Enrollment
391
Minnesota · 2024-25 NCES data
High school (grades 9-12) · Stillwater, MN
Federal NCES profile for St. Croix Preparatory Academy Upper, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
The verdict
St. Croix Preparatory Academy Upper earns 48/100 on the Resource Investment Index, with class sizes larger than 93% of Minnesota schools.
St. Croix Preparatory Academy Upper has class sizes larger than 93% of Minnesota schools. Computed live against every Minnesota school reporting to NCES.
By Resource Investment Index, St. Croix Preparatory Academy Upper ranks #1 of 3 high schools in Stillwater, MN.
NCES ID 270036204360 Verify on NCES CCD record →
Enrollment
391
Minnesota · 2024-25 NCES data
Teachers (FTE)
15.0
Federal CCD staff survey
Students per teacher
26.1:1
vs 15.8:1 Minnesota avg
+65% vs state
Free-lunch eligible
7.9%
vs 42.8% Minnesota avg
-82% vs state
How St. Croix Preparatory Academy Upper compares with Minnesota and U.S. medians
Larger classes than state median
26.1:1 - 10.3 above the Minnesota state median of 15.8:1, indicating larger average class loads than typical schools in the state.
St. Croix Preparatory Academy Upper is a lower-poverty, mid-sized charter high school in Stillwater, Minnesota, enrolling 391 students.
Class loads run heavy: 26.1:1 is larger than about 93% of Minnesota schools and 65% above the 15.8:1 state mean, so each teacher carries more students than is typical.
Comparatively few students face economic hardship here, 7.9% free-meal eligibility runs 82% below the Minnesota average.
With 391 students, its enrollment sits close to the Minnesota median campus size.
Its Resource Investment Index sits near the middle of the pack among 2,334 scored Minnesota schools.
Against 157 statewide peers matched on enrollment and economic need, it ranks mid-pack at #84.
Its student body is led by White (74%) and Asian (11%) (diversity index 43/100).
On the academic-pipeline side it reports 15 Advanced Placement courses.
Attendance holds up well here: only 4.9% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding St. Croix Preparatory Academy spends $10,553 per pupil, 31% below the Minnesota average, a leaner-resourced district than most.
St. Croix Preparatory Academy also operates St. Croix Preparatory Academy Lower (450 students) and St. Croix Prep Academy Middle (371 students) alongside St. Croix Preparatory Academy Upper.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
St. Croix Preparatory Academy Upper on the metrics families compare, against Minnesota and U.S. means.
| Metric | This school | vs Minnesota | Minnesota avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 26.1:1 | ▲ 65% | 15.8:1 | 15.7:1 |
| Free-lunch eligible | 7.9% | ▼ 82% | 42.8% | 51.7% |
| Enrollment | 391 | top 37% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: White at 74.2% of enrollment.
Simpson diversity index - at 42.9, St. Croix Preparatory Academy Upper is about as mixed as the Minnesota school average of 42.8.
District-wide per-pupil expenditure for St. Croix Preparatory Academy, which includes St. Croix Preparatory Academy Upper.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| St. Croix Preparatory Academy Lower | Similar size | Similar economic need | Lower S:T ratio |
| St. Croix Prep Academy Middle | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to St. Croix Preparatory Academy Upper's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Minnesota, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on St. Croix Preparatory Academy Upper's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
St. Croix Preparatory Academy Upper has 391 students enrolled. It is a high school in Stillwater, MN.
The student-teacher ratio at St. Croix Preparatory Academy Upper is 26.1:1, which is 65% higher than the Minnesota average of 15.8:1 and 66% higher than the national average of 15.7:1.
7.9% of students at St. Croix Preparatory Academy Upper are eligible for free lunch, compared to the Minnesota average of 42.8%.
The largest demographic group at St. Croix Preparatory Academy Upper is White at 74.2% of enrollment, in Stillwater, MN.
St. Croix Preparatory Academy Upper has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, St. Croix Preparatory Academy Upper ranks #1 of 3 high schools in Stillwater, MN. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Stillwater on the city page.
St. Croix Preparatory Academy Upper earns 48/100 on the Resource Investment Index, with class sizes larger than 93% of Minnesota schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides St. Croix Preparatory Academy Upper, St. Croix Preparatory Academy also operates St. Croix Preparatory Academy Lower (450 students) and St. Croix Prep Academy Middle (371 students). See the St. Croix Preparatory Academy district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “St. Croix Preparatory Academy Upper, Stillwater MN.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/st-croix-preparatory-academy-upper-mn
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