Chantilly High
Chantilly, VA · High School · Grades 9-12
Chantilly High is a high school in Chantilly, VA with 2,937 students enrolled and a 68% proficiency rate. Part of Fairfax County Public Schools. NCES data from the U.S. Department of Education.
Chantilly High is a high school in Chantilly, VA that enrolls 2,937 students in grades 9-12, putting it among the larger public campuses in the Fairfax County Public Schools. That headcount is above the 904-student average for schools in the district.
EDFacts assessment data puts 68% of students at or above grade level in combined math and reading, a little above the national midpoint where roughly half of tested students clear the bar. That is 11 points above the 56% average for the Fairfax County Public Schools. Against the 46% Virginia statewide average, the school sits 22 points higher.
Over the last three reported years the district proficiency rate this school inherits has risen by about 35 points. As a high school, it reports a 83% adjusted-cohort graduation rate, the share of first-time ninth-graders who earn a regular diploma within four years.
The student-teacher ratio is 16.2 to 1, close to the U.S. average of about 16 to 1. A relatively low 20% of students qualify for free or reduced-price lunch.
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About This School
Chantilly High is a high school located in Chantilly, Virginia. The school serves 2,937 students in grades 9-12. The student-to-teacher ratio is 16.2:1.
According to EDFacts assessment data, 68% of students meet grade-level proficiency standards in combined math and reading. The school reports a 83% graduation rate.
20% of students qualify for free or reduced-price lunch.
Chantilly High is part of the Fairfax County Public Schools in Virginia.
How This School Compares
Chantilly High has 2,937 students enrolled, making it larger than the average school in Fairfax County Public Schools (904 students). Its 68% proficiency rate is 11 percentage points above the district average of 56%. Compared to the Virginia state average of 46%, the school performs 22 points higher.
Frequently Asked Questions
Chantilly High has 2,937 students enrolled in grades 9-12. The student-to-teacher ratio is 16.2:1.
According to EDFacts data, 68% of students at Chantilly High meet grade-level proficiency standards in combined math and reading assessments.
Chantilly High has a 83% graduation rate, measuring the percentage of students who graduate within four years.
Chantilly High is part of the Fairfax County Public Schools in Chantilly, 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.
Source: NCES Common Core of Data, 2026.