The average private school endowment in Oklahoma is $88.3M (2026).
The private school in Oklahoma with the highest endowment is Christian Heritage Academy, with a endowment of $500M.
Endowment Range: $2M
$500M
Avg. Endowment: $88.3M
Average 草榴社区 School endowment in Oklahoma (2026)
School
Endowment
Grades
Location
Rank: #11.
Endowment: $500 M
Grades: PK-12
4400 SE 27th STREET
Oklahoma City, OK 73115
(405) 672-1787
Oklahoma City, OK 73115
(405) 672-1787
Rank: #22.
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*]( "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)
Endowment: $109 M
Grades: NS-12
5666 E 81st
Tulsa, OK 74137
(918) 481-1111
Tulsa, OK 74137
(918) 481-1111
Rank: #33.
Okc Heartland Montessori School - Future Educ. Llc ![Okc Heartland Montessori School - Future Educ. Llc Photo - The Montessori method teaches independence and doing for oneself.]( "Okc Heartland Montessori School - Future Educ. Llc Photo - The Montessori method teaches independence and doing for oneself.")
Montessori School
Endowment: $50 M
Grades: PK-K
6120 N. Drexel Blvd.
Oklahoma City, OK 73112
(405) 463-5523
Oklahoma City, OK 73112
(405) 463-5523
Rank: #44.
Endowment: $25 M
Grades: 9-12
3905 S Hudson Avenue
Tulsa, OK 74135
(918) 609-7153
Tulsa, OK 74135
(918) 609-7153
Rank: #55.
Endowment: $12 M
Grades: PK-8
2206 S Lewis Ave
Tulsa, OK 74114
(918) 742-3364
Tulsa, OK 74114
(918) 742-3364
Rank: #66.
Mount Saint Mary Catholic High School
(Catholic)
Endowment: $6 M
Grades: 9-12
2801 S Shartel Ave
Oklahoma City, OK 73109
(405) 631-8865
Oklahoma City, OK 73109
(405) 631-8865
Rank: #77.
Endowment: $2 M
Grades: PK-12
6363 S. Trenton Avenue
Tulsa, OK 74136
(918) 745-9868
Tulsa, OK 74136
(918) 745-9868
Rank: #88.
Mizel Jewish Community Day School ![Mizel Jewish Community Day School Photo]( "Mizel Jewish Community Day School Photo")
(Jewish)
Endowment: $2.5 M
Grades: NS-5
2021 E 71st St
Tulsa, OK 74136
(918) 494-0953
Tulsa, OK 74136
(918) 494-0953
Frequently Asked Questions
What is the Oklahoma average private schools endowment?
The Oklahoma average private schools endowment is $88.3M for 2026.
What are the private schools with the highest endowment in Oklahoma?
The top-ranked private schools in Oklahoma include Christian Heritage Academy, Holland Hall and Okc Heartland Montessori School - Future Educ. Llc.
What is private high school and private elementary school with the highest endowment in Oklahoma?
The private high school with the highest endowment in Oklahoma is Christian Heritage Academy, with a value of $500.0M. The private elementary school with the highest endowment is Christian Heritage Academy, with a value of $500.0M.
Recent Articles
The Social Fit Interview: Questions to Ask Students, Not Admissions
Discover how talking with current students can reveal a private school's true culture and help families assess social fit before enrolling.
AI Companions and Student Well-Being: What Parents Should Ask
Learn how AI companions may affect student well-being and discover the key questions parents should ask before embracing this emerging technology.
Is a Phone-Free 草榴社区 School Right for Your Child?
Explore the benefits, challenges, and key considerations of choosing a phone-free private school for your child in 2026.
