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Best Alton Private Schools (2025)

For the 2025 school year, there are 7 private schools serving 992 students in Alton, IL (there are 9 public schools, serving 4,644 public students). 18% of all K-12 students in Alton, IL are educated in private schools (compared to the IL state average of 12%).
The top ranked private schools in Alton, IL include Marquette Catholic High School and St. Mary School.
The average acceptance rate is 99%, which is higher than the Illinois private school average acceptance rate of 90%.
71% of private schools in Alton, IL are religiously affiliated (most commonly Catholic and Baptist).

Top Ranked Alton Private Schools (2025)

School
Location
Grades
Students
Marquette Catholic High School
(Catholic)
(1)
219 E 4th St
Alton, IL 62002
(618) 463-0580
Grades: 9-12
| 377 students
St. Mary School
(Catholic)
536 E 3rd St
Alton, IL 62002
(618) 465-8523
Grades: PK-8
| 337 students
Center For Children To Heal And Achieve (ccha)
Special Education School
1400 State St
Alton, IL 62002
(618) 465-3594
Grades: 2-12
| 46 students
2009 Seminary Street
Alton, IL 62002
(618) 462-1071
Grades: PK-12
| 86 students
New Vision Christian Academy
Alternative School (Pentecostal)
512 Spring St
Alton, IL 62002
(618) 979-9357
Grades: PK-8
| 11 students
St. Mary's School
(Catholic)
1015 Milton Rd
Alton, IL 62002
(618) 465-9719
Grades: 7-9
| 82 students
Toddle Towne Learning Center
Daycare / Preschool
3839 Humbert Road
Alton, IL 62002
(618) 462-8852
Grades: NS-PK
| 53 students
[+] Show Closed Private Schools in Alton, Illinois

Alton, Illinois Private Schools (Closed)

School
Location
Grades
Students
801 State St
Alton, IL 62002
(618) 465-8711
Grades: PK-8
| 79 students

Frequently Asked Questions

What are the top ranked private schools in Alton, IL?
The top ranked private schools in Alton, IL include Marquette Catholic High School and St. Mary School.
How many private schools are located in Alton?
7 private schools are located in Alton.
How diverse are private schools in Alton?
Alton private schools are approximately 27% minority students, which is lower than the Illinois private school average of 34%.
What percentage of students in Alton go to private school?
18% of all K-12 students in Alton are educated in private schools (compared to the IL state average of 12%).
What percentage of private schools are religiously affiliated in Alton?
71% of private schools in Alton are religiously affiliated (most commonly Catholic and Baptist).
Which private schools in Alton are often viewed compared to one another?

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