Sumner Middle School
Sumner, WA · Middle School · Grades 6-8
Sumner Middle School is a middle school in Sumner, WA with 677 students enrolled and a 61% proficiency rate. Part of Sumner-Bonney Lake School District. NCES data from the U.S. Department of Education.
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About This School
Sumner Middle School is a middle school located in Sumner, Washington. The school serves 677 students in grades 6-8. The student-to-teacher ratio is 20.5:1.
According to EDFacts assessment data, 61% of students meet grade-level proficiency standards in combined math and reading.
45% of students qualify for free or reduced-price lunch.
Sumner Middle School is part of the Sumner-Bonney Lake School District in Washington. The school receives Title I federal funding.
How This School Compares
Sumner Middle School has 677 students enrolled, making it smaller than the average school in Sumner-Bonney Lake School District (694 students). Its 61% proficiency rate is 5 percentage points above the district average of 56%. Compared to the Washington state average of 49%, the school performs 12 points higher. The 20.5:1 student-teacher ratio is above the national average of 16:1.
Frequently Asked Questions
Sumner Middle School has 677 students enrolled in grades 6-8. The student-to-teacher ratio is 20.5:1.
According to EDFacts data, 61% of students at Sumner Middle School meet grade-level proficiency standards in combined math and reading assessments.
Sumner Middle School is part of the Sumner-Bonney Lake School District in Sumner, 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.
Every number on this page links back to NCES Common Core of Data and EDFacts; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
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.