St. Mary of Gostyn Catholic School
Parish school · Grades Pre-K–8
Downers Grove, IL
440 Prairie Ave, Downers Grove, IL 60515
Overall grade: B
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- B+Class size
- B+Years serving families
- B+Diversity
What stands out
- One of 2 Catholic schools in Downers Grove
St. Mary of Gostyn Catholic School is a Catholic parish school in Downers Grove, Illinois, for students from pre-K through 8th grade. It has about 419 students and around 15 students per teacher. The school is part of the Diocese of Joliet. Students attend about 6.5 hours a day, 176 days a year.
At a glance
- Grades
- Grades Pre-K–8
- Students
- 419
- Teachers
- 28.5 (full-time equivalent)
- Students per teacher
- 14.7
- Boys and girls
- Coed · 195 girls, 224 boys
- Religious affiliation
- Catholic · Parish school
- Diocese
- Diocese of Joliet
- School day
- About 6.5 hours
- School year
- 176 days
- Library
- Yes
Reviews
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How it compares
- Larger than 91% 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 of Gostyn Catholic School
What grades does St. Mary of Gostyn Catholic School serve?
St. Mary of Gostyn Catholic School serves grades Pre-K–8.
How many students attend St. Mary of Gostyn Catholic School?
About 419 students, with 15 students per teacher, according to official records.
How much is tuition at St. Mary of Gostyn 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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