Portland Arthur Academy Charter School

Set in Portland, Oregon, Portland Arthur Academy Charter School is a cozy primary school, run under Portland SD 1J. It educates 165 students across grades K through 5. Enrollment runs roughly 49% smaller than the state mean of about 321.

Across the 86 schools in Portland SD 1J (41,894 students total), Portland Arthur Academy Charter School accounts for its share of the district's footprint.

For racial and ethnic makeup, Portland Arthur Academy Charter School logs that the largest single group is White at 44%, but no single group is in the majority; the rest comes out to 26% Asian, 12% Black, 10% Hispanic, 7% multiracial. The wider county runs roughly 68% White, putting the school's mix noticeably less White than the area baseline.

Looking at the economic backdrop, Portland Arthur Academy Charter School lists 12 full-time-equivalent teachers, putting the student-to-teacher ratio at about 13.8:1. Statewide, the average ratio sits near 16.5:1, putting Portland Arthur Academy Charter School tighter than the state norm the norm. Roughly 42% of students at Portland Arthur Academy Charter School qualify for free or reduced-price lunch, often used as a Title I proxy. That share is below Multnomah County's rate of about 75%.

Adjusting for the school's free-and-reduced-lunch share, Portland Arthur Academy Charter School tracks the demographic baseline. The model predicts 46.3% given the school's FRL share; actual proficiency is 55.8%.

Across the wider county, census data for Multnomah County shows the typical household earns roughly $88,766 per year, roughly 49% of adults have completed at least a four-year degree, and roughly 7% of residents live below the federal poverty line. Across Multnomah County's 169 public schools (combined enrollment of about 81,096 students), Portland Arthur Academy Charter School is one campus in the mix.

Bridger Creative Science School is the nearest neighboring public school, about 0.5 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Portland Arthur Academy Charter School. On composite proficiency, Portland Arthur Academy Charter School comes 3rd of 8 in the immediate cluster, ahead of the nearby-schools average of 46.1%.

Portland Arthur Academy Charter School operates from an inner-city location. As a public charter, Portland Arthur Academy Charter School runs on public funding but with greater curricular and operational autonomy than a typical district school.

Trend over the last 7 years. Over the past 7-year window, the student count decreased 6%: 175 students in 2018 compared to 165 in 2025. Over the same period, the White share edged down from 61% to 44%. Class-load math has pulled in: from 27.3:1 in 2018 to 13.8:1 in 2025.

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