St John The Baptist Diocesan High School
West Islip · NY · Catholic religious-affiliated
Similar nearby schools
Most similar nearby schools
St Anthony'S High School → Our Lady Of Mercy Academy → Kellenberg Memorial High School → Smithtown Christian School → Smithtown Christian School → Ascent School For Individuals With Autism → Sacred Heart Academy → Grace Christian Academy →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: St Anthony'S High School, Our Lady Of Mercy Academy, Kellenberg Memorial High School and 5 more. See the sidebar to compare side-by-side.
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🏛️ Your state's public flagship
Stony Brook University
The in-state tuition gap is the flagship's biggest draw — most in-state families pay far less than the out-of-state sticker. Average net price after aid runs about $18,784/yr. Admission odds depend on your student's GPA and test scores, not which high school they attend.
Source: IPEDS admissions, tuition & enrollment + College Scorecard net price. Flagship = the state's primary public research university.
💰 Pay for college in New York
New York's public scholarships
New York's Excelsior Scholarship makes SUNY and CUNY tuition-free for middle-income families — there's no GPA or test gate, but you commit to staying in New York after you graduate.
Tuition-free SUNY/CUNY for NY families under $125k AGI — no GPA or test gate, but you must stay on track and live in New York after graduating. (Stay on-track (30 credits/yr); live & work in NY afterward for the years you received it.)
Official program details ↗Eligibility rules change yearly — confirm with the official program before relying on it. Amounts are recent published figures; awards cover tuition/fees, not housing or books unless noted. Verified 2026-06-14.
Enrollment trend & projection
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:
≈ 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.
Most similar nearby high schools
The schools most like this one — same type, blended on distance and size — and where their enrollment is heading. These are the schools families here weigh against each other.
| School | Type | Miles | HS enrollment | Trend |
|---|---|---|---|---|
| St Anthony'S High School Huntington Station |
Private | 9.6 | 2,305 | -3.4% |
| Our Lady Of Mercy Academy Syosset |
Private | 13.3 | 275 | -33.3% |
| Kellenberg Memorial High School Uniondale |
Private | 15.3 | 2,549 | -2.6% |
| Smithtown Christian School Smithtown |
Private | 11.5 | 296 | — |
| Smithtown Christian School Smithtown |
Private | 11.5 | 300 | — |
| Ascent School For Individuals With Autism Deer Park |
Private | 4.7 | 22 | — |
| Sacred Heart Academy Hempstead |
Private | 17.9 | 849 | +6.5% |
| Grace Christian Academy Merrick |
Private | 13.9 | 120 | -17.8% |