Principia School
Saint Louis · MO · Religious-affiliated · K-12 combined
Similar nearby schools
Most similar nearby schools
Westminster Christian Academy → Al-Salam Day School → St Louis Priory School → Missouri Torah Institute → Christian Academy Of Greater St Louis → Visitation Academy → De Smet Jesuit High School → H F Epstein Hebrew Academy →📋 At a glance
- Program details not reported to CRDC
- Academic signals not yet ingested for this school
Composed from federal CRDC offerings, EDFacts ACGR, and other public data. Full breakdowns below.
How Principia School compares for families
What families should know about Principia School.
- ▸ LocallyMO 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: Westminster Christian Academy, Al-Salam Day School, St Louis Priory School and 5 more. See the sidebar to compare side-by-side.
For Parents
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🏛️ Your state's public flagship
University of Missouri-Columbia
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 $20,268/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 -54.8%/year, projecting from 2022's 15 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 |
|---|---|---|---|---|
| Westminster Christian Academy Town And Country |
Private | 1.6 | 930 | -4.4% |
| Al-Salam Day School Manchester |
Private | 2.3 | 232 | +3.6% |
| St Louis Priory School Saint Louis |
Private | 0.9 | 307 | -20.5% |
| Missouri Torah Institute Chesterfield |
Private | 5.3 | 72 | — |
| Christian Academy Of Greater St Louis Saint Louis |
Private | 5.9 | 98 | +19.5% |
| Visitation Academy Saint Louis |
Private | 1.9 | 543 | +12.0% |
| De Smet Jesuit High School Saint Louis |
Private | 2.5 | 645 | -13.5% |
| H F Epstein Hebrew Academy Saint Louis |
Private | 6.7 | 74 | -20.4% |