Best Oklahoma Private Schools Belonging to Independent Schools Association of the South West (ISAS) (2025-26)
For the 2025-26 school year, there are 5 private schools belonging to Independent Schools Association of the South West (ISAS) serving 4,250 students in Oklahoma. You can also find more schools membership associations in Oklahoma.
The top ranked private schools belonging to Independent Schools Association of the South West (ISAS) in Oklahoma include Westminster School, Heritage Hall, and Holland Hall.
40% of private schools belonging to Independent Schools Association of the South West (ISAS) in Oklahoma are religiously affiliated (most commonly Episcopal).
Learn how sliding-scale and income-based tuition models work and whether they are right for your family. Compare costs, eligibility, and school options.
