Summary:
ZIP code 97148, in Yamhill, Oregon, is served by a single public high school — Yamhill Carlton High School — a grades 9–12 campus of 279 students in the Yamhill Carlton School District 1. With only one high school in the area, there are no local peers to compare against, so the most useful benchmarks are the district and the state. This school is also the district's only high school, which is why its grade-11 results are identical to the district's grade-11 results.
Reading and writing are the clear strength. At 51% proficient in English language arts, the school beats Oregon's 43.8% and its own district's all-grades figure of 39.1%. Math is the opposite story: 18.8% proficient, well below the state's 32.9% across all grades and 22.9% in grade 11, and even below the district's 21.7%. Science, at 20.8%, also trails the state (30.6% all grades, 33.8% in grade 11). The roughly 32-point spread between ELA and math is unusually wide, suggesting a subject-specific weakness in math and science rather than a broadly struggling school.
Other measures are mixed. The graduation rate of 84.4% is slightly above the state's 83.0%, and chronic absenteeism of 31.3% is a bit better than the state's 33.5% — though it is about 9 points worse than the district's 22.2%, pointing to an attendance issue specific to the high school. About half of students (50.54%) qualify for free or reduced lunch, and the school spends $20,849 per student with a 16.7-to-1 student-teacher ratio. Notably, the school's state ranking fell from the 77th percentile (4 stars) in 2024-25 to the 42nd percentile (2 stars) in 2025-26 — a drop of 95 rank positions. With roughly 70 students per grade, that swing may reflect a single cohort rather than a lasting trend, so it is worth watching over another year.
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