Enrollment
2,937
Virginia · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 510126000059
Chantilly High — Chantilly, VA
Federal NCES profile for Chantilly High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 57/100.
👥 Class size 35
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 63
📋 Attendance 58
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Fairfax County Public Schools · Virginia
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
181.0
Federal CCD staff survey
Students per teacher
16.2:1
vs 14:1 Virginia avg
+16% vs state
Free-lunch eligible
16.8%
vs 59.9% Virginia avg
-72% vs state
Student-teacher ratio in context
How Chantilly High compares with Virginia and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Chantilly High reports 2,937 enrolled students to the National Center for Education Statistics (NCES) alongside 181.0 full-time-equivalent teachers, producing a 16.2:1 student-teacher ratio. That figure sits 16% above the Virginia state mean of 14:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 2% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 16.8% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 72% below the Virginia average and 68% below the national baseline. The school offers 30 Advanced Placement courses, a stronger academic pipeline indicator than enrollment alone. Counselor coverage works out to roughly 184 students per counselor, meeting the American School Counselor Association recommendation of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 16.7% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Fairfax County Public Schools spends $19,816 per pupil district-wide, above the Virginia average of $16,211 and above the national average of $19,490. Revenue comes 66.6% from local sources (property taxes), 23.3% from the state, and 10.1% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 57/100 (C), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Chantilly High compares
Cross-validating school-level NCES values against Virginia state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Virginia | Virginia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.2:1 | ▲ 16% | 14:1 | 15.9:1 |
| Free-lunch eligible | 16.8% | ▼ 72% | 59.9% | 51.8% |
| Enrollment | 2,937 | top 100% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
16.8%
free-lunch eligible
— 72% below the Virginia average of 59.9%
Below the 40% Title I threshold — federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
16.2:1
students per teacher
— 16% above state mean
Top 86% in Virginia — lower ratio than 14% of state schools
Between 15:1 and 20:1 — in line with the typical U.S. public-school staffing range.
Engagement
16.7%
chronically absent (missed 10%+ of school days)
Between 10–20% — above the pre-pandemic baseline of ~15% nationally but within the current U.S. range.
Funding equity
$19,816
per pupil, district-wide
— above Virginia avg of $16,211
Above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors16.0 FTE
Per 184 students — the combined health-and-guidance staffing load for this school.
Discipline context
89
in-school suspensions + 35 out-of-school
Suspension rate: 3.0 per 100 students. Combined in-school and out-of-school rate: 4.2 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Overview
Enrollment 2,937 Top 100% in Virginia — larger than 0% of 1,869 state schools
Teachers (FTE) 181.0
Students per teacher 16.2:1 +16% vs state
Free-lunch eligible 16.8% -72% vs state
NCES ID 510126000059
Student demographics
Asian 38.6%
White 34.0%
Hispanic or Latino 15.9%
African American 6.0%
Two or More 5.1%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.1%
Largest group: Asian at 38.6% of enrollment.
Programs & staff
AP courses offered 30
Counselors (FTE) 16.0
Students per counselor 184:1
Discipline & special education
Chronically absent 16.7%
In-school suspensions 89
Out-of-school suspensions 35
Expulsions 2
Funding & spending
District-wide per-pupil expenditure for Fairfax County Public Schools, which includes Chantilly High.
$19,816
Per student
+22%
vs Virginia
Avg $16,211
+2%
vs U.S.
Avg $19,490
Revenue mix
Local 66.6%
State 23.3%
Federal 10.1%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
Other Schools in This District
- Enrollment
- 4,411
- Students per teacher
- 16.8:1
- Enrollment
- 3,710
- Students per teacher
- 16.6:1
- Enrollment
- 3,256
- Students per teacher
- 16.7:1
- Enrollment
- 2,799
- Students per teacher
- 17.6:1
- Enrollment
- 2,737
- Students per teacher
- 16.8:1
Similar high schools in Chantilly
1 comparable high schools (grades 9-12) serving the same city.
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Chantilly High
How many students attend Chantilly High?
Chantilly High has 2,937 students enrolled. It is a high school in Chantilly, VA.
What is the student-teacher ratio at Chantilly High?
The student-teacher ratio at Chantilly High is 16.2:1, which is 16% higher than the Virginia average of 14:1 and 2% higher than the national average of 15.9:1.
What percentage of students receive free lunch at Chantilly High?
16.8% of students at Chantilly High are eligible for free lunch, compared to the Virginia average of 59.9%.
What is the racial and ethnic makeup of Chantilly High?
The largest demographic group at Chantilly High is Asian at 38.6%. The school serves a diverse student body in Chantilly, VA.
What is the Resource Investment Index for Chantilly High?
Chantilly High has a Resource Investment Index of 57/100 (C) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.