Sammamish Senior High
Bellevue, WA · High School · Grades 9-12
Sammamish Senior High is a high school in Bellevue, WA with 1,275 students enrolled and a 64% proficiency rate. Part of Bellevue School District. NCES data from the U.S. Department of Education.
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About This School
Sammamish Senior High is a high school located in Bellevue, Washington. The school serves 1,275 students in grades 9-12. The student-to-teacher ratio is 19.3:1.
According to EDFacts assessment data, 64% of students meet grade-level proficiency standards in combined math and reading. The school reports a 76% graduation rate.
39% of students qualify for free or reduced-price lunch.
Sammamish Senior High is part of the Bellevue School District in Washington.
How This School Compares
Sammamish Senior High has 1,275 students enrolled, making it larger than the average school in Bellevue School District (597 students). Its 64% proficiency rate is 6 percentage points above the district average of 59%. Compared to the Washington state average of 49%, the school performs 15 points higher.
Frequently Asked Questions
Sammamish Senior High has 1,275 students enrolled in grades 9-12. The student-to-teacher ratio is 19.3:1.
According to EDFacts data, 64% of students at Sammamish Senior High meet grade-level proficiency standards in combined math and reading assessments.
Sammamish Senior High has a 76% graduation rate, measuring the percentage of students who graduate within four years.
Sammamish Senior High is part of the Bellevue School District in Bellevue, 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.
this entity is one of the data points covered by this site’s U.S. K-12 school outcomes and enrollment dataset. The detail above comes directly from NCES Common Core of Data and EDFacts; the context that follows situates the headline numbers against the broader distribution across U.S. public schools and districts.
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.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public schools and districts with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: NCES Common Core of Data, 2026.