Enrollment
451
Missouri · 2024-25 NCES data
Middle school (grades 6-8) · St Clair, MO
Federal NCES profile for St. Clair Jr. High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
The verdict
St. Clair Jr. High earns 40/100 on the Resource Investment Index, with class sizes near the Missouri median.
St. Clair Jr. High has class sizes near the Missouri median. Computed live against every Missouri school reporting to NCES.
By Resource Investment Index, St. Clair Jr. High ranks #5 of 5 public schools in St Clair, MO.
NCES ID 292910001863 Verify on NCES CCD record →
Enrollment
451
Missouri · 2024-25 NCES data
Teachers (FTE)
34.0
Federal CCD staff survey
Students per teacher
13.3:1
vs 12.8:1 Missouri avg
+4% vs state
Free-lunch eligible
38.5%
vs 46.1% Missouri avg
-16% vs state
How St. Clair Jr. High compares with Missouri and U.S. medians
Slightly above state median
13.3:1 - 0.5 above the Missouri state median of 12.8:1, indicating larger average class loads than typical schools in the state.
St. Clair Jr. High is a mid-sized middle school in St Clair, Missouri, enrolling 451 students.
At 13.3:1, its student-teacher ratio sits close to the Missouri median, within a few percentage points of the 12.8:1 state norm, neither notably crowded nor notably small.
Its free-meal eligibility rate of 38.5% lands close to the Missouri typical range, neither a high- nor low-need campus by this measure.
Enrollment of 451 puts it in the larger third of Missouri schools by headcount.
Its Resource Investment Index lands in the lower third of 2,313 scored Missouri schools.
Among 519 similarly sized, similarly resourced-need Missouri schools statewide, it ranks #439, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (94% of enrollment) (diversity index 11/100).
Counselor access is stretched at roughly 451 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 26.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 19.2% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 120 in- and out-of-school suspensions were reported for 451 students in the 2021-22 Civil Rights Data Collection.
St. Clair R-Xiii also operates St. Clair High (627 students) and St. Clair Elem. (441 students) alongside St. Clair Jr. High.
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. Clair Jr. High on the metrics families compare, against Missouri and U.S. means.
| Metric | This school | vs Missouri | Missouri avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.3:1 | ▲ 4% | 12.8:1 | 15.7:1 |
| Free-lunch eligible | 38.5% | ▼ 16% | 46.1% | 51.7% |
| Enrollment | 451 | top 27% | - | - |
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 94.0% of enrollment.
Simpson diversity index - at 11.4, St. Clair Jr. High is less mixed than the Missouri school average of 31.0.
District-wide per-pupil expenditure for St. Clair R-Xiii, which includes St. Clair Jr. High.
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. Clair High | Larger | Similar economic need | Similar S:T ratio |
| St. Clair Elem. | Similar size | Similar economic need | Similar S:T ratio |
| Edgar Murray Elem. | Similar size | Similar economic need | Similar S:T ratio |
| Franklin Co. Specl. Ed. Coop. | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to St. Clair Jr. High's own figures; each column derives from NCES Common Core of Data.
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.
Next steps
Verify locally before acting on St. Clair Jr. High'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. Clair Jr. High has 451 students enrolled. It is a middle school in St Clair, MO.
The student-teacher ratio at St. Clair Jr. High is 13.3:1, which is 4% higher than the Missouri average of 12.8:1 and 15% lower than the national average of 15.7:1.
38.5% of students at St. Clair Jr. High are eligible for free lunch, compared to the Missouri average of 46.1%.
The largest demographic group at St. Clair Jr. High is White at 94.0% of enrollment, in St Clair, MO.
St. Clair Jr. High has a Resource Investment Index of 40/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, St. Clair Jr. High ranks #5 of 5 public schools in St Clair, MO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in St Clair on the city page.
St. Clair Jr. High earns 40/100 on the Resource Investment Index, with class sizes near the Missouri median. 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. Clair Jr. High, St. Clair R-Xiii also operates St. Clair High (627 students), St. Clair Elem. (441 students), and Edgar Murray Elem. (429 students). See the St. Clair R-Xiii 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. Clair Jr. High, St Clair MO.” 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-clair-jr-high-mo
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