Tumwater Middle School
Portland, OR · Middle School · Grades 6-8
Tumwater Middle School is a middle school in Portland, OR with 998 students enrolled and a 74% proficiency rate. Part of Beaverton SD 48J. NCES data from the U.S. Department of Education.
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About This School
Tumwater Middle School is a middle school located in Portland, Oregon. The school serves 998 students in grades 6-8. The student-to-teacher ratio is 23.2:1.
According to EDFacts assessment data, 74% of students meet grade-level proficiency standards in combined math and reading.
15% of students qualify for free or reduced-price lunch.
Tumwater Middle School is part of the Beaverton SD 48J in Oregon.
How This School Compares
Tumwater Middle School has 998 students enrolled, making it larger than the average school in Beaverton SD 48J (684 students). Its 74% proficiency rate is 19 percentage points above the district average of 55%. Compared to the Oregon state average of 48%, the school performs 26 points higher. The 23.2:1 student-teacher ratio is above the national average of 16:1.
Frequently Asked Questions
Tumwater Middle School has 998 students enrolled in grades 6-8. The student-to-teacher ratio is 23.2:1.
According to EDFacts data, 74% of students at Tumwater Middle School meet grade-level proficiency standards in combined math and reading assessments.
Tumwater Middle School is part of the Beaverton SD 48J in Portland, Oregon. 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.
The this entity record above pulls directly from NCES Common Core of Data and EDFacts. What follows is the per-entity context — how this entity sits in the broader U.S. K-12 school outcomes and enrollment distribution and which underlying factors drive the headline numbers.
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.