Summary
Henry J Kaiser High School is a grades 9–12 public high school in Honolulu, HI, enrolling 1,073 students as part of the Hawaii Department of Education, and it is one of the top-ranked comprehensive high schools in the state. In 2025–2026 it ranked 3rd out of 65 Hawaii high schools, placing in the 95th percentile with 5 stars. That continues a strong rebound: after slipping to 15th and 16th in 2021–2022 and 2022–2023, Kaiser climbed to 7th, then 4th, then 3rd.
Among nearby schools, only Kalani High School ranks clearly ahead academically, with higher proficiency in ELA (81%), math (58%), and biology (66%) and the 1st spot statewide. Kaiser generally matches or edges its other close peers. Compared with Kalaheo High School, Kaiser shows higher math proficiency (49% vs. 34%), similar ELA (68% vs. 66%), the same biology proficiency (59%), a higher graduation rate (94.0% vs. 92.0%), and lower chronic absenteeism (18.0% vs. 20.0%). Against President Theodore Roosevelt High School, Kaiser posts higher math (49% vs. 36%) and biology (59% vs. 48%) along with a higher graduation rate, though Roosevelt has lower absenteeism at 14%. The gap to President William McKinley High School, Castle High School, Kailua High School, and Kaimuki High School is much wider, with far lower ranks, weaker proficiency, lower graduation rates, and higher absenteeism.
Kaiser's strongest school-effectiveness signal is for low socio-economic status students, ranked 2 of 64 statewide in 2025–2026 at the 97th percentile with 5 stars. Special Education is the clearest relative gap: 28 of 42 in 2025–2026 (33rd percentile, 2 stars), an improvement from 1 star in 2023–2024 but still below the school's overall standing. Two caveats are worth keeping in mind: test scores are percent proficient, spending figures come from 2018–19, and small alternative or charter schools such as Hakipuu Academy, Halau Ku Mana - A New Century PCS, and Olomana School serve very different populations and are not directly comparable.
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