Summary:
ZIP code 98134 has one high school, Summit Public School: Sierra, serving grades 9–12 at 1025 S King St in Seattle. The school enrolls 214 students, making it a relatively small high school where year-to-year results may change noticeably because individual student outcomes have a larger effect on percentages. It reports a 15.2:1 student-teacher ratio, 38.32% free- or reduced-price lunch participation, and $20,964 in per-student spending for 2023–2024. Because it is the only high school in the ZIP code, there are no nearby schools in the same ZIP code for a direct comparison.
Summit Sierra’s strongest area is English language arts. In 2025–2026, 62.5% of students were proficient in all-grade ELA, about 9.7 percentage points above the Washington average. ELA proficiency also improved substantially from the prior year, rising by 10.78 points. The school’s 83.5% graduation rate was slightly higher than the state rate of 82.6%, while its 8.9% dropout rate was below the statewide 9.8% rate. These results suggest that many students remain enrolled and graduate successfully, even though academic performance varies considerably by subject.
Math and science are the most important areas for improvement. All-grade math proficiency was 26.47%, 16.64 points below the state average, and increased only slightly from the previous year. Science proficiency was 37.5%, 13.45 points below the state, and declined sharply by 11.48 points year over year. Parents may therefore want to ask about math intervention, science instruction, tutoring, course sequencing, and support for students who are behind. The school’s overall ranking has fluctuated, falling after 2023–2024 and then improving somewhat. Overall, Summit Sierra appears strongest in literacy and graduation outcomes, but it needs focused attention in math and science.
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