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
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
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
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
School
Location
Miles
Quick Facts
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
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
School
Location
Miles
Quick Facts
Children's College
Daycare / Preschool
967 Carnation St
Slidell, LA 70460
(985) 649-7618
Slidell, LA 70460
(985) 649-7618
3.4 miles
Gr: PK-K | 10 students
3401 Ponchartrain Dr
Slidell, LA 70458
(985) 781-3175
Slidell, LA 70458
(985) 781-3175
3.6 miles
Gr: PK-12 | 100 students
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
Our Lady Of Lourdes Elementary School ![Our Lady Of Lourdes Elementary School Photo - 3rd Quarter Principal's Honor Roll recipients with Mr. Kiefer, following the Honor Roll Breakfast. March 2011]( "Our Lady Of Lourdes Elementary School Photo - 3rd Quarter Principal's Honor Roll recipients with Mr. Kiefer, following the Honor Roll Breakfast. March 2011")
(Catholic)
345 Westchester Boulevard
Slidell, LA 70458
(985) 643-3230
Slidell, LA 70458
(985) 643-3230
3.9 miles
Gr: PK-7 | 436 students Avg. class size: 26 students Tuition & acceptance rate listed
37291 W Pinehill Dr
Slidell, LA 70460
(985) 640-0601
Slidell, LA 70460
(985) 640-0601
4 miles
Gr: 1-12 | 13 students
School
Location
Miles
Quick Facts
3401 Ponchartrain Dr
Slidell, LA 70458
(985) 781-3175
Slidell, LA 70458
(985) 781-3175
3.6 miles
Gr: PK-12 | 100 students
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
37291 W Pinehill Dr
Slidell, LA 70460
(985) 640-0601
Slidell, LA 70460
(985) 640-0601
4 miles
Gr: 1-12 | 13 students
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
70104 Wolverine Drive
Covington, LA 70433
(985) 635-0508
Covington, LA 70433
(985) 635-0508
18.9 miles
Gr: PK-12 | 1,049 students Avg. class size: 18 students Sports: 14 | Extracurrculars: 8 Tuition & acceptance rate listed
School
Location
Miles
Quick Facts
3401 Ponchartrain Dr
Slidell, LA 70458
(985) 781-3175
Slidell, LA 70458
(985) 781-3175
3.6 miles
Gr: PK-12 | 100 students
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
Our Lady Of Lourdes Elementary School ![Our Lady Of Lourdes Elementary School Photo - 3rd Quarter Principal's Honor Roll recipients with Mr. Kiefer, following the Honor Roll Breakfast. March 2011]( "Our Lady Of Lourdes Elementary School Photo - 3rd Quarter Principal's Honor Roll recipients with Mr. Kiefer, following the Honor Roll Breakfast. March 2011")
(Catholic)
345 Westchester Boulevard
Slidell, LA 70458
(985) 643-3230
Slidell, LA 70458
(985) 643-3230
3.9 miles
Gr: PK-7 | 436 students Avg. class size: 26 students Tuition & acceptance rate listed
37291 W Pinehill Dr
Slidell, LA 70460
(985) 640-0601
Slidell, LA 70460
(985) 640-0601
4 miles
Gr: 1-12 | 13 students
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
School
Location
Miles
Quick Facts
Children's College
Daycare / Preschool
967 Carnation St
Slidell, LA 70460
(985) 649-7618
Slidell, LA 70460
(985) 649-7618
3.4 miles
Gr: PK-K | 10 students
3401 Ponchartrain Dr
Slidell, LA 70458
(985) 781-3175
Slidell, LA 70458
(985) 781-3175
3.6 miles
Gr: PK-12 | 100 students
Our Lady Of Lourdes Elementary School ![Our Lady Of Lourdes Elementary School Photo - 3rd Quarter Principal's Honor Roll recipients with Mr. Kiefer, following the Honor Roll Breakfast. March 2011]( "Our Lady Of Lourdes Elementary School Photo - 3rd Quarter Principal's Honor Roll recipients with Mr. Kiefer, following the Honor Roll Breakfast. March 2011")
(Catholic)
345 Westchester Boulevard
Slidell, LA 70458
(985) 643-3230
Slidell, LA 70458
(985) 643-3230
3.9 miles
Gr: PK-7 | 436 students Avg. class size: 26 students Tuition & acceptance rate listed
1040 Joe Buccaran Dr.
Slidell, LA 70458
(985) 643-3084
Slidell, LA 70458
(985) 643-3084
4 miles
Gr: NS-PK
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
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Miles
Quick Facts
L.p. Monteleone Junior High School
(Math: 52% | Reading: 69%)
Rank:
Rank:
10/
Top 10%10
63000 Blue Marlin Drive
Mandeville, LA 70448
(985) 951-8088
Mandeville, LA 70448
(985) 951-8088
10.7 miles
Gr: 7-8 | 349 students Student-Teacher Ratio: 9:1 Minority enrollment: 36%
Gayle Sloan Middle School
(Math: 65% | Reading: 69%)
Rank:
Rank:
10/
Top 10%10
2525 Soult Street
Mandeville, LA 70448
(985) 626-8778
Mandeville, LA 70448
(985) 626-8778
13.2 miles
Gr: 4-6 | 502 students Student-Teacher Ratio: 13:1 Minority enrollment: 20%
Magnolia Trace Elementary School
(Math: 60-64% | Reading: 65-69%)
Rank:
Rank:
10/
Top 10%10
1405 Highway 1088
Mandeville, LA 70448
(985) 626-8238
Mandeville, LA 70448
(985) 626-8238
13.7 miles
Gr: 2-3 | 355 students Student-Teacher Ratio: 11:1 Minority enrollment: 25%
Woodlake Elementary School
(Math: 60-64% | Reading: 65-69%)
Rank:
Rank:
10/
Top 10%10
1620 Livingston Street
Mandeville, LA 70448
(985) 626-8842
Mandeville, LA 70448
(985) 626-8842
13.9 miles
Gr: PK-3 | 442 students Student-Teacher Ratio: 10:1 Minority enrollment: 28%
Lake Harbor Middle School
(Math: 70% | Reading: 70%)
Rank:
Rank:
10/
Top 5%10
1700 Viola Street
Mandeville, LA 70448
(985) 674-4440
Mandeville, LA 70448
(985) 674-4440
14 miles
Gr: 4-6 | 582 students Student-Teacher Ratio: 13:1 Minority enrollment: 23%
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