- Enrollment
- 2,166
- Students per teacher
- 16:1
- Resource Index
- 46/100
Other / mixed grade configuration · Ashburn, VA
Mill Run Elementary
Federal NCES profile for Mill Run Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataOther / mixed grade configurationNCES 510225002540
👥 S:T ratio 46
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 78
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mill Run Elementary earns 49/100 on the Resource Investment Index, with class sizes near the Virginia median.
- #13 of 16
- schools in Ashburn · Resource Index
- 49
- Resource Index · Higher
- 13.5:1
- students per teacher
- 6.6%
- free-lunch eligible
Mill Run Elementary has class sizes near the Virginia median. Computed live against every Virginia school reporting to NCES.
By Resource Investment Index, Mill Run Elementary ranks #13 of 16 schools in Ashburn, VA.
School address
District: Loudoun County Public Schools · Virginia
NCES ID 510225002540 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-29 students YoY
Mill Run Elementary held near 648 students from 2022-23 to 2023-24 (-29 headcount).
Teacher FTE added 47.0 → 48.7 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-29 students YoY 510225002540 · Ashburn, VA Other · MID · TRAD
636 enr · 13.5:1 · 6.6% lunch · RII 49
Nearest enrollment peer: Independence High (2,166 students)
Mill Run Elementary held near 648 students from 2022-23 to 2023-24 (-29 headcount). Teacher FTE added 47.0 → 48.7 across the same CCD years. Read with this school → · District book → · Virginia schools → · Find another →
Mill Run Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Independence H
Independence High
2,166 students
- Lightridge Hig
Lightridge High
2,030 students
- Freedom High
Freedom High
1,885 students
- Briar Woods Hi
Briar Woods High
1,862 students
- John Champe Hi
John Champe High
1,851 students
- This school 636
Mill Run Elementary
636 students
What this shows Mill Run Elementary reports 636 students on the CCD universe file.
How Mill Run Elementary compares
Mill Run Elementary held steady on CCD headcount: ratios and free-lunch share vs Virginia and U.S. means.
| Metric | This school | vs Virginia | Virginia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.5:1 | ▼ 3% | 13.9:1 | 15.7:1 |
| Free-lunch eligible | 6.6% | ▼ 89% | 57.6% | 51.7% |
| Enrollment | 636 | top 38% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.5:1
Leaner classes than 62% of US schools, a middle-of-the-pack class size.
636
Bigger than 76% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
6.6%
free-lunch eligible
- 89% below the Virginia average of 57.6%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
13.5:1
students per teacher
- 3% below state mean
Top 45% in Virginia - lower ratio than 55% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
8.8%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$19,934
per pupil, district-wide
- above Virginia avg of $15,892
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.2 FTE
Per 530 students, the combined health-and-guidance staffing load for this school.
Discipline context
2
in-school suspensions + 2 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 0.6 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 40.7%
Asian 37.9%
African American 7.1%
Two or More 7.1%
Hispanic or Latino 6.3%
American Indian / Alaska Native 0.9%
Largest group: White at 40.7% of enrollment.
Student-body diversity index 67.7/100
Simpson diversity index - at 67.7, Mill Run Elementary is more mixed than the Virginia school average of 53.7.
Programs
Gifted & talented Yes
District finance for Loudoun County Public Schools reports $19,934 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Mill Run Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Independence High | Larger | Similar economic need | Higher S:T ratio |
| Lightridge High | Larger | Similar economic need | Higher S:T ratio |
| Freedom High | Larger | Similar economic need | Similar S:T ratio |
| Briar Woods High | Larger | Similar economic need | Similar S:T ratio |
| John Champe High | Larger | Higher economic need | Similar S:T ratio |
Comparisons are relative to Mill Run Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,030
- Students per teacher
- 16.5:1
- Resource Index
- 45/100
- Enrollment
- 1,885
- Students per teacher
- 13:1
- Resource Index
- 51/100
- Enrollment
- 1,862
- Students per teacher
- 14.8:1
- Resource Index
- 45/100
- Enrollment
- 1,851
- Students per teacher
- 14.7:1
- Resource Index
- 47/100
Similar other schools in Ashburn
6 comparable other schools (grades Mixed) serving the same city.
Rock Ridge High
Standard public school
1,599 students 16.2:1 students per teacher
Madison's Trust Elementary
Standard public school
1,004 students 17:1 students per teacher
Moorefield Station Elementary
Standard public school
963 students 15:1 students per teacher
Creighton's Corner Elementary
Standard public school
824 students 12.5:1 students per teacher
Rosa Lee Carter Elementary
Standard public school
792 students 13.7:1 students per teacher
Steuart W. Weller Elementary
Standard public school
710 students 15.8:1 students per teacher
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~636 students)
Frequently asked questions about Mill Run Elementary
How many students attend Mill Run Elementary?
Mill Run Elementary has 636 students enrolled. It is a public school in Ashburn, VA. CCD year-over-year: 677 (2022-23) → 648 (2023-24), nearly flat (-29).
What is the student-teacher ratio at Mill Run Elementary?
The student-teacher ratio at Mill Run Elementary is 13.5:1, which is 3% lower than the Virginia average of 13.9:1 and 14% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Mill Run Elementary?
6.6% of students at Mill Run Elementary are eligible for free lunch, compared to the Virginia average of 57.6%.
What is the racial and ethnic makeup of Mill Run Elementary?
The largest demographic group at Mill Run Elementary is White at 40.7% of enrollment, in Ashburn, VA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.7/100.
What is the Resource Investment Index for Mill Run Elementary?
Mill Run Elementary has a Resource Investment Index of 49/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Mill Run Elementary rank among schools in Ashburn?
By Resource Investment Index, Mill Run Elementary ranks #13 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.
What other schools are in Loudoun County Public Schools?
Besides Mill Run Elementary, 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.