Middlebury Union Middle School
Middlebury, VT · Middle School · Grades 6-8
Middlebury Union Middle School is a middle school in Middlebury, VT with 369 students enrolled and a 68% proficiency rate. Part of Addison Central Unified Union School District #55. NCES data from the U.S. Department of Education.
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About This School
Middlebury Union Middle School is a middle school located in Middlebury, Vermont. The school serves 369 students in grades 6-8. The student-to-teacher ratio is 11.2:1.
According to EDFacts assessment data, 68% of students meet grade-level proficiency standards in combined math and reading.
23% of students qualify for free or reduced-price lunch.
Middlebury Union Middle School is part of the Addison Central Unified Union School District #55 in Vermont.
How This School Compares
Middlebury Union Middle School has 369 students enrolled, making it larger than the average school in Addison Central Unified Union School District #55 (197 students). Its 68% proficiency rate is 5 percentage points above the district average of 63%. Compared to the Vermont state average of 57%, the school performs 11 points higher. With a 11.2:1 student-teacher ratio, it offers smaller class sizes than the national average.
Other Schools in Addison Central Unified Union School District #55
Frequently Asked Questions
Middlebury Union Middle School has 369 students enrolled in grades 6-8. The student-to-teacher ratio is 11.2:1.
According to EDFacts data, 68% of students at Middlebury Union Middle School meet grade-level proficiency standards in combined math and reading assessments.
Middlebury Union Middle School is part of the Addison Central Unified Union School District #55 in Middlebury, Vermont. 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.
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.