Enrollment
1,599
Virginia · 2024-25 NCES data
Other / mixed grade configuration · Ashburn, VA
Federal NCES profile for Rock Ridge High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
The verdict
Rock Ridge High earns 43/100 on the Resource Investment Index, with class sizes larger than 84% of Virginia schools.
Rock Ridge High has class sizes larger than 84% of Virginia schools. Computed live against every Virginia school reporting to NCES.
By Resource Investment Index, Rock Ridge High ranks #16 of 16 schools in Ashburn, VA.
NCES ID 510225002969 Verify on NCES CCD record →
Enrollment
1,599
Virginia · 2024-25 NCES data
Teachers (FTE)
99.0
Federal CCD staff survey
Students per teacher
16.2:1
vs 13.9:1 Virginia avg
+17% vs state
Free-lunch eligible
17.0%
vs 57.6% Virginia avg
-70% vs state
How Rock Ridge High compares with Virginia and U.S. medians
Slightly above state median
16.2:1 - 2.3 above the Virginia state median of 13.9:1, indicating larger average class loads than typical schools in the state.
Rock Ridge High is a lower-poverty, large combined-grade school in Ashburn, Virginia, enrolling 1,599 students.
Class loads run somewhat heavier than typical: 16.2:1 puts it in the larger third of Virginia schools by student-teacher ratio.
Comparatively few students face economic hardship here, 17.0% free-meal eligibility runs 70% below the Virginia average.
By headcount it is one of the larger campuses in Virginia, bigger than 94% of state schools at 1,599 students.
Its Resource Investment Index lands in the lower third of 1,868 scored Virginia schools.
Among 117 similarly sized, similarly resourced-need Virginia schools statewide, it ranks #103, in the lower tier once campus size and economic need are matched.
Its student body is led by Asian (54%) and White (18%) (diversity index 65/100).
Counselor coverage runs a bit thin, about 320 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
12.2% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Loudoun County Public Schools spends $18,953 per pupil, 29% above the Virginia average, a better-resourced district than most.
Among Ashburn's public schools, it stands alongside Madison's Trust Elementary (1,004 students): Rock Ridge High is larger than that campus by headcount and runs leaner classes (16.2:1 vs 17:1).
Loudoun County Public Schools also operates Independence High (2,166 students) and Lightridge High (2,030 students) alongside Rock Ridge High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Rock Ridge High on the metrics families compare, against Virginia and U.S. means.
| Metric | This school | vs Virginia | Virginia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.2:1 | ▲ 17% | 13.9:1 | 15.7:1 |
| Free-lunch eligible | 17.0% | ▼ 70% | 57.6% | 51.7% |
| Enrollment | 1,599 | top 6% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: Asian at 54.4% of enrollment.
Simpson diversity index - at 64.5, Rock Ridge High is more mixed than the Virginia school average of 53.7.
District-wide per-pupil expenditure for Loudoun County Public Schools, which includes Rock Ridge High.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Independence High | Larger | Similar economic need | Similar S:T ratio |
| Lightridge High | Larger | Similar economic need | Similar S:T ratio |
| Freedom High | Similar size | Similar economic need | Lower S:T ratio |
| Briar Woods High | Similar size | Similar economic need | Similar S:T ratio |
| John Champe High | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Rock Ridge High's own figures; each column derives from NCES Common Core of Data.
6 comparable other schools (grades Mixed) serving the same city.
Matched by enrollment size and by staffing ratio across all of Virginia, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Rock Ridge High's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Rock Ridge High has 1,599 students enrolled. It is a public school in Ashburn, VA.
The student-teacher ratio at Rock Ridge High is 16.2:1, which is 17% higher than the Virginia average of 13.9:1 and 3% higher than the national average of 15.7:1.
17.0% of students at Rock Ridge High are eligible for free lunch, compared to the Virginia average of 57.6%.
The largest demographic group at Rock Ridge High is Asian at 54.4% of enrollment, in Ashburn, VA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.5/100.
Rock Ridge High has a Resource Investment Index of 43/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Rock Ridge High ranks #16 of 16 schools in Ashburn, VA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Ashburn on the city page.
Rock Ridge High earns 43/100 on the Resource Investment Index, with class sizes larger than 84% of Virginia schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Rock Ridge High, Loudoun County Public Schools also operates Independence High (2,166 students), Lightridge High (2,030 students), and Freedom High (1,885 students). See the Loudoun County Public Schools district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Rock Ridge High, Ashburn VA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/rock-ridge-high-va
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.