St. Mary's School in Alton, IL, serves 82 co–ed udents in grades 7 through 9 within a suburban community setting.
Founded in 1858, the Catholic–affiliated school employs 7 teachers for a udent–teacher ratio of 12:1.
The school offers 10 Advanced Placement (AP) courses and charges an annual tuition of $25,000.
Mary's enrollment reflects 7.3% udent diversity and the campus occupies 5 acres.
Among private schools in Illinois,. Mary's ranks in the top 20% for school hiory and resources based on founding date and endowment size.
Quick Facts (2026)
- Top-Ranked IL School
- Grades: 7-9
- Enrollment: 82 students
- Yearly Tuition: $25,000
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
Top Rankings
St. Mary's School ranks among the top 20% of private schools in Illinois for:
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades 7-9
Year Founded
1858
School Calendar
Campus Size
5 acres
Student Body
Total Students
82 students
Student Body Type
Co-ed
% Students of Color
7%
State avg.: 34%
Students by Grade
Academics and Faculty
Total Classroom Teachers
7 teachers
Student-Teacher Ratio
12:1
National avg.: 11:1
Number of AP/Advanced Courses
10 courses
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
$25,000
Application URL
Endowment Size
$50 million
School Notes
- School Motto: Truth and Honor
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
How much does St. Mary's School cost?
St. Mary's School's tuition is approximately $25,000 for private students.
What is St. Mary's School's ranking?
St. Mary's School ranks among the top 20% of private schools in Illinois for: Oldest founding date and Largest endowments.
When is the application deadline for St. Mary's School?
The application deadline for St. Mary's School is rolling (applications are reviewed as they are received year-round).
Related Schools
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People that viewed St. Mary's School also viewed these schools: Evangelical School and St. Ambrose Catholic School.
The nearest high school, elementary school and preschool to St. Mary's School is Mississippi Valley Christian School (1.2 miles away)
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Location
Miles
Quick Facts
Evangelical School
(Christian)
1212 W Homer M Adams Pkwy
Godfrey, IL 62035
(618) 466-1599
Godfrey, IL 62035
(618) 466-1599
2.7 miles
Gr: PK-8 | 317 students Avg. class size: 25 students Sports: 3 Tuition listed
St. Ambrose Catholic School
(Catholic)
822 W Homer Adams Pkwy
Godfrey, IL 62035
(618) 466-4216
Godfrey, IL 62035
(618) 466-4216
2.9 miles
Gr: PK-8 | 289 students
School
Location
Miles
Quick Facts
Evangelical School
(Christian)
1212 W Homer M Adams Pkwy
Godfrey, IL 62035
(618) 466-1599
Godfrey, IL 62035
(618) 466-1599
2.7 miles
Gr: PK-8 | 317 students Avg. class size: 25 students Sports: 3 Tuition listed
St. Ambrose Catholic School
(Catholic)
822 W Homer Adams Pkwy
Godfrey, IL 62035
(618) 466-4216
Godfrey, IL 62035
(618) 466-4216
2.9 miles
Gr: PK-8 | 289 students
School
Location
Miles
Quick Facts
Evangelical School
(Christian)
1212 W Homer M Adams Pkwy
Godfrey, IL 62035
(618) 466-1599
Godfrey, IL 62035
(618) 466-1599
2.7 miles
Gr: PK-8 | 317 students Avg. class size: 25 students Sports: 3 Tuition listed
St. Ambrose Catholic School
(Catholic)
822 W Homer Adams Pkwy
Godfrey, IL 62035
(618) 466-4216
Godfrey, IL 62035
(618) 466-4216
2.9 miles
Gr: PK-8 | 289 students
School
Location
Miles
Quick Facts
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
1.2 miles
Gr: PK-12 | 86 students Avg. class size: 10 students Sports: 3 | Extracurrculars: 2 Tuition & acceptance rate listed
Toddle Towne Learning Center
Daycare / Preschool
163 North Shamrock Avenue
East Alton, IL 62024
(618) 258-7444
East Alton, IL 62024
(618) 258-7444
1.4 miles
Gr: NS-PK | 75 students
New Vision Christian Academy
Alternative School (Pentecostal)
512 Spring St
Alton, IL 62002
(618) 979-9357
Alton, IL 62002
(618) 979-9357
2.1 miles
Gr: PK-8 | 11 students
St. Mary School
(Catholic)
536 E 3rd St
Alton, IL 62002
(618) 465-8523
Alton, IL 62002
(618) 465-8523
2.4 miles
Gr: PK-8 | 337 students Avg. class size: 15 students Tuition listed
Evangelical School
(Christian)
1212 W Homer M Adams Pkwy
Godfrey, IL 62035
(618) 466-1599
Godfrey, IL 62035
(618) 466-1599
2.7 miles
Gr: PK-8 | 317 students Avg. class size: 25 students Sports: 3 Tuition listed
School
Location
Miles
Quick Facts
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
1.2 miles
Gr: PK-12 | 86 students Avg. class size: 10 students Sports: 3 | Extracurrculars: 2 Tuition & acceptance rate listed
219 E 4th St
Alton, IL 62002
(618) 463-0580
Alton, IL 62002
(618) 463-0580
2.7 miles
Gr: 9-12 | 390 students Avg. class size: 20 students Sports: 14 | Extracurrculars: 13 Tuition & acceptance rate listed
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
3.4 miles
Gr: 2-12 | 46 students
Connect Christian School
(Baptist)
1417 Herbert
South Roxana, IL 62087
(618) 254-0188
South Roxana, IL 62087
(618) 254-0188
5.4 miles
Gr: PK-11 | 34 students Avg. class size: 8 students Sports: 1 Tuition listed
Word Of Life Christian Academy
(Pentecostal)
4870 Maryville Rd
Granite City, IL 62040
(618) 931-3744
Granite City, IL 62040
(618) 931-3744
10.3 miles
Gr: K-12 | 23 students
School
Location
Miles
Quick Facts
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
1.2 miles
Gr: PK-12 | 86 students Avg. class size: 10 students Sports: 3 | Extracurrculars: 2 Tuition & acceptance rate listed
New Vision Christian Academy
Alternative School (Pentecostal)
512 Spring St
Alton, IL 62002
(618) 979-9357
Alton, IL 62002
(618) 979-9357
2.1 miles
Gr: PK-8 | 11 students
St. Mary School
(Catholic)
536 E 3rd St
Alton, IL 62002
(618) 465-8523
Alton, IL 62002
(618) 465-8523
2.4 miles
Gr: PK-8 | 337 students Avg. class size: 15 students Tuition listed
Evangelical School
(Christian)
1212 W Homer M Adams Pkwy
Godfrey, IL 62035
(618) 466-1599
Godfrey, IL 62035
(618) 466-1599
2.7 miles
Gr: PK-8 | 317 students Avg. class size: 25 students Sports: 3 Tuition listed
St. Ambrose Catholic School
(Catholic)
822 W Homer Adams Pkwy
Godfrey, IL 62035
(618) 466-4216
Godfrey, IL 62035
(618) 466-4216
2.9 miles
Gr: PK-8 | 289 students
School
Location
Miles
Quick Facts
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
1.2 miles
Gr: PK-12 | 86 students Avg. class size: 10 students Sports: 3 | Extracurrculars: 2 Tuition & acceptance rate listed
Toddle Towne Learning Center
Daycare / Preschool
163 North Shamrock Avenue
East Alton, IL 62024
(618) 258-7444
East Alton, IL 62024
(618) 258-7444
1.4 miles
Gr: NS-PK | 75 students
New Vision Christian Academy
Alternative School (Pentecostal)
512 Spring St
Alton, IL 62002
(618) 979-9357
Alton, IL 62002
(618) 979-9357
2.1 miles
Gr: PK-8 | 11 students
St. Mary School
(Catholic)
536 E 3rd St
Alton, IL 62002
(618) 465-8523
Alton, IL 62002
(618) 465-8523
2.4 miles
Gr: PK-8 | 337 students Avg. class size: 15 students Tuition listed
Evangelical School
(Christian)
1212 W Homer M Adams Pkwy
Godfrey, IL 62035
(618) 466-1599
Godfrey, IL 62035
(618) 466-1599
2.7 miles
Gr: PK-8 | 317 students Avg. class size: 25 students Sports: 3 Tuition listed
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Miles
Quick Facts
East Elementary School
(Math: 17% | Reading: 18%)
Rank:
Rank:
4/
Bottom 50%10
1035 Washington Ave
Alton, IL 62002
(618) 463-2130
Alton, IL 62002
(618) 463-2130
1.1 miles
Gr: 3-5 | 415 students Student-Teacher Ratio: 13:1 Minority enrollment: 54%
Alton Middle School
(Math: 11% | Reading: 11%)
Rank:
Rank:
2/
Bottom 50%10
2200 College Ave
Alton, IL 62002
(618) 474-2200
Alton, IL 62002
(618) 474-2200
1.4 miles
Gr: 6-8 | 1,220 students Student-Teacher Ratio: 14:1 Minority enrollment: 49%
Mark Twain
Alternative School
(Math: ≤20% | Reading: ≤20% )
Rank:
Rank:
5/
Bottom 50%10
907 Milton Rd
Alton, IL 62002
(618) 463-2063
Alton, IL 62002
(618) 463-2063
1.5 miles
Gr: K-12
210 E Saint Louis Ave
East Alton, IL 62024
(618) 433-2001
East Alton, IL 62024
(618) 433-2001
1.8 miles
Gr: PK | 130 students Student-Teacher Ratio: 43:1 Minority enrollment: 22%
Ea/region Iii K-8 Clip Prg
Special Education School
(Math: <50% | Reading: <50% )
Rank:
Rank:
10/
Top 10%10
1000 3rd St
East Alton, IL 62024
(618) 462-1031
East Alton, IL 62024
(618) 462-1031
2.1 miles
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