For the 2025-26 school year, there are 3 private schools serving 912 students in Monroe County, IL (there are 12 public schools, serving 5,036 public students). 15% of all K-12 students in Monroe County, IL are educated in private schools (compared to the IL state average of 12%).
The top ranked private schools in Monroe County, IL include Immaculate Conception and SS Peter & Paul Catholic School.
100% of private schools in Monroe County, IL are religiously affiliated (most commonly Catholic).
Top Ranked Monroe County Private Schools (2025-26)
School
Location
Quick Facts
Immaculate Conception![Immaculate Conception Photo - Mr. Kish welcomes students on the first day. Immaculate Conception Photo - Mr. Kish welcomes students on the first day.]()

(Catholic)
321 S Metter Avenue
Columbia, IL 62236
(618) 281-5353
Columbia, IL 62236
(618) 281-5353
Gr: PK-8 | 393 students Avg. class size: 16 students Sports: 4 Tuition listed
SS Peter & Paul Catholic School
(Catholic)
217 W 3rd St
Waterloo, IL 62298
(618) 939-7217
Waterloo, IL 62298
(618) 939-7217
Gr: PK-8 | 340 students Tuition listed
Gibault Catholic
(Catholic)
501 Columbia Ave
Waterloo, IL 62298
(618) 922-9751
Waterloo, IL 62298
(618) 922-9751
Gr: 9-12 | 179 students Avg. class size: 8 students Tuition listed
Frequently Asked Questions
What are the top ranked private schools in Monroe County, IL?
The top ranked private schools in Monroe County, IL include Immaculate Conception and SS Peter & Paul Catholic School.
How many private schools are located in Monroe County?
3 private schools are located in Monroe County.
What percentage of students in Monroe County go to private school?
15% of all K-12 students in Monroe County are educated in private schools (compared to the IL state average of 12%).
What percentage of private schools are religiously affiliated in Monroe County?
100% of private schools in Monroe County are religiously affiliated (most commonly Catholic).
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