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St John The Baptist Diocesan High School

West Islip · NY · Catholic religious-affiliated

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 St John The Baptist Diocesan High School compares for families

What families should know about St John The Baptist Diocesan High School.

  • LocallyNY sits right at the US average on NAEP 8th-grade math — local school quality will set your kid apart.
  • vs Similar SchoolsThe closest comparables nearby: WEST ISLIP SENIOR HIGH SCHOOL, BABYLON JUNIOR-SENIOR HIGH SCHOOL, NORTH BABYLON HIGH SCHOOL and 5 more. See the sidebar to compare side-by-side.
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Enrollment trend & projection

Total enrollment went from 1,394 in 2018 to 1,118 in 2022 — over 4 years.
-19.8%
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.

If the recent trend holds…

At its recent rate of -5.4%/year, projecting from 2022's 1,118 students:

2023
1,058
2025
947
2027
849

≈ 269 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 269 students projected to be lost by 2027 represent ≈ $4,304,000/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
WEST ISLIP SENIOR HIGH SCHOOL
WEST ISLIP
Public 0.7 1,153 -10.7%
BABYLON JUNIOR-SENIOR HIGH SCHOOL
BABYLON
Public 1.8 441 -0.2%
NORTH BABYLON HIGH SCHOOL
NORTH BABYLON
Public 2.7 1,585 +8.3%
WEST BABYLON SENIOR HIGH SCHOOL
WEST BABYLON
Public 2.8 1,214 -2.8%
BAY SHORE SENIOR HIGH SCHOOL
BAY SHORE
Public 3.2 1,829 -3.2%
LINDENHURST SENIOR HIGH SCHOOL
LINDENHURST
Public 3.9 1,827 +0.5%
ISLIP HIGH SCHOOL
ISLIP
Public 4.5 883 -0.5%
Ascent School For Individuals With Autism
Deer Park
Private 4.7 22

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