For the 2026 school year, there are 3 public high schools serving 1,587 students in Monroe County, IL.
The top-ranked public high schools in Monroe County, IL are Waterloo High School, Columbia High School and Valmeyer High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Monroe County, IL public high schools have an average math proficiency score of 36% (versus the Illinois public high school average of 26%), and reading proficiency score of 39% (versus the 29% statewide average). High schools in Monroe County have an average ranking of 10/10, which is in the top 5% of Illinois public high schools.
Monroe County, IL public high school have a Graduation Rate of 94%, which is more than the Illinois average of 87%.
The school with highest graduation rate is Columbia High School, with ≥95% graduation rate. Read more about public school graduation rate statistics in Illinois or national school graduation rate statistics.
Minority enrollment is 7% of the student body (majority Hispanic), which is less than the Illinois public high school average of 55% (majority Hispanic).
Best Public High Schools in Monroe County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Waterloo High School
(Math: 40% | Reading: 39%)
Rank:
Rank:
8/
Top 30%10
505 E Bulldog
Waterloo, IL 62298
(618) 939-3455
Waterloo, IL 62298
(618) 939-3455
Gr: 9-12 | 876 students Student-teacher ratio: 17:1 Minority enrollment: 7%
Rank: #22.
Columbia High School
(Math: 30-34% | Reading: 40-44%)
Rank:
Rank:
8/
Top 30%10
77 Veterans Pkwy
Columbia, IL 62236
(618) 281-5001
Columbia, IL 62236
(618) 281-5001
Gr: 9-12 | 606 students Student-teacher ratio: 16:1 Minority enrollment: 8%
Rank: #33.
Valmeyer High School
(Math: 20-29% | Reading: ≤20%)
Rank:
Rank:
5/
Bottom 50%10
300 S Cedar Bluff Dr
Valmeyer, IL 62295
(618) 935-2100
Valmeyer, IL 62295
(618) 935-2100
Gr: 9-12 | 106 students Student-teacher ratio: 10:1 Minority enrollment: 5%
Frequently Asked Questions
What are the top-ranked public high schools in Monroe County, IL?
The top-ranked public high schools in Monroe County, IL include Waterloo High School, Columbia High School and Valmeyer High School.
How many public high schools are located in Monroe County?
3 public high schools are located in Monroe County.
What is the racial composition of students in Monroe County?
Monroe County public high schools minority enrollment is 7% of the student body (majority Hispanic), which is less than the Illinois public high schools average of 55% (majority Hispanic).
Which public high schools in Monroe County are often viewed compared to one another?
Popular comparisons of public high schools in Monroe County include: Valmeyer High School vs. Columbia High School, Valmeyer High School vs. Waterloo High School, Waterloo High School vs. Columbia High School
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