Enrollment
590
Oklahoma · 2024-25 NCES data
Other / mixed grade configuration · Tulsa, OK
Federal NCES profile for Darnaby Es, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
The verdict
Darnaby Es earns 41/100 on the Resource Investment Index, with class sizes larger than 80% of Oklahoma schools.
Darnaby Es has class sizes larger than 80% of Oklahoma schools. Computed live against every Oklahoma school reporting to NCES.
By Resource Investment Index, Darnaby Es ranks #14 of 63 schools in Tulsa, OK.
Enrollment
590
Oklahoma · 2024-25 NCES data
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
18.4:1
vs 16.1:1 Oklahoma avg
+14% vs state
How Darnaby Es compares with Oklahoma and U.S. medians
Slightly above state median
18.4:1 - 2.3 above the Oklahoma state median of 16.1:1, indicating larger average class loads than typical schools in the state.
Darnaby Es is a large combined-grade school in Tulsa, Oklahoma, enrolling 590 students.
Class loads run somewhat heavier than typical: 18.4:1 puts it in the larger third of Oklahoma schools by student-teacher ratio.
Enrollment of 590 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 (44%) and Hispanic or Latino (16%) (diversity index 74/100).
Counselor access is stretched at roughly 686 students per counselor, well above the ASCA-recommended 250:1 ceiling.
13.7% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Tulsa's public schools, it stands alongside Ellen Ochoa Es (968 students): Darnaby Es is smaller than that campus by headcount and runs heavier classes (18.4:1 vs 16.4:1).
Union also operates Union Hs (3,569 students) and Union 6th-7th Grade Ctr (2,123 students) alongside Darnaby 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
Darnaby 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 | 18.4:1 | ▲ 14% | 16.1:1 | 15.7:1 |
| Enrollment | 590 | top 15% | - | - |
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 44.2% of enrollment.
Simpson diversity index - at 73.5, Darnaby Es is more mixed than the Oklahoma school average of 59.6.
District-wide per-pupil expenditure for Union, which includes Darnaby 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 |
|---|---|---|---|
| Union Hs | Larger | No free-lunch data | Higher S:T ratio |
| Union 6th-7th Grade Ctr | Larger | No free-lunch data | Lower S:T ratio |
| Union Hs Freshman Academy | Larger | No free-lunch data | Similar S:T ratio |
| Union 8th Grade Ctr | Larger | No free-lunch data | Similar S:T ratio |
| Ellen Ochoa Es | Larger | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Darnaby 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 Darnaby 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.
Darnaby Es has 590 students enrolled. It is a public school in Tulsa, OK.
The student-teacher ratio at Darnaby Es is 18.4:1, which is 14% higher than the Oklahoma average of 16.1:1 and 17% higher than the national average of 15.7:1.
The largest demographic group at Darnaby Es is White at 44.2% of enrollment, in Tulsa, OK. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 73.5/100.
Darnaby Es has a Resource Investment Index of 41/100 (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, Darnaby Es ranks #14 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.
Darnaby Es earns 41/100 on the Resource Investment Index, with class sizes larger than 80% 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 Darnaby Es, Union also operates Union Hs (3,569 students), Union 6th-7th Grade Ctr (2,123 students), and Union Hs Freshman Academy (1,242 students). See the Union 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, “Darnaby 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/darnaby-es-ok
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