Atfalati Ridge
Test scores
OSAS 2024-25 . % ProficientWhat this means: On the OSAS, Oregon's statewide test, about 61 of every 100 students at this school read and write at grade level and about 57 of 100 do math at grade level. Across all Oregon schools, those numbers are about 43 and 32. Reading and writing scores are down about 6 points since 2023, while math scores are down about 4 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 59% of students here test proficient in math and reading, well above the roughly 35% typical for Oregon schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 24 points, placing it in Oregon's top 10%.
About Atfalati Ridge
Located at 29174 NW King St, in North Plains, Oregon, Atfalati Ridge is a small elementary-level community that hosts 209 students (grades K through 6), operated by Hillsboro SD 1J. That puts it 35% leaner than the typical public school in Oregon, which averages around 321 students.
Atfalati Ridge is one of 37 schools operated by Hillsboro SD 1J, a district that works with 18,465 students overall.
On demographics, Atfalati Ridge shows that the largest single group is White at 52%, but no single group is in the majority. The remainder looks like 17% Asian, 13% multiracial, 12% Hispanic, 5% Black. The wider county runs roughly 64% White, putting the school's mix considerably less White than the area baseline.
In terms of school funding signals, Atfalati Ridge shows 13 full-time-equivalent teachers, putting the student-to-teacher ratio at about 15.7:1. The state averages around 16.5:1, so this campus is tighter than the state norm typical. Around 71% of the student body qualifies for free or reduced-price meals, a commonly cited indicator of low-income enrollment. By comparison, Washington County runs at roughly 57%, so the school's eligibility rate is higher than the surrounding baseline.
On a demographically-adjusted basis, Atfalati Ridge ranks in the top 10% of Oregon public schools. The BeatsExpectations model, a per-state regression of composite proficiency on FRL share, predicts schools with this student profile to land around 34.9%; Atfalati Ridge posts 59.2%, +24.3 points above that line.
In the surrounding community, census data for Washington County shows median household earnings sit near $107,772, about 48% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 5%. Atfalati Ridge is one of 136 public schools in Washington County (combined enrollment of about 79,469 students).
Nearest neighbor: North Plains Elementary School, around 1.5 miles off. Within five miles, there are 8 other public schools. Among the 9 schools in that immediate cluster with test data (this one included), Atfalati Ridge ranks 1st on composite proficiency, ahead of the local average of 36.2%.
The school occupies an outlying site.
Within the allk12 community for this school, members of the Atfalati Ridge community share and discuss classroom updates, athletics, and weather closures. Members of the school community can share what they know.
Washington County at a glance
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