St. Thomas the Apostle School
Diocesan school · Grades Pre-K–8
Peoria Heights, IL
4229 N Monroe Ave, Peoria Heights, IL 61616
Overall grade: A+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A-Class size
- A-Years serving families
- ADiversity
What stands out
- Serving families in Peoria Heights since at least 2011
In Peoria Heights, Illinois, St. Thomas the Apostle School is a Catholic diocesan school for students from pre-K through 8th grade. About 213 students attend, with roughly 12 students per teacher. It has been listed in official private school records since 2011–12. The school is part of the Diocese of Peoria. The school day runs about 6.5 hours, 176 days a year.
At a glance
- Grades
- Grades Pre-K–8
- Students
- 213
- Teachers
- 18 (full-time equivalent)
- Students per teacher
- 11.8
- Boys and girls
- Coed · 106 girls, 107 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of Peoria
- School day
- About 6.5 hours
- School year
- 176 days
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 56% of Catholic elementary schools in Illinois (12 students per teacher).
- Larger than 67% 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. Thomas the Apostle School
What grades does St. Thomas the Apostle School serve?
St. Thomas the Apostle School serves grades Pre-K–8.
How many students attend St. Thomas the Apostle School?
About 213 students, with 12 students per teacher, according to official records.
How much is tuition at St. Thomas the Apostle 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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