Matheny School
Peapack · NJ · Private independent · K-12 combined
Similar nearby schools
Most similar nearby schools
Gill St Bernard S School → Montgomery Academy → Somerset Hills Learning Institute → Bonnie Brae School → Shepard Preparatory High School → Flexschool → Flex School → The Morristown Beard School →Keep this page current
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How Matheny School compares for families
What families should know about Matheny School.
- ▸ LocallyNJ students outperform the US average on NAEP 8th-grade math (+12 points).
- ▸ vs Similar SchoolsThe closest comparables nearby: Gill St Bernard S School, Montgomery Academy, Somerset Hills Learning Institute and 5 more. See the sidebar to compare side-by-side.
For Parents
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Your state's public flagship
Rutgers University-New Brunswick
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 $24,406/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 -8.0%/year, projecting from 2022's 33 students:
A small or specialty program — naive trend math doesn't capture the school's full picture. Read the trend as directional, not predictive.
An extrapolation of the recent trajectory, not a forecast of the school's plans; ignores one-off shocks.
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 |
|---|---|---|---|---|
| Gill St Bernard S School Gladstone |
Private | 2.1 | 575 | -12.5% |
| Montgomery Academy Basking Ridge |
Private | 3.8 | 61 | -17.6% |
| Somerset Hills Learning Institute Bedminster |
Private | 4.7 | 29 | — |
| Bonnie Brae School Liberty Corner |
Private | 5.5 | 66 | -25.0% |
| Shepard Preparatory High School Morristown |
Private | 10.4 | 55 | -63.6% |
| Flexschool Berkeley Heights |
Private | 11.3 | 77 | — |
| Flex School Berkeley Hts |
Private | 11.4 | 76 | — |
| The Morristown Beard School Morristown |
Private | 11.8 | 616 | +9.2% |
At a glance
JSON · Using this page with an AI assistantMatheny School is a private high school in Peapack, NJ, enrolling 33 students in grades 9-12 in 2022.
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
How many students attend Matheny School? Matheny School is a private high school in Peapack, NJ, enrolling 33 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 Matheny School?
When a parent asks an AI assistant about Matheny 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 Matheny School and where it comes from. The first report is free.
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Related reading
AP courses · October 2026
Test scores · October 2026