Portland Arthur Academy Charter School

Portland Arthur Academy Charter School serves 164 students in kindergarten through fifth grade. Its composite score of 9.1 out of 10 — rated Exceptional — places it among Oregon's strongest elementary programs. The school ranks 39th among 1,226 public schools statewide, outperforming 97 percent of Oregon schools across the board.

Academic performance drives much of that standing. Arthur Academy posts a 9.3 academic score and a 9.0 growth score, meaning students don't just arrive at high levels — they continue advancing at an accelerated rate. That combination of attainment and trajectory is what separates schools at this tier from peers that score well on only one dimension.

The charter operates with a student-teacher ratio of 16.4 to one, keeping class sizes manageable for a school of 164. Within Portland specifically, it ranks 26th out of 148 public schools — and 36th among 689 Oregon elementary schools — a consistent top-tier position no matter how the comparison is sliced. For families comparing Portland-area elementary options, Arthur Academy's track record across multiple independent metrics makes a strong case at every grade level from kindergarten through fifth.

With an enrollment of 164 students, Portland Arthur Academy Charter School is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.

Portland Arthur Academy Charter School is a charter school — a publicly funded school that operates with more autonomy than traditional district schools. Charter schools often have distinct educational models or specialties. Parents should understand the school's specific mission, enrollment process, and how its approach differs from nearby district options.