St Dominic High School
O'Fallon · MO · Catholic religious-affiliated
Similar nearby schools
Most similar nearby schools
St Dominic High School → Christian School District → Lutheran High School Of St Charles County → Christian School District → Barat Academy → Barat Academy → Duchesne High School → St Louis Priory School →Keep this page current
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How St Dominic High School compares for families
What families should know about St Dominic High 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: St Dominic High School, Christian School District, Lutheran High School Of St Charles County 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 +7.3%/year, projecting from 2022's 927 students:
An extrapolation of the recent trajectory, not a forecast of the school's plans; ignores one-off shocks.
Revenue upside
At tuition per student, the 392 students projected to be gained by 2027 represent ≈ $6,272,000/year in tuition upside.
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 Dominic High School O'Fallon |
Private | 0.0 | 926 | — |
| Christian School District O'Fallon |
Private | 2.8 | 512 | — |
| Lutheran High School Of St Charles County Saint Peters |
Private | 7.1 | 439 | +27.2% |
| Christian School District O'Fallon |
Private | 7.1 | 515 | — |
| Barat Academy Chesterfield |
Private | 11.4 | 73 | +30.4% |
| Barat Academy Chesterfield |
Private | 11.4 | 56 | -31.7% |
| Duchesne High School Saint Charles |
Private | 12.0 | 294 | -8.4% |
| St Louis Priory School Saint Louis |
Private | 17.3 | 307 | -20.5% |
At a glance
JSON · Using this page with an AI assistantSt Dominic High School is a private high school in O'Fallon, MO, enrolling 927 students in grades 9-12 in 2022.
Enrollment is up 33% from 2018 to 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 St Dominic High School? St Dominic High School is a private high school in O'Fallon, MO, enrolling 927 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 St Dominic High School?
When a parent asks an AI assistant about St Dominic 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 St Dominic High 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