Lake Castle Slidell Private School in Slidell, LA enrolls 485 students in grades PK through 8 within a suburban community setting.
Founded in 1987, this nonsectarian private school operates with 34 teachers and a student–teacher ratio of 14:1.
The school offers a regular elementary and secondary academic program serving co–ed students in the Slidell area.
Approximately 19% of the student body represents students of color, reflecting some diversity in this suburban private school.
Summer school is available at this Slidell private school, providing additional academic opportunities beyond the regular school year.
Quick Facts (2026)
- Grades: Prekindergarten-8
- Enrollment: 485 students
- Application Deadline: None / Rolling
- Source: Verified school update
School Overview
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
ADD/ADHD Support
Yes
Year Founded
1987
Summer School Offered
Yes
School Calendar
Student Body
Total Students
485 students
Student Body Type
Co-ed
% Students of Color
19%
State avg.: 22%
Students by Grade
Academics and Faculty
Total Classroom Teachers
34 teachers
Student-Teacher Ratio
14:1
National avg.: 11:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
School Notes
- School Motto: Excellence in Education
Source: Verified school update
Frequently Asked Questions
When is the application deadline for Lake Castle Slidell Private School?
The application deadline for Lake Castle Slidell Private School is rolling (applications are reviewed as they are received year-round).
Related Schools
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People that viewed Lake Castle Slidell Private School also viewed these schools: First Baptist Christian School, St. Margaret Mary School, Pope John Paul Ii Catholic High School and Southern Magnolia Montessori School.
The nearest high school and elementary school to Lake Castle Slidell Private School is Lakeside Christian Academy (3.6 miles away)
The nearest preschool is Children's College (3.4 miles away)
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School
Location
Miles
Quick Facts
4141 Pontchartrain Drive
Slidell, LA 70458
(985) 643-3725
Slidell, LA 70458
(985) 643-3725
3.8 miles
Gr: 1-12 | 270 students Avg. class size: 19 students Sports: 9 | Extracurrculars: 5 Tuition & acceptance rate listed
St. Margaret Mary School ![St. Margaret Mary School Photo]( "St. Margaret Mary School Photo")
(Catholic)
1050 Robert Blvd A
Slidell, LA 70458
(985) 643-4612
Slidell, LA 70458
(985) 643-4612
4.1 miles
Gr: PK-7 | 428 students Avg. class size: 20 students Sports: 7 | Extracurrculars: 11
1901 Jaguar Dr
Slidell, LA 70461
(985) 649-0914
Slidell, LA 70461
(985) 649-0914
5.7 miles
Gr: 8-12 | 323 students Avg. class size: 18 students Sports: 14 | Extracurrculars: 22 Tuition & acceptance rate listed
Southern Magnolia Montessori School
Montessori School
72047 Live Oak St
Abita Springs, LA 70420
(985) 893-5900
Abita Springs, LA 70420
(985) 893-5900
17.7 miles
Gr: PK-7 | 70 students Tuition listed
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