A−
Waterloo High School
PublicHighGrades 9–12
505 E Bulldog, Waterloo, IL 62298 · (618) 939-3455 · Part of Waterloo Community Unit School District 5
Students
876
Students per teacher
17:1
Free or reduced lunch
20%
Setting
Town
Grades
9–12
What stands out about Waterloo High School
- School Grade A−: near the top of Illinois’s public schools
- Math proficiency 11 pts above the state
- Reading / language arts 6 pts above the state
On the path
Where Hecker kids come from and go next.
6–8Waterloo Junior High Schoolin Waterloo
9–12Waterloo High SchoolYou are here
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency37%
State average 25.9%
Reading / language arts37%
State average 30.7%
Location
Directions ↗
505 E Bulldog, Waterloo
Students
Enrollment by grade
Grade 9209
Grade 10229
Grade 11216
Grade 12222
Enrollment over time
855’20
876’21
895’22
879’23
876’24
About steady.
Who goes here
White 93%Two or more races 4%Hispanic 3%American Indian/Alaska Native <1%Black <1%Asian <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
No ratings yet. Be the first neighbor to rate it.
Parents talk
Conversations in Town Square that mention Waterloo High School.
Other schools in Waterloo Community Unit School District 5
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.