Enrollment
491
Oklahoma · 2024-25 NCES data
2024-25 NCES data Other / mixed grade configuration NCES 403024002352
Henry Zarrow International Sch — Tulsa, OK
Federal NCES profile for Henry Zarrow International Sch, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 42/100.
👥 Class size 15
🌟 Gifted program 70
🎓 Counselors 2
📋 Attendance 82
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
21.3:1
vs 16.4:1 Oklahoma avg
+30% vs state
Student-teacher ratio in context
How Henry Zarrow International Sch compares with Oklahoma and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Henry Zarrow International Sch reports 491 enrolled students to the National Center for Education Statistics (NCES) alongside 22.0 full-time-equivalent teachers, producing a 21.3:1 student-teacher ratio. That figure sits 30% above the Oklahoma state mean of 16.4:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 34% higher, a useful calibration for families comparing districts across state lines.
Counselor coverage works out to roughly 491 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 7.1% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Tulsa spends $15,015 per pupil district-wide, above the Oklahoma average of $14,176 and below the national average of $19,490. Revenue comes 43.1% from local sources (property taxes), 29.9% from the state, and 27.1% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 42/100 (D), calculated from 4 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Henry Zarrow International Sch compares
Cross-validating school-level NCES values against Oklahoma state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Oklahoma | Oklahoma avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.3:1 | ▲ 30% | 16.4:1 | 15.9:1 |
| Enrollment | 491 | top 76% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Staffing depth
21.3:1
students per teacher
— 30% above state mean
Top 93% in Oklahoma — lower ratio than 7% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
7.1%
chronically absent (missed 10%+ of school days)
Below 10% — strong attendance relative to the post-pandemic national landscape.
Funding equity
$15,015
per pupil, district-wide
— above Oklahoma avg of $14,176
Below the U.S. average per-pupil spend — funding constraints 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
Enrollment 491 Top 76% in Oklahoma — larger than 24% of 1,778 state schools
Teachers (FTE) 22.0
Students per teacher 21.3:1 +30% vs state
Free-lunch eligible —
NCES ID 403024002352
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.
Programs & staff
Gifted & talented Yes
Counselors (FTE) 1.0
Students per counselor 491:1
Discipline & special education
Chronically absent 7.1%
In-school suspensions 0
Out-of-school suspensions 0
Funding & spending
District-wide per-pupil expenditure for Tulsa, which includes Henry Zarrow International Sch.
$15,015
Per student
+6%
vs Oklahoma
Avg $14,176
-23%
vs U.S.
Avg $19,490
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.
Other Schools in This District
- Enrollment
- 1,302
- Students per teacher
- 21.7:1
- Enrollment
- 1,160
- Students per teacher
- 21.9:1
- Enrollment
- 1,083
- Students per teacher
- 20.6:1
- Enrollment
- 1,005
- Students per teacher
- 21.6:1
- Enrollment
- 995
- Students per teacher
- 31:1
Similar other schools in Tulsa
6 comparable other schools (grades Mixed) serving the same city.
Ellen Ochoa Es
Standard public school
968 students 15.4:1 students per teacher
Northwest Es
Standard public school
959 students 17:1 students per teacher
Kendall-Whittier Es
Standard public school
825 students 17.8:1 students per teacher
Southeast Es
Standard public school
817 students 18.1:1 students per teacher
Skelly Es
Standard public school
775 students 17.1:1 students per teacher
Disney Es
Standard public school
724 students 19.7:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
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 other 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 21.3:1, which is 30% higher than the Oklahoma average of 16.4:1 and 34% higher than the national average of 15.9:1.
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%. The school serves a diverse student body in Tulsa, OK.
What is the Resource Investment Index for Henry Zarrow International Sch?
Henry Zarrow International Sch has a Resource Investment Index of 42/100 (D) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.