Enrollment
460
Oklahoma · 2024-25 NCES data
High school (grades 9-12) · Sulphur, OK
Federal NCES profile for Sulphur Hs, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
The verdict
Sulphur Hs earns 37/100 on the Resource Investment Index, with class sizes larger than 98% of Oklahoma schools.
Sulphur Hs has class sizes larger than 98% of Oklahoma schools. Computed live against every Oklahoma school reporting to NCES.
By Resource Investment Index, Sulphur Hs ranks #6 of 6 public schools in Sulphur, OK.
Enrollment
460
Oklahoma · 2024-25 NCES data
Teachers (FTE)
17.0
Federal CCD staff survey
Students per teacher
27.1:1
vs 16.1:1 Oklahoma avg
+68% vs state
How Sulphur Hs compares with Oklahoma and U.S. medians
Larger classes than state median
27.1:1 - 11.0 above the Oklahoma state median of 16.1:1, indicating larger average class loads than typical schools in the state.
Sulphur Hs is a mid-sized high school in Sulphur, Oklahoma, enrolling 460 students.
Class loads run heavy: 27.1:1 is larger than about 98% of Oklahoma schools and 68% above the 16.1:1 state mean, so each teacher carries more students than is typical.
Enrollment of 460 puts it in the larger third of Oklahoma schools by headcount.
Its Resource Investment Index lands in the lower third of 1,778 scored Oklahoma schools.
Its student body is led by White (55%) and American Indian / Alaska Native (26%) (diversity index 61/100).
On the academic-pipeline side it reports 4 Advanced Placement courses.
Counselor access is stretched at roughly 460 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 5.2% of students were chronically absent, below the typical post-pandemic national figure.
Its district draws 15.6% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Sulphur's high schools, it stands alongside Oklahoma School for the Deaf (39 students): Sulphur Hs is larger than that campus by headcount.
Sulphur also operates Sulphur Es (380 students) and Sulphur Ms (310 students) alongside Sulphur Hs.
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
Sulphur Hs on the metrics families compare, against Oklahoma and U.S. means.
| Metric | This school | vs Oklahoma | Oklahoma avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 27.1:1 | ▲ 68% | 16.1:1 | 15.7:1 |
| Enrollment | 460 | 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 55.4% of enrollment.
Simpson diversity index - at 61.0, Sulphur Hs is about as mixed as the Oklahoma school average of 59.6.
District-wide per-pupil expenditure for Sulphur, which includes Sulphur Hs.
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 |
|---|---|---|---|
| Sulphur Es | Similar size | No free-lunch data | Lower S:T ratio |
| Sulphur Ms | Smaller | No free-lunch data | Lower S:T ratio |
| Sulphur Intermediate Es | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Sulphur Hs's own figures; each column derives from NCES Common Core of Data.
1 comparable high schools (grades 9-12) serving the same city.
Matched by enrollment size and by staffing ratio across all of Oklahoma, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Sulphur Hs'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.
Sulphur Hs has 460 students enrolled. It is a high school in Sulphur, OK.
The student-teacher ratio at Sulphur Hs is 27.1:1, which is 68% higher than the Oklahoma average of 16.1:1 and 73% higher than the national average of 15.7:1.
The largest demographic group at Sulphur Hs is White at 55.4% of enrollment, in Sulphur, OK. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.0/100.
Sulphur Hs has a Resource Investment Index of 37/100 (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).
By Resource Investment Index, Sulphur Hs ranks #6 of 6 public schools in Sulphur, OK. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Sulphur on the city page.
Sulphur Hs earns 37/100 on the Resource Investment Index, with class sizes larger than 98% of Oklahoma 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 Sulphur Hs, Sulphur also operates Sulphur Es (380 students), Sulphur Ms (310 students), and Sulphur Intermediate Es (285 students). See the Sulphur 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, “Sulphur Hs, Sulphur OK.” 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/sulphur-hs-ok
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