#1 Most Diverse Private Schools in Slidell, LA
Lakeside Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 36% of students
Slidell, LA
A+Overall grade154 students6 students per teacher
2026 lists
Most Diverse Private Schools in Slidell, LA
Private schools in Slidell, LA with the most varied mix of students. Top 5 of 5 schools.
#2 Most Diverse Private Schools in Slidell, LA
Our Lady of Lourdes Elementary School
Diocesan school · Grades Pre-K–7
Largest group: 70% of students
Slidell, LA
BOverall grade301 students15 students per teacher
#3 Most Diverse Private Schools in Slidell, LA
Lake Castle Slidell Private School
Independent Catholic school · Grades Pre-K–8
Largest group: 71% of students
Slidell, LA
B-Overall grade336 students16 students per teacher
#4 Most Diverse Private Schools in Slidell, LA
First Baptist Christian School
Baptist school · Grades 1–12
Largest group: 77% of students
Slidell, LA
B-Overall grade278 students15 students per teacher
#5 Most Diverse Private Schools in Slidell, LA
Pope John Paul II Catholic High School
Diocesan school · Grades 8–12
Largest group: 81% of students
Slidell, LA
B+Overall grade357 students14 students per teacher
From official public records, updated October 2026.