For the 2025-26 school year, there are 4 private high schools serving 591 students in Alton, IL.
The top ranked private high schools in Alton, IL include Center For Children To Heal And Achieve (ccha), Marquette Catholic High School, and St. Mary's School.
The average acceptance rate is 99%, which is higher than the Illinois private high school average acceptance rate of 81%.
Top Ranked Alton Private High Schools (2025-26)
School
Location
Quick Facts
Center For Children To Heal And Achieve (ccha)
Special Education School
1400 State St
Alton, IL 62002
(618) 465-3594
Alton, IL 62002
(618) 465-3594
Gr: 2-12 | 46 students
219 E 4th St
Alton, IL 62002
(618) 463-0580
Alton, IL 62002
(618) 463-0580
Gr: 9-12 | 377 students Avg. class size: 20 students Sports: 13 | Extracurrculars: 13 Tuition & acceptance rate listed
St. Mary's School
(Catholic)
1015 Milton Rd
Alton, IL 62002
(618) 465-9719
Alton, IL 62002
(618) 465-9719
Gr: 7-9 | 82 students Tuition listed
Mississippi Valley Christian School![Mississippi Valley Christian School Photo]( "Mississippi Valley Christian School Photo")
(Baptist)
2009 Seminary Street
Alton, IL 62002
(618) 462-1071
Alton, IL 62002
(618) 462-1071
Gr: PK-12 | 86 students Avg. class size: 10 students Sports: 3 | Extracurrculars: 2 Tuition & acceptance rate listed
Alton, Illinois Private Schools (Closed)
School
Location
Quick Facts
801 State St
Alton, IL 62002
(618) 465-8711
Alton, IL 62002
(618) 465-8711
Gr: PK-8 | 79 students
Frequently Asked Questions
What are the top ranked private high schools in Alton, IL?
The top ranked private high schools in Alton, IL include Center For Children To Heal And Achieve (ccha), Marquette Catholic High School, and St. Mary's School.
How many private high schools are located in Alton?
4 private high schools are located in Alton.
What percentage of private high schools are religiously affiliated in Alton?
Which private high schools in Alton are often viewed compared to one another?
Popular comparisons of private high schools in Alton include: Marquette Catholic High School vs. Mississippi Valley Christian School
Recent Articles
Transferring from Public to Private School Mid-Year: What to Expect
Considering a mid-year transfer from public to private school? Learn what to expect with admissions, academic placement, social adjustment, and financial aid to ensure a smooth transition.
A Guide to Day vs. Boarding School: Which Is Right for Your Family
Discover the key differences between day and boarding schools to determine the best fit for your child. Explore benefits, costs, lifestyle factors, and questions to help guide your family’s decision.
The A to Z of Private Schools 2025
Explore the A to Z of private schools in 2025—from admissions to tuition—offering parents and educators clear insights into today’s options.