Holland Hall Photo - Fall in full bloom on our 168 acre campus.

Top 3 Best Oklahoma Private High Schools Belonging to Independent Schools Association of the South West (ISAS) (2024-25)

For the 2024-25 school year, there are 4 private high schools belonging to Independent Schools Association of the South West (ISAS) serving 3,652 students in Oklahoma. You can also find more schools membership associations in Oklahoma.
The top ranked private high schools belonging to Independent Schools Association of the South West (ISAS) in Oklahoma include Holland Hall, Casady School, and Heritage Hall.
The average acceptance rate is 58%, which is lower than the Oklahoma private high school average acceptance rate of 82%.
50% of private high schools belonging to Independent Schools Association of the South West (ISAS) in Oklahoma are religiously affiliated (most commonly Episcopal).

Top Ranked Private High Schools Belonging to Independent Schools Association of the South West (ISAS) in Oklahoma (2024-25)

School
Location
Grades
Students
Casady School
Casady School Photo - Casady School includes four divisions: Primary for Pre-K, Lower for grades 1-4, Middle for grades 5-8, and Upper for grades 9-12.
(Episcopal)
9500 N Pennsylvania Ave
Oklahoma City, OK 73120
(405) 749-3200
Grades: PK-12
| 1,049 students
Heritage Hall
Heritage Hall Photo
1800 NW 122nd Street
Oklahoma City, OK 73120
(405) 936-3009
Grades: PK-12
| 955 students
Holland Hall
Holland Hall Photo - More space to learn and grow. Here our Primary School students make some campfire S'Mores during an outdoor unit. S'More?! How can I have more when I haven't had any?! *Bonus points for knowing the quote*
(Episcopal)
5666 E 81st
Tulsa, OK 74137
(918) 481-1111
Grades: NS-12
| 1,032 students
2433 W 61st Street
Tulsa, OK 74132
(918) 446-3553
Grades: NS-12
| 616 students

Recent Articles

Early Childhood Education Approaches: A Guide for Parents of 1 and 2 Year Olds
Early Childhood Education Approaches: A Guide for Parents of 1 and 2 Year Olds
In this article we explore three popular approaches to early childhood education: Montessori, Reggio Emilia, and Waldorf. It provides parents of toddlers with essential information about each method, helping them make informed decisions about their child's early education.
Making the Right Choice: A Parent's Guide to Private School Selection
Making the Right Choice: A Parent's Guide to Private School Selection
We explore the reasons to consider private school education, compares boarding and day school options, and outlines essential factors in choosing the right school. It provides parents with valuable insights to make informed decisions about their child's education, drawing from real-world scenarios and expert advice.
Navigating Private School Finances: A Parent's Guide
Navigating Private School Finances: A Parent's Guide
This comprehensive guide explores the intricacies of private school tuition and financing options. Divided into three chapters, it covers understanding private school tuition, various payment methods, and seven specific options for managing educational expenses. The article aims to provide parents and guardians with valuable insights and practical strategies to make private education more accessible and affordable.