Summary:
Zip code 96821 in Honolulu is home to three public schools serving roughly 2,592 students, all part of the Hawaii Department of Education: Aina Haina Elementary School (PK–5, 351 students), Niu Valley Middle School (6–8, 786 students), and Kalani High School (9–12, 1,455 students). Together they form a natural K–12 feeder pattern within one ZIP code, and enrollment grows at every level — the high school holds 56.1% of all students, suggesting it draws from a wider area than the elementary school alone.
Kalani High School is the clear flagship, ranked #1 of 65 Hawaii high schools in 2025–2026 with 5 stars, a 94.0% graduation rate, and the strongest 2025–2026 ELA (81%) and math (58%) proficiency in the group — each up 7 percentage points year over year. Niu Valley Middle School is likewise a standout, ranking #4 of 85 middle schools with 5 stars, plus the lowest chronic absenteeism (11.0%) and lowest free/reduced lunch (12.21%) of the three, and the highest science proficiency at 71%.
Aina Haina Elementary School is a solid 4-star school ranked #41 of 203 elementary schools, with 68% ELA, 56% math, and 65% science. ELA and science improved slightly, but math slipped from 60% to 56%. Notably, it has the highest per-student spending ($16,423) and lowest student-teacher ratio (13.7) yet ranks lower statewide than the two secondary schools, so resources don't map neatly onto rankings. Because Kalani tests with Biology I while the other two use Science HSA, cross-level test comparisons are directional only. Overall, this is a high-performing cluster: top 2%, top 5%, and top 20% in their respective levels.
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