POST OAK SCHOOL
The Post Oak School is a diverse and welcoming Montessori community that honors and guides lifelong learners as they create their own bold pathways in leading purposeful lives.
About POST OAK SCHOOL
The Post Oak School is an independent Montessori K–12 school with campuses in Bellaire (Bissonnet Campus: early childhood through elementary) and Houston’s Museum District (middle and high school). The school serves infants through high school and emphasizes Montessori pedagogy, self-direction, collaboration, and experiential learning. In recent years Post Oak has pursued a multi-year strategic plan (2023–2028) focused on financial sustainability, program quality, and campus improvements while maintaining accreditation and a global-minded curriculum that includes an authorized International Baccalaureate Diploma Years Programme at the upper school.
Notable achievements
Stable enrollment and diverse community
Post Oak enrolls roughly 480 students across its two campuses, with families representing dozens of countries and a student body described on the school site as culturally diverse; the school reports that a meaningful share of families receive financial aid and that middle school students complete substantial community-service hours each year.
Strong financial position (recent fiscal years)
Form 990 data reported in recent filings shows program-driven revenue in the mid-to-high millions and net assets in the tens of millions, reflecting multi-year financial stability that supports operations, staffing, and capital maintenance.
Sustained philanthropy and campus investment
The Post Oak Fund (annual giving) regularly meets sizable goals to support financial aid, professional development, and campus projects; recent fundraising and designated donor support have funded safety and infrastructure work, HVAC and roof repairs, playground/enrichment improvements, and campus amenities.
At a glance
- Total assets
- $35.8M
- Annual revenue
- $17.0M
- Tax status
- 501(c)(3)School
- EIN
- 74-1486232
- Location
- Bellaire, TX
- Website
- www.postoakschool.org
- On Mahalo since
- September 2026
Financial figures from the IRS Business Master File, the IRS’s registry of tax-exempt organizations.
Recognition
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