Community prompt from u/allk12. Replies below.
Sandstone Middle School
School pathway
Test scores
OSAS 2024-25 . % ProficientWhat this means: On the OSAS, Oregon's statewide test, about 48 of every 100 students at this school read and write at grade level and about 29 of 100 do math at grade level. Across all Oregon schools, those numbers are about 43 and 32. Reading and writing scores are up about 2 points since 2023, while math scores are up about 4 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 32% of students here test proficient in math and reading, compared with the roughly 27% typical for Oregon schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Oregon's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About Sandstone Middle School
Sandstone Middle School is a mid-tier middle-grades school in Hermiston, Oregon, one of the schools within Hermiston SD 8. The school works with 609 students in grades 6 through 8. By comparison, Oregon's public schools average about 494 students each, so Sandstone Middle School sits 23% bigger than that benchmark.
Hermiston SD 8 runs 9 schools in total, collectively educating 5,320 students. Sandstone Middle School is one of those campuses.
On the student-mix side, Sandstone Middle School lists that the largest single group is Hispanic, at 59% of enrollment. Beyond that, the school shows 35% White, 4% multiracial. The wider county runs roughly 30% Hispanic, putting the school's mix considerably more Hispanic than the area baseline.
Looking at school resources, Staff filings list 31 full-time-equivalent teachers, which works out to roughly 19.6:1 students per teacher. The state averages about 19.3:1, putting this campus right in line with peers. About 92% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator.
On a demographically-adjusted basis, Sandstone Middle School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 26.9%, the actual is 31.7%, a residual of +4.8 points.
In the surrounding community, Umatilla County reports that the typical household earns roughly $67,728 per year, roughly 18% of adults have completed at least a four-year degree, and roughly 10% of residents live below the federal poverty line. In all, Umatilla County runs 35 public schools (combined enrollment of about 13,143 students), of which Sandstone Middle School is one.
Nearest neighbor: Highland Hills Elementary School, around 0.5 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Sandstone Middle School comes 6th of 9 in the immediate cluster, behind the nearby-schools average of 34.2%.
The campus sits in a small-town setting.
Over the past 7-year window. Over the past 7-year window, the student count rose 12%: 544 students in 2018 compared to 609 in 2025. Over the same period, the White share decreased from 41% to 35%.
On this page, the feed for Sandstone Middle School typically covers pickup logistics, teacher feedback, and after-school programs. The community welcomes input from current and former families.
Umatilla County at a glance
View full county profileQuick facts
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- Highland Hills Elementary School0.5 mi · 308
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- West Park Elementary School1.6 mi · 408