Enrollment
442
Missouri · 2024-25 NCES data
High school (grades 9-12) · St Louis, MO
Confluence Preparatory Academy
Federal NCES profile for Confluence Preparatory Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 290057903102Charter school
👥 S:T ratio 39
📚 AP courses 40
🌟 Gifted program 30
🎓 Counselors 56
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Confluence Preparatory Academy earns 33/100 on the Resource Investment Index, with class sizes larger than 81% of Missouri schools.
- #22 of 26
- high schools in St Louis · Resource Index
- 33
- Resource Index · Typical
- 15.2:1
- large classes for Missouri
- 100.0%
- free-lunch eligible
Confluence Preparatory Academy has class sizes larger than 81% of Missouri schools. Computed live against every Missouri school reporting to NCES.
By Resource Investment Index, Confluence Preparatory Academy ranks #22 of 26 high schools in St Louis, MO.
School address
District: Confluence Academies · Missouri
NCES ID 290057903102 Verify on NCES CCD record →
Teachers (FTE)
29.0
Federal CCD staff survey
Students per teacher
15.2:1
vs 12.8:1 Missouri avg
+19% vs state
Free-lunch eligible
100.0%
vs 46.1% Missouri avg
+117% vs state
Student-teacher ratio in context
How Confluence Preparatory Academy compares with Missouri and U.S. medians
What stands out at Confluence Preparatory Academy
Confluence Preparatory Academy is a high-poverty, mid-sized charter high school in St Louis, Missouri, enrolling 442 students.
Class loads run somewhat heavier than typical: 15.2:1 puts it in the larger third of Missouri schools by student-teacher ratio.
Economic need is high: 100.0% of students qualify for free meals, 117% above the Missouri average, a Title I-weighted population that federal funding formulas prioritise.
Enrollment of 442 puts it in the larger third of Missouri schools by headcount.
Its Resource Investment Index trails 95% of the 2,313 Missouri schools with a score on record, one of the lower results on this measure.
Among 193 similarly sized, similarly resourced-need Missouri schools statewide, it ranks #167, in the lower tier once campus size and economic need are matched.
Its student body is predominantly African American (82% of enrollment) (diversity index 30/100).
On the academic-pipeline side it reports 8 Advanced Placement courses.
Counselor coverage is strong, about 221 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 52.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Confluence Academies spends $16,908 per pupil, 31% above the Missouri average, a better-resourced district than most.
Its district draws 25.2% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 293 in- and out-of-school suspensions were reported for 442 students in the 2021-22 Civil Rights Data Collection.
Confluence Academies also operates South City (838 students) and Old North Academy (448 students) alongside Confluence Preparatory Academy.
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
How Confluence Preparatory Academy compares
Confluence Preparatory Academy on the metrics families compare, against Missouri and U.S. means.
| Metric | This school | vs Missouri | Missouri avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.2:1 | ▲ 19% | 12.8:1 | 15.7:1 |
| Free-lunch eligible | 100.0% | ▲ 117% | 46.1% | 51.7% |
| Enrollment | 442 | top 28% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.2:1
Leaner classes than 45% of US schools, a middle-of-the-pack class size.
442
Bigger than 54% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
100.0%
free-lunch eligible
- 117% above the Missouri average of 46.1%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
15.2:1
students per teacher
- 19% above state mean
Top 81% in Missouri - lower ratio than 19% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
52.5%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,908
per pupil, district-wide
- above Missouri avg of $12,931
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors2.0 FTE
Per 221 students, the combined health-and-guidance staffing load for this school.
Discipline context
142
in-school suspensions + 151 out-of-school
Suspension rate: 32.1 per 100 students. Combined in-school and out-of-school rate: 66.3 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
African American 82.4%
Hispanic or Latino 12.7%
Two or More 2.5%
White 1.8%
American Indian / Alaska Native 0.5%
Asian 0.2%
Largest group: African American at 82.4% of enrollment.
Student-body diversity index 30.4/100
Simpson diversity index - at 30.4, Confluence Preparatory Academy is about as mixed as the Missouri school average of 31.0.
Programs
AP courses offered 8
Funding & spending
District-wide per-pupil expenditure for Confluence Academies, which includes Confluence Preparatory Academy.
$16,908
Per student
+31%
vs Missouri
Avg $12,931
+2%
vs U.S.
Avg $16,593
Revenue mix
Local 8.9%
State 65.9%
Federal 25.2%
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.
How Confluence Preparatory Academy Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| South City | Larger | Similar economic need | Lower S:T ratio |
| Old North Academy | Similar size | Similar economic need | Lower S:T ratio |
| Grand Center Arts Academy High | Similar size | Similar economic need | Lower S:T ratio |
| Grand Center Arts Acad Middle | Smaller | Similar economic need | Lower S:T ratio |
| Aspire Academy | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Confluence Preparatory Academy's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 838
- Students per teacher
- 12.9:1
- Resource Index
- 26/100
- Enrollment
- 448
- Students per teacher
- 9.7:1
- Resource Index
- 37/100
- Enrollment
- 402
- Students per teacher
- 11.5:1
- Resource Index
- 36/100
- Enrollment
- 218
- Students per teacher
- 11.5:1
- Resource Index
- 45/100
- Enrollment
- 112
- Students per teacher
- 8:1
- Resource Index
- 44/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Missouri, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~442 students)
Similar student-teacher ratio (~15.2:1)
Next steps
Verify locally before acting on Confluence Preparatory Academy's federal record.
- Compare Confluence Preparatory Academy against another school. Compare schools
- Confluence Academies's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Confluence Preparatory Academy
How many students attend Confluence Preparatory Academy?
Confluence Preparatory Academy has 442 students enrolled. It is a high school in St Louis, MO.
What is the student-teacher ratio at Confluence Preparatory Academy?
The student-teacher ratio at Confluence Preparatory Academy is 15.2:1, which is 19% higher than the Missouri average of 12.8:1 and 3% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Confluence Preparatory Academy?
100.0% of students at Confluence Preparatory Academy are eligible for free lunch, compared to the Missouri average of 46.1%.
What is the racial and ethnic makeup of Confluence Preparatory Academy?
The largest demographic group at Confluence Preparatory Academy is African American at 82.4% of enrollment, in St Louis, MO.
What is the Resource Investment Index for Confluence Preparatory Academy?
Confluence Preparatory Academy has a Resource Investment Index of 33/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Confluence Preparatory Academy rank among high schools in St Louis?
By Resource Investment Index, Confluence Preparatory Academy ranks #22 of 26 high schools in St Louis, MO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in St Louis on the city page.
Is Confluence Preparatory Academy a good school?
Confluence Preparatory Academy earns 33/100 on the Resource Investment Index, with class sizes larger than 81% of Missouri 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.
What other schools are in Confluence Academies?
Besides Confluence Preparatory Academy, Confluence Academies also operates South City (838 students), Old North Academy (448 students), and Grand Center Arts Academy High (402 students). See the Confluence Academies district page for the complete list.
Related tools
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.