For the 2025 school year, there are 7 private high schools serving 876 students in St. Clair County, IL.
The top ranked private high schools in St. Clair County, IL include Althoff Catholic High School, First Baptist Academy, and Governor French Academy.
The average acceptance rate is 73%, which is lower than the Illinois private high school average acceptance rate of 81%.
Top Ranked St. Clair County Private High Schools (2025)
School
Location
Grades
Students
Althoff Catholic High School![Althoff Catholic High School Photo]( "Althoff Catholic High School Photo")
(Catholic)
5401 W Main St
Belleville, IL 62226
(618) 235-1100
Belleville, IL 62226
(618) 235-1100
Grades: 9-12
| 323 students
1111 E Highway 50
O Fallon, IL 62269
(618) 726-6040
O Fallon, IL 62269
(618) 726-6040
Grades: K-12
| 281 students
219 West Main Street
Belleville, IL 62220
(618) 233-7542
Belleville, IL 62220
(618) 233-7542
Grades: PK-12
| 102 students
5100 N Illinois St
Fairview Heights, IL 62208
(618) 825-0609
Fairview Heights, IL 62208
(618) 825-0609
Grades: PK-12
| 35 students
Illinois Center For Autism
Special Education School
1306 Wabash Ave
Belleville, IL 62220
(618) 398-7500
Belleville, IL 62220
(618) 398-7500
Grades: PK-12
| 99 students
Jtc Academy
Special Education School
4850 Market St
East Saint Louis, IL 62207
(618) 398-2524
East Saint Louis, IL 62207
(618) 398-2524
Grades: 8-12
| 24 students
Jtc Boys Academy
Special Education School
353 N 88th St Hwy 157
East Saint Louis, IL 62203
(618) 398-2524
East Saint Louis, IL 62203
(618) 398-2524
Grades: 8-12
| 12 students
St. Clair County 17³Ô¹Ïs (Closed)
School
Location
Grades
Students
Apostolic Learning Academy (Closed 2012)
(Pentecostal)
400 Louisa Avenue
Dupo, IL 62239
(618) 286-4279
Dupo, IL 62239
(618) 286-4279
Grades: K-12
| n/a students
Faith Baptist School (Closed 2025)
(Baptist)
413 E Main St
Belleville, IL 62220
(618) 234-3391
Belleville, IL 62220
(618) 234-3391
Grades: PK-12
| 48 students
116 E 1st St
East Saint Louis, IL 62206
(618) 337-2880
East Saint Louis, IL 62206
(618) 337-2880
Grades: K-9
| 104 students
Holy Rosary School (Closed 2015)
(Catholic)
2727 N 43rd Street
East Saint Louis, IL 62201
(618) 271-8600
East Saint Louis, IL 62201
(618) 271-8600
Grades: K-8
| 133 students
207 S Market St
New Athens, IL 62264
(618) 475-2170
New Athens, IL 62264
(618) 475-2170
Grades: PK-8
| 45 students
St. Mary Elementary School (Closed 2006)
(Catholic)
1722 West Main Street
Belleville, IL 62226
(618) 234-2476
Belleville, IL 62226
(618) 234-2476
Grades: PK-8
| 108 students
Frequently Asked Questions
What are the top ranked private high schools in St. Clair County, IL?
The top ranked private high schools in St. Clair County, IL include Althoff Catholic High School, First Baptist Academy, and Governor French Academy.
How many private high schools are located in St. Clair County?
7 private high schools are located in St. Clair County.
How diverse are private high schools in St. Clair County?
St. Clair County private high schools are approximately 31% minority students, which is lower than the Illinois private school average of 35%.
Recent Articles
Is It Easier to Land a 17³Ô¹Ï Job When You're Already Employed?
Is it easier to land a private school job when you're already employed? This article breaks down employer biases, networking advantages, and negotiation leverage—plus the latest hiring trends in independent schools. If you’re considering a move, here’s how to maximize your position.
How to Secure a 17³Ô¹Ï Job When You're Unemployed Without the Stigma
Finding a private school job while unemployed can be tough, but it doesn't have to hold you back. This article breaks down networking strategies, ways to stand out, and smart approaches to keep your confidence strong. Learn how to turn setbacks into strengths and secure the right opportunity—without the stigma.
The 17³Ô¹Ï Job Hunt: Insider Tips for Employed & Unemployed Educators
Navigating the private school job market? Whether you're employed or unemployed, the right strategy can make all the difference. This article breaks down essential steps to keep your resume sharp, expand your network, and stay visible in the education community. Learn insider tips to position yourself for success in private schools.
