Enrollment
476
Virginia · 2024-25 NCES data
Other / mixed grade configuration · Sterling, VA
Sully Elementary
Federal NCES profile for Sully Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
2024-25 NCES dataOther / mixed grade configurationNCES 510225000935
👥 S:T ratio 60
🌟 Gifted program 70
🎓 Counselors 47
📋 Attendance 45
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sully Elementary earns 55/100 on the Resource Investment Index, with class sizes smaller than 94% of Virginia schools. It is also less racially and ethnically mixed than most Virginia schools.
- #9 of 14
- schools in Sterling · Resource Index
- 55
- Resource Index · Higher
- 10.1:1
- small classes for Virginia
- 92.6%
- free-lunch eligible
Sully Elementary has class sizes smaller than 94% of Virginia schools. Computed live against every Virginia school reporting to NCES.
By Resource Investment Index, Sully Elementary ranks #9 of 14 schools in Sterling, VA.
School address
District: Loudoun County Public Schools · Virginia
NCES ID 510225000935 Verify on NCES CCD record →
Teachers (FTE)
47.0
Federal CCD staff survey
Students per teacher
10.1:1
vs 13.9:1 Virginia avg
-27% vs state
Free-lunch eligible
92.6%
vs 57.6% Virginia avg
+61% vs state
Student-teacher ratio in context
How Sully Elementary compares with Virginia and U.S. medians
What stands out at Sully Elementary
Sully Elementary is a high-poverty, mid-sized combined-grade school in Sterling, Virginia, enrolling 476 students.
Classes run notably small here: at 10.1:1, Sully Elementary is leaner than roughly 94% of Virginia schools and 27% under the state's 13.9:1 norm, more adult attention per pupil than most peers.
Economic need is high: 92.6% of students qualify for free meals, 61% above the Virginia average, a Title I-weighted population that federal funding formulas prioritise.
With 476 students, its enrollment sits close to the Virginia median campus size.
Its Resource Investment Index lands in the upper third of 1,868 scored Virginia schools.
Against 359 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #54.
Its student body is predominantly Hispanic or Latino (86% of enrollment), among the less diverse in the state (diversity index 26/100).
Counselor coverage runs a bit thin, about 264 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 22.1% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Loudoun County Public Schools spends $18,953 per pupil, 29% above the Virginia average, a better-resourced district than most.
Among Sterling's public schools, it stands alongside Dominion High (1,453 students): Sully Elementary is smaller than that campus by headcount and runs leaner classes (10.1:1 vs 11.6:1).
Loudoun County Public Schools also operates Independence High (2,166 students) and Lightridge High (2,030 students) alongside Sully Elementary.
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
How Sully Elementary compares
Sully Elementary on the metrics families compare, against Virginia and U.S. means.
| Metric | This school | vs Virginia | Virginia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 10.1:1 | ▼ 27% | 13.9:1 | 15.7:1 |
| Free-lunch eligible | 92.6% | ▲ 61% | 57.6% | 51.7% |
| Enrollment | 476 | top 62% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.1:1
Leaner classes than 88% of US schools, among the more generously staffed nationally.
476
Bigger than 59% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
92.6%
free-lunch eligible
- 61% above the Virginia average of 57.6%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
10.1:1
students per teacher
- 27% below state mean
Top 6% in Virginia - lower ratio than 94% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
22.1%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$18,953
per pupil, district-wide
- above Virginia avg of $14,649
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.8 FTE
Per 264 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 2 out-of-school
Suspension rate: 0.2 per 100 students. Combined in-school and out-of-school rate: 0.6 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
Hispanic or Latino 85.5%
Asian 5.5%
White 4.6%
African American 3.4%
Two or More 1.1%
Largest group: Hispanic or Latino at 85.5% of enrollment.
Student-body diversity index 26.3/100
Simpson diversity index - at 26.3, Sully Elementary is less mixed than the Virginia school average of 53.7.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Loudoun County Public Schools, which includes Sully Elementary.
$18,953
Per student
+29%
vs Virginia
Avg $14,649
+14%
vs U.S.
Avg $16,593
Revenue mix
Local 67.9%
State 27.1%
Federal 5.0%
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.
How Sully Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Independence High | Larger | Lower economic need | Higher S:T ratio |
| Lightridge High | Larger | Lower economic need | Higher S:T ratio |
| Freedom High | Larger | Lower economic need | Higher S:T ratio |
| Briar Woods High | Larger | Lower economic need | Higher S:T ratio |
| John Champe High | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Sully Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,166
- Students per teacher
- 16:1
- Resource Index
- 46/100
- 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 Sterling
6 comparable other schools (grades Mixed) serving the same city.
Dominion High
Standard public school
1,453 students 11.6:1 students per teacher
Elaine E. Thompson Elementary
Standard public school
756 students 12.6:1 students per teacher
Countryside Elementary
Standard public school
648 students 13:1 students per teacher
Potowmack Elementary
Standard public school
568 students 12.6:1 students per teacher
Rolling Ridge Elementary
Standard public school
562 students 11.2:1 students per teacher
Forest Grove Elementary
Standard public school
529 students 10.6:1 students per teacher
Similar other schools statewide
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.
Similar enrollment (~476 students)
Similar student-teacher ratio (~10.1:1)
Next steps
Verify locally before acting on Sully Elementary's federal record.
- Compare Sully Elementary against another school. Compare schools
- Loudoun County Public Schools's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Sully Elementary
How many students attend Sully Elementary?
Sully Elementary has 476 students enrolled. It is a public school in Sterling, VA.
What is the student-teacher ratio at Sully Elementary?
The student-teacher ratio at Sully Elementary is 10.1:1, which is 27% lower than the Virginia average of 13.9:1 and 36% 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 Sully Elementary?
92.6% of students at Sully Elementary are eligible for free lunch, compared to the Virginia average of 57.6%.
What is the racial and ethnic makeup of Sully Elementary?
The largest demographic group at Sully Elementary is Hispanic or Latino at 85.5% of enrollment, in Sterling, VA.
What is the Resource Investment Index for Sully Elementary?
Sully Elementary has a Resource Investment Index of 55/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sully Elementary rank among schools in Sterling?
By Resource Investment Index, Sully Elementary ranks #9 of 14 schools in Sterling, VA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Sterling on the city page.
Is Sully Elementary a good school?
Sully Elementary earns 55/100 on the Resource Investment Index, with class sizes smaller than 94% of Virginia schools. It is also less racially and ethnically mixed than most 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.
What other schools are in Loudoun County Public Schools?
Besides Sully 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.
Related tools
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.