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The Agnes Irwin School

Bryn Mawr · PA · Private independent · K-12 combined

Private
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📖19 AP courses 📝SAT 1410 avg 🏅5 National Merit Semifinalists

📋 At a glance

Programs & features
  • 📚 19 AP courses offered (school profile)
  • 🏆 5 National Merit Semifinalists last year
Academic signals
  • 📝 SAT avg 1410 (25-75: 1350–1480)
  • 📝 ACT avg 31.5 (25-75: 30–33)
  • 📚 AP exam pass rate 86.0% (avg score 4.1)

Composed from federal CRDC offerings, EDFacts ACGR, the school's own published profile, and other public data. Full breakdowns below.

💡

How The Agnes Irwin School compares for families

Among the academically strongest private schools in our database.

  • NationallySAT mean 1410 (≈ top 4% of US test-takers) · ACT mean 31.5 (≈ top 7%) · 86% AP pass rate (US average: ~60%) · 5 National Merit Semifinalists last year (NMSF is the top 1% of US PSAT scorers).
  • LocallyPA students outperform the US average on NAEP 8th-grade math (+4 points).
  • vs Similar SchoolsThe closest comparables nearby: Hill Top Preparatory School, Radnor SHS, Sacred Heart Academy Bryn Mawr and 5 more. See the sidebar to compare side-by-side.

For Parents

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Enrollment trend & projection

Total enrollment went from 594 in 2018 to 573 in 2022 — over 4 years.
-3.5%
Why only 3 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.

For a more current snapshot, see The Agnes Irwin School's own published school profile (as of 2024-25): www.agnesirwin.org/admission/school-profile ↗

If the recent trend holds…

At its recent rate of -0.9%/year, projecting from 2022's 573 students:

2023
568
2025
558
2027
548

≈ 25 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 25 students projected to be lost by 2027 represent ≈ $400,000/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
Hill Top Preparatory School
Bryn Mawr
Private 0.9 76
Radnor SHS
Radnor
Public 0.9 1,146 -1.6%
Sacred Heart Academy Bryn Mawr
Bryn Mawr
Private 1.1 200 -23.4%
The Grayson School
Radnor
Private 1.2 138 +165.4%
Archbishop John Carroll High School
Radnor
Private 1.2 674
St Katherine Day School -Upper
Wynnewood
Private 1.2 74
Archbishop Carroll High School
Malvern
Private 1.2 673
Academy-Notre Dame De Namur
Villanova
Private 1.3 551 +2.0%

For Parents

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