Summary
Portland Arthur Academy Charter School is a K–5 charter school at 7507 SE Yamhill St in Portland, Oregon, serving 165 students—the smallest school among its nearby comparison set—within Portland School District 1J, a high-performing district ranked 12th of 141 in Oregon.
In 2025–2026, the school ranked 160th of 709 Oregon elementary schools (77th percentile, 4 stars), with a consistent 4-star record since 2016–2017. Its strongest academic result is English language arts: 64.9% of all grades met proficiency, above the district’s 57.8% and the state’s 43.8%. Third-grade ELA is especially strong at 72%, and third-grade math is 68%. However, math overall is 48.6%, slightly below the district’s 50.5%, and science is 32.0%, below the district’s 45.1%. The grade-level picture shows a later drop-off: fifth-grade math falls to 28%, below both the district (49.8%) and state (32.4%), and fifth-grade science is 32%, below the district’s 47%. Compared with nearby schools, the school’s ELA is competitive with Rose City Park, Atkinson Elementary School, and Bridger Creative Science School, and higher than Lee Elementary School, Vestal Elementary School, Clark Elementary School, and Cherry Park Elementary School. Top nearby schools such as Richmond Elementary School, Laurelhurst Elementary School, and Glencoe Elementary School still post higher math and science results.
What sets the school apart is efficiency and attendance. It spends $12,228 per student, tied with Clark Elementary School for the lowest among nearby schools, where many spend $20,000–$35,000. Its student–teacher ratio is 13.7, among the lowest nearby. Chronic absenteeism was 8.0% in 2024–2025, far below the district’s 32.5% and the state’s 33.5%, and the lowest among nearby schools—next lowest is Richmond Elementary School at 15.1%. Attendance has been volatile, but the recovery to 8.0% is notable. Effectiveness rankings vary by group: in 2025–2026, male students ranked at the 85th percentile (4 stars) while female students ranked at the 69th percentile (3 stars). Overall, this is a small, 4-star, ELA-strong school with exceptional attendance and low spending; its main gaps are math and science, especially in fifth grade.
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