St. Mary's Catholic School
Parish school · Grades Pre-K–8
Chester, IL
835 Swanwick St, Chester, IL 62233
Overall grade: A
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A+Class size
- A-Years serving families
- BDiversity
What stands out
- Smaller classes than 90% of Catholic schools in Illinois
- Serving families in Chester since at least 2011
In Chester, Illinois, St. Mary's Catholic School is a Catholic parish school for students from pre-K through 8th grade. About 60 students attend, with roughly 8 students per teacher, smaller classes than 90% of Catholic elementary schools in Illinois. It has been listed in official private school records since 2011–12. The school is part of the Diocese of Belleville. The school day runs about 7 hours, 176 days a year.
At a glance
- Grades
- Grades Pre-K–8
- Students
- 60
- Teachers
- 7.8 (full-time equivalent)
- Students per teacher
- 7.7
- Boys and girls
- Coed · 30 girls, 30 boys
- Religious affiliation
- Catholic · Parish school
- Diocese
- Diocese of Belleville
- School day
- About 7 hours
- School year
- 176 days
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 90% of Catholic elementary schools in Illinois (8 students per teacher).
- A smaller school: fewer students than 94% of Catholic elementary schools in Illinois.
- Compared with 285 Catholic elementary schools in Illinois.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Member of
- National Catholic Educational Association
Questions to ask on a tour
- What is tuition, and what does it include (books, fees, uniforms, trips)?
- Do you offer financial aid, sibling discounts or payment plans?
- Do you accept ESA, voucher or tax-credit scholarship funds?
- How big are classes in my child's grade?
- What support is there for students who need extra help or more challenge?
- Is the school accredited, and by whom?
- What do a typical day and a typical week look like?
- How does the school communicate with families?
Questions about St. Mary's Catholic School
What grades does St. Mary's Catholic School serve?
St. Mary's Catholic School serves grades Pre-K–8.
How many students attend St. Mary's Catholic School?
About 60 students, with 8 students per teacher, according to official records.
How much is tuition at St. Mary's Catholic School?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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