Stone Bridge High
Ashburn, VA · High School · Grades 9-12
Stone Bridge High is a high school in Ashburn, VA with 1,701 students enrolled and a 68% proficiency rate. Part of Loudoun County Public Schools. NCES data from the U.S. Department of Education.
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About This School
Stone Bridge High is a high school located in Ashburn, Virginia. The school serves 1,701 students in grades 9-12. The student-to-teacher ratio is 13.0:1.
According to EDFacts assessment data, 68% of students meet grade-level proficiency standards in combined math and reading. The school reports a 84% graduation rate.
16% of students qualify for free or reduced-price lunch.
Stone Bridge High is part of the Loudoun County Public Schools in Virginia.
How This School Compares
Stone Bridge High has 1,701 students enrolled, making it larger than the average school in Loudoun County Public Schools (851 students). Its 68% proficiency rate is 10 percentage points above the district average of 58%. Compared to the Virginia state average of 46%, the school performs 23 points higher. With a 13.0:1 student-teacher ratio, it offers smaller class sizes than the national average.
Other Schools in Loudoun County Public Schools
Frequently Asked Questions
Stone Bridge High has 1,701 students enrolled in grades 9-12. The student-to-teacher ratio is 13.0:1.
According to EDFacts data, 68% of students at Stone Bridge High meet grade-level proficiency standards in combined math and reading assessments.
Stone Bridge High has a 84% graduation rate, measuring the percentage of students who graduate within four years.
Stone Bridge High is part of the Loudoun County Public Schools in Ashburn, Virginia. 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.
For this entity, the underlying data on this page comes from NCES Common Core of Data and EDFacts. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
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.
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.