Mill Middle School
Williamsville, NY · Middle School · Grades 5-8
Mill Middle School is a middle school in Williamsville, NY with 774 students enrolled and a 68% proficiency rate. Part of Williamsville Central School District. NCES data from the U.S. Department of Education.
Get Mill Middle School's new scores when they post
We'll email you the moment Mill Middle School changes. No spam — only real updates.
About This School
Mill Middle School is a middle school located in Williamsville, New York. The school serves 774 students in grades 5-8. The student-to-teacher ratio is 10.5:1.
According to EDFacts assessment data, 68% of students meet grade-level proficiency standards in combined math and reading.
28% of students qualify for free or reduced-price lunch.
Mill Middle School is part of the Williamsville Central School District in New York.
How This School Compares
Mill Middle School has 774 students enrolled, making it larger than the average school in Williamsville Central School District (740 students). Its 68% proficiency rate is 5 percentage points above the district average of 63%. Compared to the New York state average of 47%, the school performs 21 points higher. With a 10.5:1 student-teacher ratio, it offers smaller class sizes than the national average.
Frequently Asked Questions
Mill Middle School has 774 students enrolled in grades 5-8. The student-to-teacher ratio is 10.5:1.
According to EDFacts data, 68% of students at Mill Middle School meet grade-level proficiency standards in combined math and reading assessments.
Mill Middle School is part of the Williamsville Central School District in Williamsville, New York. 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.