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Excellent

#27 of 1,851 schools in VA

Top 1% in state

Mill Run Elementary

Elementary School · Loudoun County Public Schools

42940 Ridgeway Drive, Ashburn, VA 20148

Enrollment

648

Student-Teacher

13.5:1

Score

9.3

Grades

Pre-K – 5th

Data vintage2022-23

How this school compares

Virginia schools

#27 of 1,851

In Ashburn

#1 of 25

public schools

In district

#6 of 96

Loudoun County Public Schools

Academic growth

9.6 / 10

Excellent

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Mill Run Elementary

9.3/10

Elementary School in Ashburn · grades Pre-K – 5th. Start here, then compare fit against nearby and district options.

Eagle Ridge Middle

9.0/10

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

Open Arms Christian Child Development Center

Nearby

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

About Mill Run Elementary

Mill Run Elementary is a public elementary school in Ashburn, VA, part of Loudoun County Public Schools. Mill Run Elementary serves approximately 648 students, and covers grades Pre-K-5th, and has a 13.5:1 student-teacher ratio. Mill Run Elementary has a current MySchoolScout rating of 9.3 out of 10 and ranks #27 of 1,851 schools in VA.

Structured state assessment records for Mill Run Elementary show 90% math proficiency (multi-year average, 2009-2025) and 91% reading/ELA proficiency (multi-year average, 2009-2025).

How it compares1.9 pts above district
  • This school 9.3 · Excellent
  • District avg 7.4
  • VA avg 6.2

Score Breakdown

Full Profile · 3/3 metrics
Student Progress9.6Excellent50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change+0.13 pts/yr
Data Period2009–2025
TrendStable
Academics8.8Excellent30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency93% (2025 SOL)
Reading/ELA Proficiency91% (2025 SOL)
Math vs. State Avg+19.8 pts
Reading vs. State Avg+15.3 pts
Overall Proficiency92% (2025 SOL, Math+ELA)
Expected (poverty-adj.)88% (model expectation from 2025 SOL)
vs. Expected+3.8 pts
Adjusted Percentile81th
Resources & Environment9.1Excellent20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio13.5:1
Per-Pupil Spending$19,934
Chronic Absenteeism18.2%

Mill Run Elementary — Students at Mill Run Elementary score 92% proficient, which is above what's typical for similar communities (expected: 88%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

6.8%

Students qualifying for federal meal assistance

Test Scores VA SOL (2024-25)

Math Proficiency 90.3% (multi-year average, 2009-2025)
School
State
73.5% (2025 SOL)
ELA Proficiency 90.5% (multi-year average, 2009-2025)
School
State
72.2% (2025 SOL)

Based on 33 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
96%
ELA
95%
2010
Math
94%
ELA
91%
2011
Math
77%
ELA
92%
2012
Math
79%
ELA
84%
2013
Math
89%
ELA
89%
2014
Math
92%
ELA
91%
2015
Math
89%
ELA
93%
2016
Math
91%
ELA
93%
2017
ELA
90%
2018
Math
96%
ELA
91%
2019
Math
96%
ELA
91%
2020*
Math
86%
ELA
86%
2021*
Math
86%
ELA
86%
2025
Math
93.5%
ELA
91.5%

* 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: 9.6/10.

How Mill Run Elementary Compares

See how Mill Run Elementary performs across key quality dimensions compared to state benchmarks.

Overall Score
9.3/10
99th percentile in VA
Academic
8.8/10
Excellent
Growth
9.6/10
Excellent
Environment
9.1/10
Excellent
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
7%
Teaching Staff
14:1 student-teacher ratio
48 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
18.2%

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

42940 Ridgeway Drive, Ashburn, VA 20148

Nearby Alternatives

Families considering Mill Run Elementary may also want to explore other elementary schools in the area. Waxpool Elementary (rated 9.2/10, 0.8 miles away), with a very similar rating. Another option is Legacy Elementary (rated 8.9/10, 2.3 miles away), with a comparable rating. Additionally, Rosa Lee Carter Elementary (rated 8.6/10, 2.5 miles away), with a comparable rating. For more schools in Ashburn, see our Ashburn schools guide .

Nearby Schools

20 within 2.6 mi
School Distance Rating
Eagle Ridge Middle Ashburn 0.2 mi 9.0
OPEN ARMS CHRISTIAN CHILD DEVELOPMENT CENTER Ashburn 0.4 mi
GUIDEPOST MONTESORI BROADLANDS Ashburn 0.4 mi 7.8
GUIDEPOST MONTESSORI AT BROADLANDS Ashburn 0.4 mi 7.2
GUIDEPOST MONTESSORI AT BROADLANDS Broadlands 0.4 mi 7.1
Hillside Elementary Ashburn 0.6 mi 8.3
Waxpool Elementary Ashburn 0.8 mi 9.2
Moorefield Station Elementary Ashburn 1.0 mi 7.9
PRIMROSE SCHOOL OF ASHBURN AT BROADLANDS Broadlands 1.1 mi
BEAN TREE LEARNING Ashburn 1.3 mi
NEXTIDE ACADEMY Ashburn 1.4 mi
Briar Woods High Ashburn 1.6 mi 8.8
Broad Run High Ashburn 1.5 mi 8.0
Sanders Corner Elementary Ashburn 1.8 mi 7.5
Legacy Elementary Ashburn 2.3 mi 8.9
GOLDEN POND SCHOOL Ashburn 2.0 mi
Rosa Lee Carter Elementary Ashburn 2.5 mi 8.6
Cedar Lane Elementary Ashburn 2.3 mi 8.3
Rock Ridge High Ashburn 2.5 mi 9.1
Stone Bridge High Ashburn 2.6 mi 8.4

Neighborhood Census ACS (2019-2023)

Census data for ZIP 20148 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$233,502

Median Home Value

$843,800

Median Rent

$2,647/mo

Population

63,615

College Educated

77%

Homeownership

79.8%

Avg Commute

33.5 min

Poverty Rate

2.1%

Median Age

37.7

Similar Schools

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

School Rating
Algonkian Elementary Sterling, VA 9.3
Coeburn Primary Coeburn, VA 9.3
Jamestown Elementary Arlington, VA 9.3
Emerick Elementary Purcellville, VA 9.4
Glebe Elementary Arlington, VA 9.4
Brownsville Elementary Crozet, VA 9.2

Frequently Asked Questions

Common questions about Mill Run Elementary

What grades does Mill Run Elementary serve?

Mill Run Elementary serves students in grades Pre-K through 5th.

How many students attend Mill Run Elementary?

Mill Run Elementary has an enrollment of approximately 648 students.

What is the student-teacher ratio at Mill Run Elementary?

The student-teacher ratio at Mill Run Elementary is 13.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Mill Run Elementary rank in VA?

Mill Run Elementary ranks #27 of 1,851 schools in VA.

What is Mill Run Elementary's MySchoolScout rating?

Mill Run Elementary has a current MySchoolScout rating of 9.3 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 Mill Run Elementary?

Based on loaded state assessment records, Mill Run Elementary has 90% math proficiency (multi-year average, 2009-2025) and 91% reading/ELA proficiency (multi-year average, 2009-2025).

Is Mill Run Elementary a charter school?

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

Is Mill Run Elementary a Title I school?

No, Mill Run Elementary is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Mill Run Elementary?

6.8% of students at Mill Run Elementary 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
30 Car-Dependent
Bike Score
34 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
Pre-K – 5th
Enrollment
648
Student-Teacher Ratio
13.5:1
Teachers (FTE)
48
Free/Reduced Lunch
6.8%
Type
regular
Setting
Large Suburb
County
Loudoun County
Chronic Absenteeism (SY 2022-23)
18.2%

District

Loudoun County Public Schools
District Enrollment
81,636
Schools in District
100
Per-Pupil Spending
$19,934
District Rank
#6 of 96

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