Enrollment
228
Oklahoma · 2024-25 NCES data
Other / mixed grade configuration · Tulsa, OK
Federal NCES profile for Robertson Es, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
The verdict
Robertson Es earns 40/100 on the Resource Investment Index, with class sizes near the Oklahoma median.
Robertson Es has class sizes near the Oklahoma median. Computed live against every Oklahoma school reporting to NCES.
By Resource Investment Index, Robertson Es ranks #18 of 63 schools in Tulsa, OK.
Enrollment
228
Oklahoma · 2024-25 NCES data
Teachers (FTE)
14.0
Federal CCD staff survey
Students per teacher
16.3:1
vs 16.1:1 Oklahoma avg
+1% vs state
How Robertson Es compares with Oklahoma and U.S. medians
Slightly above state median
16.3:1 - 0.2 above the Oklahoma state median of 16.1:1, indicating larger average class loads than typical schools in the state.
Robertson Es is a mid-sized combined-grade school in Tulsa, Oklahoma, enrolling 228 students.
At 16.3:1, its student-teacher ratio sits close to the Oklahoma median, within a few percentage points of the 16.1:1 state norm, neither notably crowded nor notably small.
With 228 students, its enrollment sits close to the Oklahoma median campus size.
Its Resource Investment Index lands in the lower third of 1,778 scored Oklahoma schools.
Its student body is led by White (31%) and Two or More (24%) (diversity index 77/100).
Counselor coverage is strong, about 228 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 54.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 27.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Tulsa's public schools, it stands alongside Ellen Ochoa Es (968 students): Robertson Es is smaller than that campus by headcount and runs leaner classes (16.3:1 vs 16.4:1).
Tulsa also operates Booker T. Washington Hs (1,302 students) and East Central Hs (1,160 students) alongside Robertson Es.
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
Robertson Es on the metrics families compare, against Oklahoma and U.S. means.
| Metric | This school | vs Oklahoma | Oklahoma avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.3:1 | ▲ 1% | 16.1:1 | 15.7:1 |
| Enrollment | 228 | top 61% | - | - |
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 31.1% of enrollment.
Simpson diversity index - at 76.9, Robertson Es is more mixed than the Oklahoma school average of 59.6.
District-wide per-pupil expenditure for Tulsa, which includes Robertson Es.
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 |
|---|---|---|---|
| Booker T. Washington Hs | Larger | No free-lunch data | Higher S:T ratio |
| East Central Hs | Larger | No free-lunch data | Higher S:T ratio |
| Thomas Edison Preparatory Hs | Larger | No free-lunch data | Higher S:T ratio |
| Memorial Hs | Larger | No free-lunch data | Higher S:T ratio |
| Nathan Hale Hs | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Robertson Es's own figures; each column derives from NCES Common Core of Data.
6 comparable other schools (grades Mixed) 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 Robertson Es'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.
Robertson Es has 228 students enrolled. It is a public school in Tulsa, OK.
The student-teacher ratio at Robertson Es is 16.3:1, which is 1% higher than the Oklahoma average of 16.1:1 and 4% higher than the national average of 15.7:1.
The largest demographic group at Robertson Es is White at 31.1% of enrollment, in Tulsa, OK. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 76.9/100.
Robertson Es 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, Robertson Es ranks #18 of 63 schools in Tulsa, OK. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Tulsa on the city page.
Robertson Es earns 40/100 on the Resource Investment Index, with class sizes near the Oklahoma 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 Robertson Es, Tulsa also operates Booker T. Washington Hs (1,302 students), East Central Hs (1,160 students), and Thomas Edison Preparatory Hs (1,083 students). See the Tulsa 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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Last updated:
PlainSchools, “Robertson Es, Tulsa 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/robertson-es-ok
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