Enrollment
491
Oklahoma · 2024-25 NCES data
Other / mixed grade configuration · Tulsa, OK
Henry Zarrow International Sch
Federal NCES profile for Henry Zarrow International Sch, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
2024-25 NCES dataOther / mixed grade configurationNCES 403024002352
👥 S:T ratio 11
🌟 Gifted program 70
🎓 Counselors 2
📋 Attendance 82
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Henry Zarrow International Sch earns 41/100 on the Resource Investment Index, with class sizes larger than 95% of Oklahoma schools.
- #14 of 63
- schools in Tulsa · Resource Index
- 41
- Resource Index · Typical
- 22.3:1
- large classes for Oklahoma
- 491
- students enrolled
Henry Zarrow International Sch has class sizes larger than 95% of Oklahoma schools. Computed live against every Oklahoma school reporting to NCES.
By Resource Investment Index, Henry Zarrow International Sch ranks #14 of 63 schools in Tulsa, OK.
School address
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
22.3:1
vs 16.1:1 Oklahoma avg
+39% vs state
Student-teacher ratio in context
How Henry Zarrow International Sch compares with Oklahoma and U.S. medians
What stands out at Henry Zarrow International Sch
Henry Zarrow International Sch is a mid-sized combined-grade school in Tulsa, Oklahoma, enrolling 491 students.
Class loads run heavy: 22.3:1 is larger than about 95% of Oklahoma schools and 39% above the 16.1:1 state mean, so each teacher carries more students than is typical.
Enrollment of 491 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 Hispanic or Latino (45%) and White (34%) (diversity index 66/100).
Counselor access is stretched at roughly 491 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 7.1% of students were chronically absent, below the typical post-pandemic national figure.
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): Henry Zarrow International Sch is smaller than that campus by headcount and runs heavier classes (22.3:1 vs 16.4:1).
Tulsa also operates Booker T. Washington Hs (1,302 students) and East Central Hs (1,160 students) alongside Henry Zarrow International Sch.
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
How Henry Zarrow International Sch compares
Henry Zarrow International Sch on the metrics families compare, against Oklahoma and U.S. means.
| Metric | This school | vs Oklahoma | Oklahoma avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 22.3:1 | ▲ 39% | 16.1:1 | 15.7:1 |
| Enrollment | 491 | top 24% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
22.3:1
Leaner classes than 10% of US schools, heavier class loads than most.
491
Bigger than 60% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
22.3:1
students per teacher
- 39% above state mean
Top 95% in Oklahoma - lower ratio than 5% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
7.1%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$12,178
per pupil, district-wide
- below Oklahoma avg of $12,594
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 491 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
Hispanic or Latino 45.2%
White 33.8%
Two or More 11.6%
African American 5.5%
American Indian / Alaska Native 3.3%
Asian 0.6%
Largest group: Hispanic or Latino at 45.2% of enrollment.
Student-body diversity index 66.4/100
Simpson diversity index - at 66.4, Henry Zarrow International Sch is more mixed than the Oklahoma school average of 59.6.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Tulsa, which includes Henry Zarrow International Sch.
$12,178
Per student
-3%
vs Oklahoma
Avg $12,594
-27%
vs U.S.
Avg $16,593
Revenue mix
Local 43.1%
State 29.9%
Federal 27.1%
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.
How Henry Zarrow International Sch Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Booker T. Washington Hs | Larger | No free-lunch data | Similar S:T ratio |
| East Central Hs | Larger | No free-lunch data | Similar S:T ratio |
| Thomas Edison Preparatory Hs | Larger | No free-lunch data | Lower S:T ratio |
| Memorial Hs | Larger | No free-lunch data | Similar S:T ratio |
| Nathan Hale Hs | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Henry Zarrow International Sch's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,302
- Students per teacher
- 22.1:1
- Resource Index
- 37/100
- Enrollment
- 1,160
- Students per teacher
- 21.5:1
- Resource Index
- 38/100
- Enrollment
- 1,083
- Students per teacher
- 20.4:1
- Resource Index
- 38/100
- Enrollment
- 1,005
- Students per teacher
- 20.9:1
- Resource Index
- 37/100
- Enrollment
- 995
- Students per teacher
- 29.3:1
- Resource Index
- 39/100
Similar other schools in Tulsa
6 comparable other schools (grades Mixed) serving the same city.
Ellen Ochoa Es
Standard public school
968 students 16.4:1 students per teacher
Northwest Es
Standard public school
959 students 15.7:1 students per teacher
Kendall-Whittier Es
Standard public school
825 students 17.9:1 students per teacher
Southeast Es
Standard public school
817 students 16.7:1 students per teacher
Skelly Es
Standard public school
775 students 19.4:1 students per teacher
Disney Es
Standard public school
724 students 20.1:1 students per teacher
Similar other schools statewide
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.
Similar enrollment (~491 students)
Similar student-teacher ratio (~22.3:1)
Next steps
Verify locally before acting on Henry Zarrow International Sch's federal record.
- Compare Henry Zarrow International Sch against another school. Compare schools
- Tulsa's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Henry Zarrow International Sch
How many students attend Henry Zarrow International Sch?
Henry Zarrow International Sch has 491 students enrolled. It is a public school in Tulsa, OK.
What is the student-teacher ratio at Henry Zarrow International Sch?
The student-teacher ratio at Henry Zarrow International Sch is 22.3:1, which is 39% higher than the Oklahoma average of 16.1:1 and 42% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Henry Zarrow International Sch?
The largest demographic group at Henry Zarrow International Sch is Hispanic or Latino at 45.2% of enrollment, in Tulsa, OK. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.4/100.
What is the Resource Investment Index for Henry Zarrow International Sch?
Henry Zarrow International Sch 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).
How does Henry Zarrow International Sch rank among schools in Tulsa?
By Resource Investment Index, Henry Zarrow International Sch 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.
Is Henry Zarrow International Sch a good school?
Henry Zarrow International Sch earns 41/100 on the Resource Investment Index, with class sizes larger than 95% 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.
What other schools are in Tulsa?
Besides Henry Zarrow International Sch, 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.
Related tools
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.