Vashon Island High School
Vashon, WA · High School · Grades 9-12
Vashon Island High School is a high school in Vashon, WA with 509 students enrolled and a 64% proficiency rate. Part of Vashon Island School District. NCES data from the U.S. Department of Education.
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About This School
Vashon Island High School is a high school located in Vashon, Washington. The school serves 509 students in grades 9-12. The student-to-teacher ratio is 21.2:1.
According to EDFacts assessment data, 64% of students meet grade-level proficiency standards in combined math and reading. The school reports a 86% graduation rate.
24% of students qualify for free or reduced-price lunch.
Vashon Island High School is part of the Vashon Island School District in Washington.
How This School Compares
Vashon Island High School has 509 students enrolled, making it larger than the average school in Vashon Island School District (308 students). Its 64% proficiency rate is 4 percentage points above the district average of 61%. Compared to the Washington state average of 49%, the school performs 15 points higher. The 21.2:1 student-teacher ratio is above the national average of 16:1.
Other Schools in Vashon Island School District
Frequently Asked Questions
Vashon Island High School has 509 students enrolled in grades 9-12. The student-to-teacher ratio is 21.2:1.
According to EDFacts data, 64% of students at Vashon Island High School meet grade-level proficiency standards in combined math and reading assessments.
Vashon Island High School has a 86% graduation rate, measuring the percentage of students who graduate within four years.
Vashon Island High School is part of the Vashon Island School District in Vashon, Washington. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
For this entity, the underlying data on this page comes from NCES Common Core of Data and EDFacts. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
The methodology behind every numeric value on this page is publicly documented on the NCES Common Core of Data and EDFacts portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. public schools and districts. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: NCES Common Core of Data, 2026.