Lake Castle Slidell Private School
59461 Thompson Rd, Slidell, LA 70460Open, per Google (checked Sep 20, 2026)
Key facts
- Tuition
- Not published
- Grades
- PreK-8
- Students (K-12)
- 336
- Students per teacher
- 15.8
- Affiliation
- Roman Catholic
- From Slidell center
- 3.2 miles
Can you use LA GATOR here?
Louisiana publishes no school list
- About the list
- How the LA GATOR list works
- Applying
- The 2026-27 window was short: March 1 to 16, 2026.
Source: LA GATOR official source.
What you would pay here
- Net cost
- Not worked out: no verified 2026-27 tuition yet. Check the school’s website
School facts
- Teachers
- 23
- Student body
- Coeducational
- Diocese
- Archdiocese of New Orleans, LA
- Boys and girls
- 57% boys, 43% girls
- Setting
- Suburb
- School facts, kindergarten to grade 12: U.S. Department of Education, NCES Private School Survey 2023-24, read September 20, 2026.
Where this comes from. Something wrong? Tell us and we will fix it.
Students and school year
Students by grade, 2023-24 (pre-K is not in the K-12 count)
- Largest grade
- Kindergarten (47)
- Smallest grade
- Grade 5 (26)
- Average a grade
- About 37
The school year
- Days in the school year
- 180
- Length of the school day
- 7 hours 30 minutes
- Hours of school a year
- about 1,350
- Kindergarten
- Full day, 5 days a week
- Classes, 2023-24
- In person
- Library or media center
- Yes
- Year, against Louisiana
- 3 days longer than the 177-day median of 273 schools we list
- School day, against Louisiana
- 25 minutes longer than the median of 7 hours 5 minutes (272 schools we list)
How it compares
- Students per teacher
- 15.8 here; median 11.5 at 128 LA elementary schools
- Size in St. Tammany Parish
- Larger than 8 of 16 other schools we list
- Grades, school year and student body: U.S. Department of Education, NCES Private School Survey 2023-24, read September 20, 2026.
- Comparisons: the private schools ChoiceFunded lists, as of this page’s last update.
Lake Castle Slidell Private School tuition, and what LA GATOR pays
- Published tuition
- No verified figure yet. Check the school’s website
Louisiana LA GATOR Scholarship Education savings account
- Award
- $5,243 to $7,626 per student in 2025-26, by household income
- How it varies
- These are the 2025-26 amounts; the state had not posted 2026-27 amounts when we checked. Families at or below 250% of the poverty level get the higher amount. Students with disabilities can receive up to $15,253 at or below 250% of the poverty level, and up to $12,870 above it.
Figures read from each program’s official pages, October 2, 2026. Sources and how to apply
What would you pay at Lake Castle Slidell Private School?
Use $0 or more.
Tuition and fees LA GATOR pays You pay per year Spread over 10 months
- Ask the school
- Its full-year tuition and required fees; whether it takes LA GATOR scholarship; its application deadline. More questions to ask
Lake Castle Slidell Private School admissions
- Deadline
- Not given on the admissions page we checked
Source: school website, checked October 6, 2026. Dates can change, so confirm them with the admissions office. Other schools' application deadlines.
Other private schools nearby
| School | Grades | Students | Miles |
|---|---|---|---|
| Children's College | PreK-K | 5 | 3 |
| Harvest Christian Academy | 3-12 | 15 | 3 |
| Lakeside Christian Academy | PreK-12 | 154 | 4 |
| First Baptist Christian School | 1-12 | 278 | 4 |
| Our Lady of Lourdes Elementary School | PreK-7 | 301 | 4 |
| Pope John Paul II Catholic High School | 8-12 | 357 | 6 |
| Slidell Christian Academy | PreK-6 | 24 | 6 |
Private schools
Keep looking
- All private schools near Slidell
- Catholic schools in Louisiana
- Private elementary schools in Louisiana
- Private middle schools in Louisiana
- Private schools with kindergarten in Louisiana
- Private schools with pre-K in Louisiana
- Private schools in St. Tammany Parish
- Louisiana LA GATOR Scholarship: amount and eligibility
No new LA GATOR application dates are posted yet. How LA GATOR works.
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