Undercroft Montessori School
Tulsa, Oklahoma 74135-5604
How it compares in Tulsa
Undercroft Montessori School is one of 7 Montessori schools in Tulsa, and one of 3 with full AMS or AMI accreditation. Tulsa also has 3 public, tuition-free Montessori options.
Visit & contact
- Address
- 3745 S Hudson Ave
Tulsa, OK 74135-5604 - Phone
- (918) 622-2890
- Website
- undercroft.org ↗
Facts & figures
From government filings and independent surveys — not the school's own marketing.
- Student-teacher ratio
9.3 : 1
234 students · 25.1 full-time-equivalent teachers
U.S. Dept. of Education private school survey, 2021–22
- School day
6.5 hours/day · 169 days/year
U.S. Dept. of Education private school survey, 2021–22
- Ownership
501(c)(3) nonprofit since 2025
$2.3M revenue (FY2018) · 19 years of IRS filings
- Age levels
Primary · Lower Elementary · Upper Elementary · Secondary
Programs, tuition & schedule
Quoted from undercroft.org."Our students are diverse in interest, personality and learning style. Our approach supports the development of individual capacities and our outcomes are consistent. Our students are well prepared academically and demonstrate creativity, confidence, competence and, most importantly, they love to learn."
Programs offered
- Early Childhood — Age 3-6
- Lower Elementary — 1st-3rd Grade
- Upper Elementary — 4th-6th Grade
- Middle School — 7th-8th Grade
- Before & After School Programs
Source: school's Classes 2 page ↗
Schedule
Extended-day / aftercare available.
Some fields above are blank because they weren't published on the school's site. Call or email the school for tuition, admissions, and other details not listed here.
How to apply
Quoted from undercroft.org.- Request a tour
- Apply online
- Complete enrollment
Source: school's Admissions page ↗
About Undercroft Montessori School
Undercroft Montessori School is a Montessori school (private) in Tulsa, Oklahoma serving ages 3 - 14 years — AMS Accredited. Our students are diverse in interest, personality and learning style. Our approach supports the development of individual capacities and our outcomes are consistent. Our students are well prepared academically and demonstrate creativity, confidence, competence and, most importantly, they love to learn.
Where is Undercroft Montessori School located? ⌃
3745 S Hudson Ave, Tulsa, OK 74135-5604
What is the phone number for Undercroft Montessori School? ⌃
Undercroft Montessori School can be reached at (918) 622-2890.
Is Undercroft Montessori School accredited? ⌃
Undercroft Montessori School lists the following accreditations or affiliations on its website: AMS (accredited).
How do you apply to Undercroft Montessori School? ⌃
Undercroft Montessori School's admissions process: Request a tour; Apply online; Complete enrollment.
What ages does Undercroft Montessori School serve? ⌃
Undercroft Montessori School serves children aged 3 - 14 years.
What is the website for Undercroft Montessori School? ⌃
The official website is undercroft.org.