Summary
Seaside High School is a public school serving about 489 students in grades 9–12 in the coastal town of Seaside, Oregon, part of Seaside School District 10. For 2025–2026, it ranked 198 of 271 Oregon high schools, placing it in the 27th percentile with 1 star, while the district ranked 99 of 141 districts, at the 30th percentile with 2 stars. The school was stronger historically — 84 of 283 schools at the 70th percentile with 4 stars in 2017–2018 — and has mostly been in the bottom quartile since, with modest recent gains: 17th percentile in 2023–2024, 21st in 2024–2025, and 27th in 2025–2026.
Outcomes show where the challenges are. The graduation rate is 79.7% (state: 83.0%) and chronic absenteeism is 46.3% (state: 33.5%). OSAS proficiency is 35.6% in ELA, 14.3% in math, and 24.2% in science, versus state rates of 43.8%, 32.9%, and 30.6%. Per-student spending is $21,170, with a student/teacher ratio of 17.2. Among nearby schools, Seaside outranks Knappa High School (14th percentile) but trails Astoria Senior High School (37th) and especially Warrenton High School, the nearby standout at 74th percentile with 4 stars. Its math proficiency is above Knappa's under-5% figure but below Astoria, Warrenton, and the state, and it spends more per student than Astoria and Warrenton while having higher absenteeism than both, though slightly lower than Knappa.
Subgroup rankings reveal internal differences: Hispanic students ranked in the 4th percentile with 0 stars in 2025–2026 and Special Education students were at the 3rd percentile in 2023–2024, both well below the school overall, while low-SES students (42nd percentile) and female students (27th, up from 10th) rank higher. Overall, Seaside is a larger coastal high school with real math and attendance challenges and uneven results across student groups, but with signs of modest recent improvement.
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