Holy Trinity Catholic School
Diocesan school · Grades Pre-K–6
Bay St. Louis, MS
301 S Second St, Bay St. Louis, MS 39520
Overall grade: B-
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- B-Class size
- B+Years serving families
- BDiversity
What stands out
- Serving families in Bay St. Louis since at least 2011
In Bay St. Louis, Mississippi, Holy Trinity Catholic School is a Catholic diocesan school for students from pre-K through 6th grade. About 222 students attend, with roughly 15 students per teacher. The school is part of the Diocese of Biloxi. The school day runs about 7 hours, 180 days a year. Mississippi has programs that can help pay tuition; ask the school whether it takes part.
At a glance
- Grades
- Grades Pre-K–6
- Students
- 222
- Teachers
- 14.9 (full-time equivalent)
- Students per teacher
- 14.9
- Boys and girls
- Coed · 84 girls, 138 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of Biloxi
- School day
- About 7 hours
- School year
- 180 days
- Library
- Yes
Reviews
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How it compares
- Larger than 85% of Catholic elementary schools in Mississippi.
- Compared with 13 Catholic elementary schools in Mississippi.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Help paying tuition in Mississippi
These state programs can help pay private school tuition. Only participating schools can accept them, so ask Holy Trinity Catholic School whether it takes part.
- Education Scholarship Account (students with disabilities) · Education savings account
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 Holy Trinity Catholic School
What grades does Holy Trinity Catholic School serve?
Holy Trinity Catholic School serves grades Pre-K–6.
How many students attend Holy Trinity Catholic School?
About 222 students, with 15 students per teacher, according to official records.
How much is tuition at Holy Trinity Catholic School?
Call the school to ask about tuition, financial aid and payment plans. Mississippi has programs that can help pay private school tuition; ask whether the school takes part.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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