Summary:
ZIP code 97603 in Klamath Falls, Oregon contains three high schools serving grades 9–12 — Henley High School, Mazama High School, and Klamath Learning Center — with a combined enrollment of about 1,590 students in a high-poverty area where free/reduced lunch rates run near 92%.
Henley and Mazama, both part of Klamath County School District, enroll roughly 88.7% of the students here and both rank in the top quarter of Oregon high schools in 2025–26. Henley ranks 33rd of 271 (88th percentile, 4 stars), with the highest English language arts (69.5%) and math (33.1%) proficiency and the lowest chronic absenteeism (23.2%) in the set, plus a 97.7% graduation rate. Mazama ranks 62nd of 271 (77th percentile, 4 stars) after climbing from 159th three years ago, and posts the highest graduation rate (97.9%) and science proficiency (56.3%), along with the lowest student-teacher ratio at 15.5. Notably, both schools outperform their district, which ranks 78 of 141 with 2 stars.
Klamath Learning Center, in Klamath Falls City Schools, has improved dramatically — from 252nd to 119th and from 0 to 3 stars — and its ELA proficiency of 64.7% beats Mazama and the state. But its graduation rate is 53.8%, chronic absenteeism is 72.6%, science proficiency is 22.2%, and its student-teacher ratio is 36, all the most challenging figures in this group. Across all three schools, ELA is a shared strength: each exceeds the state's 43.8% rate. Math is uneven, with only Henley above the state's 32.9%, while Mazama (22.2%) and Klamath Learning Center (21.4%) trail it.
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