Summit Public School: Sierra
Test scores
Smarter Balanced + WCAS 2024-25 . % Met or Exceeded StandardWhat this means: On the Smarter Balanced + WCAS, Washington's statewide test, about 50 of every 100 students at this school read and write at grade level and about 23 of 100 do math at grade level. Across all Washington schools, those numbers are about 58 and 51. Reading and writing scores are down about 16 points since 2017, while math scores are down about 13 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 45% of students here test proficient in math and reading, compared with the roughly 55% typical for Washington 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 Washington's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About Summit Public School: Sierra
Summit Public School: Sierra is a four-year high school of very small scale in Seattle, Washington, part of Summit Public School: Sierra, hosting 214 students in grades 9 through 12. Compared to the state average of about 573 students per school, that is 63% smaller than typical.
Summit Public School: Sierra is the operating authority for Summit Public School: Sierra, handling staffing, calendars, and reporting to the state department of education.
In terms of who attends, Summit Public School: Sierra reports that the most-represented group is White (41%), with the rest of the student body spread across multiple groups; the rest looks like 26% Black, 13% Hispanic, 12% multiracial, 4% Asian. That is meaningfully less White than the county at large, where the share is closer to 55%.
Looking at the economic backdrop, Summit Public School: Sierra lists 14 full-time-equivalent teachers, putting the student-to-teacher ratio at about 15.3:1. The state averages around 21.6:1, so this campus is tighter than the state norm typical. About 38% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.
On a residual basis (actual vs predicted given the student mix), Summit Public School: Sierra sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 54.5%; this one delivers 45.4%.
In the surrounding community, ACS estimates for King County put the typical household earns roughly $124,746 per year, about 57% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 5%. In all, King County runs 544 public schools (combined enrollment of about 278,492 students), of which Summit Public School: Sierra is one.
Nearest neighbor: Bailey Gatzert Elementary School, around 0.3 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Summit Public School: Sierra at 4th of 6; the average score across the group is 52.4%.
Summit Public School: Sierra operates from an inner-city location. Summit Public School: Sierra operates as a public charter school, meaning it is publicly funded but governed independently of the surrounding district's traditional schools.
Looking at the recent track record. Summit Public School: Sierra's enrollment has decreased 28% since 2018, when it stood at 297 (now 214). Over the same period, the White share edged up from 26% to 41%. Class-load math has narrowed: from 148.5:1 in 2018 to 15.3:1 in 2025.
Inside the community feed, the page collects discussion, questions, and updates around pickup logistics, teacher feedback, and after-school programs. Members of the school community can share what they know.
King County at a glance
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