Enrollment
1,643
Missouri · 2024-25 NCES data
High school (grades 9-12) · O'fallon, MO
Federal NCES profile for Ft. Zumwalt West High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 53/100.
The verdict
Ft. Zumwalt West High earns 53/100 on the Resource Investment Index, with class sizes near the Missouri median. It is also one of the largest schools in Missouri.
Ft. Zumwalt West High has class sizes near the Missouri median. Computed live against every Missouri school reporting to NCES.
By Resource Investment Index, Ft. Zumwalt West High ranks #17 of 18 public schools in O'fallon, MO.
NCES ID 290837002624 Verify on NCES CCD record →
Enrollment
1,643
Missouri · 2024-25 NCES data
Teachers (FTE)
121.0
Federal CCD staff survey
Students per teacher
13.6:1
vs 12.8:1 Missouri avg
+6% vs state
Free-lunch eligible
13.7%
vs 46.1% Missouri avg
-70% vs state
How Ft. Zumwalt West High compares with Missouri and U.S. medians
Slightly above state median
13.6:1 - 0.8 above the Missouri state median of 12.8:1, indicating larger average class loads than typical schools in the state.
Ft. Zumwalt West High is a lower-poverty, large high school in O'fallon, Missouri, enrolling 1,643 students.
Class loads run somewhat heavier than typical: 13.6:1 puts it in the larger third of Missouri schools by student-teacher ratio.
Comparatively few students face economic hardship here, 13.7% free-meal eligibility runs 70% below the Missouri average.
By headcount it is one of the larger campuses in Missouri, bigger than 98% of state schools at 1,643 students.
Its Resource Investment Index lands in the lower third of 2,313 scored Missouri schools.
Against 67 statewide peers matched on enrollment and economic need, it ranks mid-pack at #36.
Its student body is led by White (73%) and Hispanic or Latino (9%) (diversity index 45/100).
On the academic-pipeline side it reports 29 Advanced Placement courses.
Counselor coverage runs a bit thin, about 274 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 22.0% of students chronically absent per the 2021-22 civil-rights collection.
Ft. Zumwalt R-Ii also operates Ft. Zumwalt North High (1,538 students) and Ft. Zumwalt South High (1,212 students) alongside Ft. Zumwalt West 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
Ft. Zumwalt West 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 | 13.6:1 | ▲ 6% | 12.8:1 | 15.7:1 |
| Free-lunch eligible | 13.7% | ▼ 70% | 46.1% | 51.7% |
| Enrollment | 1,643 | top 2% | - | - |
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 73.1% of enrollment.
Simpson diversity index - at 44.7, Ft. Zumwalt West High is more mixed than the Missouri school average of 31.0.
District-wide per-pupil expenditure for Ft. Zumwalt R-Ii, which includes Ft. Zumwalt West 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 |
|---|---|---|---|
| Ft. Zumwalt North High | Similar size | Similar economic need | Similar S:T ratio |
| Ft. Zumwalt South High | Smaller | Similar economic need | Similar S:T ratio |
| Ft. Zumwalt East High | Smaller | Similar economic need | Similar S:T ratio |
| Ft. Zuwmalt West Middle | Smaller | Similar economic need | Lower S:T ratio |
| Ft. Zumwalt North Middle | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Ft. Zumwalt West 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 Ft. Zumwalt West 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.
Ft. Zumwalt West High has 1,643 students enrolled. It is a high school in O'fallon, MO.
The student-teacher ratio at Ft. Zumwalt West High is 13.6:1, which is 6% higher than the Missouri average of 12.8:1 and 13% lower than the national average of 15.7:1.
13.7% of students at Ft. Zumwalt West High are eligible for free lunch, compared to the Missouri average of 46.1%.
The largest demographic group at Ft. Zumwalt West High is White at 73.1% of enrollment, in O'fallon, MO.
Ft. Zumwalt West High has a Resource Investment Index of 53/100 (higher 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).
By Resource Investment Index, Ft. Zumwalt West High ranks #17 of 18 public schools in O'fallon, 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 O'fallon on the city page.
Ft. Zumwalt West High earns 53/100 on the Resource Investment Index, with class sizes near the Missouri median. It is also one of the largest schools in Missouri. 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 Ft. Zumwalt West High, Ft. Zumwalt R-Ii also operates Ft. Zumwalt North High (1,538 students), Ft. Zumwalt South High (1,212 students), and Ft. Zumwalt East High (1,171 students). See the Ft. Zumwalt R-Ii 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, “Ft. Zumwalt West High, O'fallon 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/ft-zumwalt-west-high-mo
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