Private School Review - Established 2003

Alton Private High Schools

For the 2026-27 school year, there are 4 private high schools serving 604 students in Alton, IL.
The average acceptance rate is 99%, which is higher than the Illinois private high school average acceptance rate of 86%.
75% of private high schools in Alton, IL are religiously affiliated (most commonly Catholic and Baptist).

Quick Facts (26-27)

Quick Facts (26-27)

Top Ranked Alton Private High Schools (2026-27)

Map of Center For Children To Heal And Achieve (ccha)
Center For Children To Heal And Achieve (ccha)
Gr: 2-12 | 46 students
Special Education School
1400 State St
Alton, IL 62002
(618) 465-3594
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Map of Marquette Catholic High School
Marquette Catholic High School
Gr: 9-12 | 390 students
Avg. class size: 20 students
Sports: 14 | Extracurriculars: 13
Catholic
219 E 4th St
Alton, IL 62002
(618) 463-0580
(1)
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Map of St. Mary's School
St. Mary's School
Gr: 7-9 | 82 students
Catholic
1015 Milton Rd
Alton, IL 62002
(618) 465-9719
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Mississippi Valley Christian School Photo
Mississippi Valley Christian School
Gr: PK-12 | 86 students
Avg. class size: 10 students
Sports: 3 | Extracurriculars: 2
Baptist
2009 Seminary Street
Alton, IL 62002
(618) 462-1071
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[+] Show Closed Private Schools in Alton, Illinois

Alton, Illinois Private Schools (Closed)

Map of Ss Peter & Paul Elementary School
Ss Peter & Paul Elementary School
Gr: PK-8 | 79 students
Catholic
801 State St
Alton, IL 62002
(618) 465-8711
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Alton, IL Private School Trends

4
Private Schools
604
Students
$6,509
Avg. Tuition
15
Avg. Class Size
14%
Students of Color
11:1
Student-Teacher Ratio
Download town snapshot: CSV | XML | JSON Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission.
Enrollment & Diversity
Category
This Town (Alton)
This State (IL)
# Schools
4 Schools
388 Schools
# Students
604 Students
89,919 Students
% Students of Color
14%
35%
0.30
0.62
Show more data/charts: racial breakdown
# American Indian Students
1 Student
298 Students
% American Indian Students
<1%
<1%
# Asian Students
7 Students
5,624 Students
% Asian Students
1%
6%
# Hispanic Students
7 Students
10,088 Students
% Hispanic Students
1%
11%
# Black Students
63 Students
9,667 Students
% Black Students
10%
11%
# White Students
531 Students
52,461 Students
% White Students
83%
58%
# Hawaiian Students
0 Students
105 Students
% Hawaiian Students
0%
<1%
# Others Students
28 Students
12,210 Students
% of Others Students
5%
14%
All Ethnic Groups
Academics
# Teachers
56 Teachers
7,568 Teachers
Average Student-Teacher Ratio
11:1
11:1
% Average Faculty w/Advanced Degree
32%
57%
Average Class Size
15 students
15 students
Average Number of AP Courses
8 courses
12 courses
Average ACT score
22
(Out of 36)
25
Tuition & Aid
Average Yearly Tuition Cost
$6,509
$14,271
Average Summer Program Cost
$150
$1,192
Average % on Financial Aid
56%
40%
Admissions & Athletics
Average Acceptance Rate
99%
86%
Average Number of Extracurriculars
8 extracurriculars
14 extracurriculars
Average Number of Sports
9 sports
9 sports

Frequently Asked Questions

What are the top ranked private high schools in Alton, IL?
The top ranked private high schools in Alton, IL include Marquette Catholic High School, St. Mary's School, and Center For Children To Heal And Achieve (ccha).
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?
75% of private high schools in Alton are religiously affiliated (most commonly Catholic and Baptist).
Which private high schools in Alton are often viewed compared to one another?

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