of 17:1 is higher than the Illinois state level of 13:1.
Minority enrollment is 6% of the student body (majority Hispanic), which is lower than the Illinois state average of 55% (majority Hispanic).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 879 students
- Student:Teacher Ratio: 17:1
- Minority Enrollment: 6%
- Graduation Rate: 91% (Top 50% in IL)
- Overall Testing Rank: Top 30%
- Math Proficiency: 35-39% (Top 30%)
- Reading Proficiency: 39% (Top 30%)
- Science Proficiency: 67% (Top 20%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Waterloo High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Science Proficiency
School Overview
Waterloo High School's student population of 879 students has grown by 9% over five school years.
The teacher population of 51 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
879 students
Gender %
Total Classroom Teachers
51 teachers
Year Founded
1895
School Rankings
Waterloo High School ranks within the top 30% of all 3,426 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Waterloo High School is 0.12, which is less than the diversity score at state average of 0.70. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#738 out of 3426 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
(20-21)35-39%
28%
Reading/Language Arts Test Scores (% Proficient)
39%
30%
Science Test Scores (% Proficient)
67%
50%
Student : Teacher Ratio
17:1
13:1
American Indian
n/a
1%
Asian
n/a
6%
Hispanic
3%
28%
Black
n/a
16%
White
94%
45%
Hawaiian
n/a
n/a
Two or more races
3%
4%
All Ethnic Groups
Graduation Rate
91%
87%
Eligible for Free Lunch
13%
43%
Eligible for Reduced Lunch
7%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
School Notes
- School Mascot: Bulldogs
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Waterloo High School's ranking?
Waterloo High School is ranked #738 out of 3,426 schools, which ranks it among the top 30% of public schools in Illinois.
What schools are Waterloo High School often compared to?
Waterloo High Schoolis often viewed alongside schools like Columbia High School, Belleville High School-west, Valmeyer High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
35-39% of students have achieved math proficiency (compared to the 28% IL state average), while 39% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Waterloo High School?
The graduation rate of Waterloo High School is 91%, which is higher than the Illinois state average of 87%.
How many students attend Waterloo High School?
879 students attend Waterloo High School.
What is the racial composition of the student body?
94% of Waterloo High School students are White, 3% of students are Hispanic, and 3% of students are Two or more races.
What is the student:teacher ratio of Waterloo High School?
Waterloo High School has a student ration of 17:1, which is higher than the Illinois state average of 13:1.
What grades does Waterloo High School offer ?
Waterloo High School offers enrollment in grades 9-12
What school district is Waterloo High School part of?
Waterloo High School is part of Waterloo CUSD 5 School District.
School Reviews
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