Summary
Kauai High School is a public high school in Lihue, HI, serving grades 9–12 in the Hawaii Department of Education, with 1,016 students, making it the largest of the three local high schools compared here—slightly larger than Kapaa High School and substantially larger than Waimea High School.
In 2025–2026, Kauai High School ranked 40th of 65 Hawaii high schools, at the 38th percentile with 2 stars, down from 33rd of 67 and the 51st percentile in 2023–2024; earlier it reached the 67th percentile. Its 2025–2026 test scores were 52% proficient in English Language Arts, 21% in Mathematics, and 19% in Biology I. Math has stayed near 20% for several years, while ELA, though still much higher than Math, has cooled from 58.5% in 2023–2024 to 52% in 2024–2025 and 2025–2026. Locally, Waimea High School posted the stronger 2025–2026 rank percentile (60th), ELA (57%), and Math (27%), while Kapaa High School had lower ELA (28%) and Math (15%) but higher Biology I (31%). Kauai High School was second among the three in graduation rate (92.0%, up from 89.4%), chronic absenteeism (28.0%, better than Kapaa’s 39.0% but worse than Waimea’s 22.0%), and ELA/Math. It has the lowest student-teacher ratio (14.4) and the lowest per-student spending ($15,149 in 2018–2019) in this group.
Overall, Kauai High School is a mid-pack local school with an uneven recent trajectory. Its graduation rate is solid and improving, and its low-SES subgroup rank (38th percentile) matches its overall rank, but Math proficiency remains a persistent weakness, chronic absenteeism is still a meaningful challenge, and Biology I became the weakest local result in 2025–2026. Parents may want to watch whether Math rises above its roughly 20% plateau, whether the Biology drop continues, whether absenteeism improves, and whether recent gains for Special Education and English Language Learner students can be sustained. The school remains stronger than Kapaa High School in ELA and Math, but it has recently been overtaken by Waimea High School after leading the local group in the two prior comparison years.
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