Enrollment
246
Kansas · 2024-25 NCES data
Other / mixed grade configuration · St Marys, KS
Federal NCES profile for St. Marys Junior Senior High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 53/100.
The verdict
St. Marys Junior Senior High earns 53/100 on the Resource Investment Index, with class sizes smaller than 92% of Kansas schools.
St. Marys Junior Senior High has class sizes smaller than 92% of Kansas schools. Computed live against every Kansas school reporting to NCES.
Enrollment
246
Kansas · 2024-25 NCES data
Teachers (FTE)
27.0
Federal CCD staff survey
Students per teacher
9.1:1
vs 13.8:1 Kansas avg
-34% vs state
Free-lunch eligible
33.1%
vs 42.7% Kansas avg
-22% vs state
How St. Marys Junior Senior High compares with Kansas and U.S. medians
Smaller classes than state median
9.1:1 - 4.7 below the Kansas state median of 13.8:1, indicating smaller average class loads than typical schools in the state.
St. Marys Junior Senior High is a mid-sized combined-grade school in St Marys, Kansas, enrolling 246 students.
Classes run notably small here: at 9.1:1, St. Marys Junior Senior High is leaner than roughly 92% of Kansas schools and 34% under the state's 13.8:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat below the state's typical profile, with 33.1% of students eligible for free meals.
With 246 students, its enrollment sits close to the Kansas median campus size.
Its Resource Investment Index lands in the upper third of 1,346 scored Kansas schools.
Against 273 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #92.
Its student body is predominantly White (82% of enrollment) (diversity index 32/100).
Counselor coverage is strong, about 246 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 29.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among St Marys's public schools, it stands alongside St Marys Elem (280 students): St. Marys Junior Senior High is smaller than that campus by headcount and runs leaner classes (9.1:1 vs 10.8:1).
Kaw Valley also operates Rossville Elem (321 students) and St Marys Elem (280 students) alongside St. Marys Junior Senior 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. Marys Junior Senior High on the metrics families compare, against Kansas and U.S. means.
| Metric | This school | vs Kansas | Kansas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.1:1 | ▼ 34% | 13.8:1 | 15.7:1 |
| Free-lunch eligible | 33.1% | ▼ 22% | 42.7% | 51.7% |
| Enrollment | 246 | top 58% | - | - |
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 82.1% of enrollment.
Simpson diversity index - at 31.5, St. Marys Junior Senior High is less mixed than the Kansas school average of 39.4.
District-wide per-pupil expenditure for Kaw Valley, which includes St. Marys Junior Senior 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 |
|---|---|---|---|
| Rossville Elem | Larger | Similar economic need | Higher S:T ratio |
| St Marys Elem | Similar size | Similar economic need | Higher S:T ratio |
| Rossville Jr.-Sr. High School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to St. Marys Junior Senior High's own figures; each column derives from NCES Common Core of Data.
1 comparable other schools (grades Mixed) serving the same city.
Matched by enrollment size and by staffing ratio across all of Kansas, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on St. Marys Junior Senior 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. Marys Junior Senior High has 246 students enrolled. It is a public school in St Marys, KS.
The student-teacher ratio at St. Marys Junior Senior High is 9.1:1, which is 34% lower than the Kansas average of 13.8:1 and 42% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
33.1% of students at St. Marys Junior Senior High are eligible for free lunch, compared to the Kansas average of 42.7%.
The largest demographic group at St. Marys Junior Senior High is White at 82.1% of enrollment, in St Marys, KS.
St. Marys Junior Senior High has a Resource Investment Index of 53/100 (higher 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).
St. Marys Junior Senior High earns 53/100 on the Resource Investment Index, with class sizes smaller than 92% of Kansas 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. Marys Junior Senior High, Kaw Valley also operates Rossville Elem (321 students), St Marys Elem (280 students), and Rossville Jr.-Sr. High School (253 students). See the Kaw Valley 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. Marys Junior Senior High, St Marys KS.” 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-marys-junior-senior-high-ks
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