Private schools in St. Tammany Parish, LA
21 schools across Abita Springs, Covington, Mandeville, Slidell. About 6,330 students in all (2023-24).
| School | Grades | Students |
|---|---|---|
| Southern Magnolia Montessori School | PreK-6 | 32 |
| Archbishop Hannan High School | 8-12 | 694 |
| Christ Episcopal School | PreK-12 | 595 |
| Covington Montessori School | PreK-K | 3 |
| Kehoe-France Northshore | Not in the federal survey | |
| Lakeview Maria Montessori Preschool | PreK-K | 8 |
| Northlake Christian | K-12 | 922 |
| St. Pauls High School | 8-12 | 865 |
| St. Peter Catholic School | PreK-7 | 706 |
| St. Scholastica Academy | 8-12 | 538 |
| Cedarwood School | PreK-7 | 138 |
| Chesterton Academy of Divine Mercy | 8-9 | 9 |
| Mary Queen of Peace Catholic School | PreK-7 | 350 |
| Children's College | PreK-K | 5 |
| First Baptist Christian School | 1-12 | 278 |
| Harvest Christian Academy | 3-12 | 15 |
| Lake Castle Slidell Private School | PreK-8 | 336 |
| Lakeside Christian Academy | PreK-12 | 154 |
| Our Lady of Lourdes Elementary School | PreK-7 | 301 |
| Pope John Paul II Catholic High School | 8-12 | 357 |
| Slidell Christian Academy | PreK-6 | 24 |
St. Tammany Parish private schools at a glance
- Towns
- 4; the most in Covington (9), Slidell (8) and Mandeville (3)
- Among Louisiana parishes
- 4th most private schools of 51; 7% of the state’s 291
- Typical school
- 350 students (16 reporting)
- Smallest and largest
- Harvest Christian Academy, 15 students; Northlake Christian, 922 students
- Students per teacher
- 13.5 typical, 3 to 18.6 across 18 schools
- Programs
- 3 Montessori
- Co-ed or single-sex
- 1 all-girls and 1 all-boys
- Association members
- 11, most often the National Catholic Educational Association
- To a 4-year college
- 99% of graduates at the typical high school (8 reporting)
- State program
- Education savings account, $5,243 to $7,626 per student in 2025-26, by household income
How LA GATOR works - Public charter schools
- 1 in the county, tuition-free and not counted here
Charter schools in Louisiana
- Catholic9
- Christian, not Catholic6
- Nonsectarian5
- Not in federal survey1
- Pre-K (and up)12
- Elementary (K to 5)15
- Middle (6 to 8)17
- High school (9 to 12)10
- K to 12, one school3
- Under 503
- 50 to 1491
- 150 to 2992
- 300 to 5996
- 600 or more4
Lowest$5,250Middle$12,135Highest$13,250
Where these facts come from
- Grades, size, affiliation, co-ed, membership, college-going: NCES Private School Universe Survey 2023-24, downloaded September 20, 2026.
- Award and rules: Louisiana LA GATOR Scholarship, official page, read October 2, 2026.
- Tuition for 5 schools: each school’s own website, last read October 6, 2026.
- Public charter schools: NCES Common Core of Data, public school directory 2025-26 (preliminary), loaded October 8, 2026.
Neighboring counties
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