Enrollment
893
Hawaii · 2024-25 NCES data
Middle school (grades 6-8) · Wailuku, HI
Federal NCES profile for Iao Intermediate School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
The verdict
Iao Intermediate School earns 36/100 on the Resource Investment Index, with class sizes larger than 85% of Hawaii schools.
Iao Intermediate School has class sizes larger than 85% of Hawaii schools. Computed live against every Hawaii school reporting to NCES.
By Resource Investment Index, Iao Intermediate School ranks #2 of 5 public schools in Wailuku, HI.
NCES ID 150003000059 Verify on NCES CCD record →
Enrollment
893
Hawaii · 2024-25 NCES data
Teachers (FTE)
54.0
Federal CCD staff survey
Students per teacher
16.5:1
vs 14.1:1 Hawaii avg
+17% vs state
Free-lunch eligible
37.8%
vs 40.0% Hawaii avg
-6% vs state
How Iao Intermediate School compares with Hawaii and U.S. medians
Slightly above state median
16.5:1 - 2.4 above the Hawaii state median of 14.1:1, indicating larger average class loads than typical schools in the state.
Iao Intermediate School is a large middle school in Wailuku, Hawaii, enrolling 893 students.
Class loads run somewhat heavier than typical: 16.5:1 puts it in the larger third of Hawaii schools by student-teacher ratio.
Its free-meal eligibility rate of 37.8% lands close to the Hawaii typical range, neither a high- nor low-need campus by this measure.
Enrollment of 893 puts it in the larger third of Hawaii schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 295 scored Hawaii schools.
Against 56 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #23.
Its student body is led by Native Hawaiian / Pacific Islander (32%) and Hispanic or Latino (23%) (diversity index 76/100).
Counselor coverage runs a bit thin, about 298 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 40.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 194 in- and out-of-school suspensions were reported for 893 students in the 2021-22 Civil Rights Data Collection.
Hawaii Department of Education also operates James Campbell High School (2,890 students) and Waipahu High School (2,538 students) alongside Iao Intermediate School.
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
Iao Intermediate School on the metrics families compare, against Hawaii and U.S. means.
| Metric | This school | vs Hawaii | Hawaii avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.5:1 | ▲ 17% | 14.1:1 | 15.7:1 |
| Free-lunch eligible | 37.8% | ▼ 6% | 40.0% | 51.7% |
| Enrollment | 893 | top 14% | - | - |
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: Native Hawaiian / Pacific Islander at 32.0% of enrollment.
Simpson diversity index - at 76.4, Iao Intermediate School is more mixed than the Hawaii school average of 69.6.
District-wide per-pupil expenditure for Hawaii Department of Education, which includes Iao Intermediate School.
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 |
|---|---|---|---|
| James Campbell High School | Larger | Lower economic need | Similar S:T ratio |
| Waipahu High School | Larger | Similar economic need | Similar S:T ratio |
| Mililani High School | Larger | Lower economic need | Similar S:T ratio |
| Governor Wallace Rider Farrington High School | Larger | Similar economic need | Lower S:T ratio |
| Moanalua High School | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to Iao Intermediate School's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Hawaii, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Iao Intermediate School'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.
Iao Intermediate School has 893 students enrolled. It is a middle school in Wailuku, HI.
The student-teacher ratio at Iao Intermediate School is 16.5:1, which is 17% higher than the Hawaii average of 14.1:1 and 5% higher than the national average of 15.7:1.
37.8% of students at Iao Intermediate School are eligible for free lunch, compared to the Hawaii average of 40.0%.
The largest demographic group at Iao Intermediate School is Native Hawaiian / Pacific Islander at 32.0% of enrollment, in Wailuku, HI. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 76.4/100.
Iao Intermediate School has a Resource Investment Index of 36/100 (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, Iao Intermediate School ranks #2 of 5 public schools in Wailuku, HI. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Wailuku on the city page.
Iao Intermediate School earns 36/100 on the Resource Investment Index, with class sizes larger than 85% of Hawaii 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 Iao Intermediate School, Hawaii Department of Education also operates James Campbell High School (2,890 students), Waipahu High School (2,538 students), and Mililani High School (2,382 students). See the Hawaii Department of Education 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, “Iao Intermediate School, Wailuku HI.” 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/iao-intermediate-school-hi
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