What We Evaluated
| 👨🏫 Class Size | 13.2:1 student-teacher ratio |
| 💰 Funding | $19,816 per student |
| 🏫 School Type | Regular |
School Information
| Address | 4400 Stringfellow Rd |
| City | Chantilly |
| ZIP Code | 20151 |
| District | 5101260 |
| NCES School ID | 510126001841 |
| Data Year | 2024-25 |
Community Context for 20151
Understanding the community around Rocky Run Middle helps evaluate the school environment and neighborhood.
💰 Income & Economy
| Median Household Income | $137,483 |
| Per Capita Income | $56,218 |
| Poverty Rate | 2.6% |
| Households Earning $100K+ | 65.9% |
🎓 Education Level
| Bachelor's Degree or Higher | 59.0% |
| High School or Higher | 92.1% |
🏠 Housing
| Median Home Value | $628,900 |
| Median Rent | $2,030 |
| Owner-Occupied | 80.1% |
| Renter-Occupied | 19.9% |
Thinking about moving into this school’s area? See what homes and rents actually cost in ZIP 20151 — values, rent, and how it compares to nearby ZIPs. Free, no signup. See 20151 housing costs →
Student Demographics
Enrollment and demographic breakdown for Rocky Run Middle.
👫 Gender Distribution
🌎 Race & Ethnicity
📋 Enrollment Summary
| Total Enrollment | 886 |
| Teachers (FTE) | 67.1 |
| Student:Teacher Ratio | 13.2:1 |
Frequently Asked Questions
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Other Schools in 20151
About Repit School Scores
Traditional school ratings rely heavily on standardized test scores, which often reflect family income more than actual school quality. Repit takes a different approach.
We evaluate schools based on factors that research shows actually impact educational outcomes:
- Class Size — Smaller classes mean more individual attention and better student outcomes.
- School Funding — Resources available for programs, teachers, and facilities directly affect education quality.
- School Environment — School size and structure affect available programs and student experience.
Data source: NCES CCD 2024-25 | Last updated: September 2026