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Castilleja School

Palo Alto · CA · Private independent · K-12 combined

Private
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📋 At a glance

Programs & features
  • Program details not reported to CRDC
Academic signals
  • Academic signals not yet ingested for this school

Composed from federal CRDC offerings, EDFacts ACGR, and other public data. Full breakdowns below.

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How Castilleja School compares for families

What families should know about Castilleja School.

  • LocallyCA trails the US average on NAEP 8th-grade math (−4 points). Stronger local schools matter even more.
  • vs Similar SchoolsThe closest comparables nearby: Palo Alto High, Living Wisdom School Of Palo Alto, Packard Children's Hospital/Stanford and 5 more. See the sidebar to compare side-by-side.

For Parents

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Enrollment trend & projection

Total enrollment went from 430 in 2020 to 422 in 2022 — over 2 years.
-1.9%
Why only 2 data points?

Private school enrollment comes from the NCES Private School Universe Survey (PSS), which is collected every other year — not annually like public-school data. The most recent published collection is 2021–22; NCES targeted spring 2026 for the 2023–24 release — we'll load it as soon as it's published.

If the recent trend holds…

At its recent rate of -0.9%/year, projecting from 2022's 422 students:

2023
418
2025
410
2027
403

≈ 19 fewer students by 2027 — a real revenue/relevance risk worth getting ahead of.

An extrapolation of the recent trajectory, not a forecast of the school's plans; ignores one-off shocks.

Revenue at risk

At tuition per student, the 19 students projected to be lost by 2027 represent ≈ $304,000/year in tuition at risk.

Tuition is an editable estimate (PSS doesn't publish tuition) — set it to your school's figure.

Nearby high schools — the local competition

The closest high schools families here also consider, and where their enrollment is heading.

SchoolTypeMilesHS enrollmentTrend
Palo Alto High
Palo Alto
Public 0.3 1,891 -5.9%
Living Wisdom School Of Palo Alto
Palo Alto
Private 0.9 72 -1.4%
Packard Children's Hospital/Stanford
Palo Alto
Public 1.3 6
Silicon Valley International School
Palo Alto
Private 1.7 585 +701.4%
Fusion Academy - Palo Alto
Palo Alto
Private 1.7 102 +104.0%
Oxford Day Academy
East Palo Alto
Public · charter 1.9 108 +8.0%
Hope Technology School
Palo Alto
Private 1.9 78 -14.3%
East Palo Alto Academy
East Palo Alto
Public · charter 2.0 278 -19.0%

For Parents

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