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Excellent

#172 of 1,851 schools in VA

Top 9% in state

Rocky Run Middle

Middle School · Fairfax County Public Schools

4400 Stringfellow Rd, Chantilly, VA 20151

Enrollment

886

Student-Teacher

13.2:1

Score

8.5

Grades

7th – 8th

Data vintage2022-23

How this school compares

Virginia schools

#172 of 1,851

In Chantilly

#3 of 7

public schools

In district

#34 of 199

Fairfax County Public Schools

School environment

9.5 / 10

Excellent

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Rocky Run Middle

8.5/10

Middle School in Chantilly · grades 7th – 8th. Start here, then compare fit against nearby and district options.

Greenbriar West Elementary

8.1/10

0.3 mi away. Use as a geographic alternative in the same move search.

Chantilly High

8.5/10

0.5 mi away. Use as a geographic alternative in the same move search.

About Rocky Run Middle

Rocky Run Middle is a public middle school in Chantilly, VA, part of Fairfax County Public Schools. Rocky Run Middle serves approximately 886 students, and covers grades 7th-8th, and has a 13.2:1 student-teacher ratio. Rocky Run Middle has a current MySchoolScout rating of 8.5 out of 10 and ranks #172 of 1,851 schools in VA.

Structured state assessment records for Rocky Run Middle show 90% math proficiency (multi-year average, 2009-2025) and 95% reading/ELA proficiency (multi-year average, 2009-2025).

How it compares2.0 pts above district
  • This school 8.5 · Excellent
  • District avg 6.5
  • VA avg 5.9

Score Breakdown

Full Profile · 3/3 metrics
Student Progress7.2Very Good40%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-0.62 pts/yr
Data Period2009–2025
TrendStable
Academics9.3Excellent35%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency93% (2025 SOL)
Reading/ELA Proficiency93% (2025 SOL)
Math vs. State Avg+17.6 pts
Reading vs. State Avg+17.3 pts
Overall Proficiency93% (2025 SOL, Math+ELA)
Expected (poverty-adj.)84% (model expectation from 2025 SOL)
vs. Expected+8.6 pts
Adjusted Percentile89th
Resources & Environment9.5Excellent25%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio13.2:1
Per-Pupil Spending$18,975
Chronic Absenteeism11.1%

Rocky Run Middle — Students at Rocky Run Middle score 93% proficient, which is above what's typical for similar communities (expected: 84%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

20.8%

Students qualifying for federal meal assistance

Test Scores VA SOL (2024-25)

Math Proficiency 89.8% (multi-year average, 2009-2025)
School
State
66.9% (2025 SOL)
ELA Proficiency 94.7% (multi-year average, 2009-2025)
School
State
74.1% (2025 SOL)

Based on 31 test records from VA state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
98%
ELA
99.5%
2010
Math
98%
ELA
99.5%
2011
Math
91%
ELA
99.5%
2012
Math
92%
ELA
95%
2013
Math
93%
ELA
94%
2014
Math
95%
ELA
95%
2015
Math
95%
ELA
95%
2016
Math
76%
ELA
95%
2017
ELA
95%
2018
Math
93%
ELA
93%
2019
Math
93%
ELA
93%
2020*
Math
85%
ELA
92%
2021*
Math
85%
ELA
92%
2025
Math
84.3%
ELA
92.7%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 7.2/10.

How Rocky Run Middle Compares

See how Rocky Run Middle performs across key quality dimensions compared to state benchmarks.

Overall Score
8.5/10
91th percentile in VA
Academic
9.3/10
Excellent
Growth
7.2/10
Very Good
Environment
9.5/10
Excellent
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
21%
Teaching Staff
13:1 student-teacher ratio
67 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
11.1%

Programs & Offerings

Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

4400 Stringfellow Rd, Chantilly, VA 20151

Nearby Alternatives

Families considering Rocky Run Middle may also want to explore other middle schools in the area. Poplar Tree Elementary (rated 9.2/10, 0.8 miles away), which scores slightly higher. Another option is Navy Elementary (rated 9.0/10, 2.0 miles away, in nearby Fairfax), which scores slightly higher. Additionally, Chantilly High (rated 8.5/10, 0.5 miles away), with a very similar rating. For more schools in Chantilly, see our Chantilly schools guide .

Nearby Schools

20 within 2.5 mi
School Distance Rating
Greenbriar West Elementary Fairfax 0.3 mi 8.1
Chantilly High Chantilly 0.5 mi 8.5
Brookfield Elementary Chantilly 0.7 mi 3.3
Poplar Tree Elementary Chantilly 0.8 mi 9.2
ST TIMOTHY CATHOLIC SCHOOL Chantilly 0.8 mi 5.2
Greenbriar East Elementary Fairfax 0.9 mi 4.6
Lees Corner Elementary Fairfax 1.1 mi 7.9
GUIDEPOST MONTESSORI AT CHANTILLY Chantilly 1.4 mi 7.2
Powell Elementary Centreville 2.0 mi 8.0
MONTESSORI SCHOOL OF FAIRFAX Chantilly 2.1 mi 8.1
MONTESSORI SCHOOL OF CHANTILLY Chantilly 1.8 mi
Franklin Middle Chantilly 2.3 mi 7.5
Navy Elementary Fairfax 2.0 mi 9.0
BEANTREE LEARNING - CHANTILLY Chantilly 1.9 mi
THE GODDARD SCHOOL Chantilly 1.9 mi
ST VERONICA CATHOLIC SCHOOL Chantilly 2.5 mi 6.4
Oak Hill Elementary Herndon 2.7 mi 8.4
Mountain View High Centreville 2.7 mi 2.4
PRIMROSE SCHOOL OF CHANTILLY Chantilly 2.9 mi
MONTESSORI SCHOOL OF OAKTON Faifax 2.5 mi 5.2

Neighborhood Census ACS (2019-2023)

Census data for ZIP 20151 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$143,422

Median Home Value

$647,400

Median Rent

$2,245/mo

Population

22,502

College Educated

57.2%

Homeownership

79.5%

Avg Commute

29.2 min

Poverty Rate

6.4%

Median Age

40.7

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Mary Ellen Henderson Middle Falls Church, VA 8.4
Cooper Middle Mclean, VA 8.7
Oak Knoll Middle Mechanicsville, VA 8.3
Page Middle Gloucester, VA 8.3
South County Middle Lorton, VA 8.7
Union Middle Big Stone Gap, VA 8.3

Frequently Asked Questions

Common questions about Rocky Run Middle

What grades does Rocky Run Middle serve?

Rocky Run Middle serves students in grades 7th through 8th.

How many students attend Rocky Run Middle?

Rocky Run Middle has an enrollment of approximately 886 students.

What is the student-teacher ratio at Rocky Run Middle?

The student-teacher ratio at Rocky Run Middle is 13.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Rocky Run Middle rank in VA?

Rocky Run Middle ranks #172 of 1,851 schools in VA.

What is Rocky Run Middle's MySchoolScout rating?

Rocky Run Middle has a current MySchoolScout rating of 8.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Rocky Run Middle?

Based on loaded state assessment records, Rocky Run Middle has 90% math proficiency (multi-year average, 2009-2025) and 95% reading/ELA proficiency (multi-year average, 2009-2025).

Is Rocky Run Middle a charter school?

No, Rocky Run Middle is not a charter school. It is a traditional public school operated by the local school district.

Is Rocky Run Middle a Title I school?

No, Rocky Run Middle is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Rocky Run Middle?

20.8% of students at Rocky Run Middle qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
29 Car-Dependent
Transit Score
26 Some Transit
Bike Score
33 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
7th – 8th
Enrollment
886
Student-Teacher Ratio
13.2:1
Teachers (FTE)
67
Free/Reduced Lunch
20.8%
Type
regular
Setting
Large Suburb
County
Fairfax County
Chronic Absenteeism (SY 2022-23)
11.1%

District

Fairfax County Public Schools
District Enrollment
180,714
Schools in District
223
Per-Pupil Spending
$18,975
District Rank
#34 of 199

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