Mater Dei High School
Breese · IL · Catholic religious-affiliated
A parent's read
- Where graduates go, as the school itself publishes it. Mater Dei High School publishes where its graduates go (Class of 2026): 263 colleges, including Boston College+, Boston University, Brown University, Claremont McKenna College.
- Worth asking admissions: the school profile. Reach doesn't yet show this school's SAT/ACT or AP results. Every private school produces a counselor's "school profile" for colleges, and most post it online — ask admissions for it. How a school answers says as much as the numbers.
Composed from this page's data — every claim is backed by a number in the sections below.
Where graduates go — as published by the school
Mater Dei High School publishes its college acceptances (Class of 2026): 263 colleges. See the full list ↓
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How Mater Dei High School compares for families
What families should know about Mater Dei High School.
- ▸ LocallyIL 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: Christ Our Rock Lutheran High School, Father Mcgivney Catholic H S, First Baptist Academy and 5 more. See the sidebar to compare side-by-side.
For Parents
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Your state's public flagship
University of Illinois Urbana-Champaign
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 $14,355/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.
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 -1.0%/year, projecting from 2022's 383 students:
≈ 18 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 18 students projected to be lost by 2027 represent ≈ $288,000/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 |
|---|---|---|---|---|
| Christ Our Rock Lutheran High School Centralia |
Private | 18.4 | 108 | -11.5% |
| Father Mcgivney Catholic H S Glen Carbon |
Private | 23.2 | 263 | — |
| First Baptist Academy O Fallon |
Private | 19.5 | 263 | -4.7% |
| Maryville Christian School Maryville |
Private | 23.1 | 534 | +27.1% |
| Althoff Catholic High School Belleville |
Private | 27.3 | 305 | -19.7% |
| Lahr-Well Academy Edwardsville |
Private | 27.0 | 15 | — |
| Rivers Of Life Christian School Granite City |
Private | 32.0 | 118 | +22.9% |
| Word Of Life Christian Academy Granite City |
Private | 32.0 | 23 | — |
At a glance
JSON · Using this page with an AI assistantMater Dei High School is a private high school in Breese, IL, enrolling 383 students in grades 9-12 in 2022.
Enrollment is down 4% from 2018 to 2022.
Mater Dei High School publishes a college acceptances list for the Class of 2026: 263 colleges. Source: 2025-2026 School Profile.
Sources: National Center for Education Statistics (enrollment), the federal Civil Rights Data Collection and EDFacts, state education agencies where named, and the school's own published documents where named.
Questions families ask
Where do Mater Dei High School graduates go to college? Mater Dei High School publishes a college acceptances list for the Class of 2026: 263 colleges. Source: 2025-2026 School Profile.
How many students attend Mater Dei High School? Mater Dei High School is a private high school in Breese, IL, enrolling 383 students in grades 9-12 in 2022.
Analysis: Test Prep Gurus (High School Reach, highschoolreach.com). These figures may be quoted with attribution to Test Prep Gurus.
What does AI tell parents about Mater Dei High School?
When a parent asks an AI assistant about Mater Dei High School, the answer is built from a handful of sources, and Reach is often one of them. We will send the admissions office a short report on what AI says about Mater Dei High School and where it comes from. The first report is free.
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Related reading
Entrance exams · October 2026
AP courses · October 2026