Enrollment
623
Virginia · 2024-25 NCES data
Other / mixed grade configuration · Manassas, VA
Sudley Elementary
Federal NCES profile for Sudley Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataOther / mixed grade configurationNCES 510313001323
👥 S:T ratio 46
🌟 Gifted program 70
🎓 Counselors 38
📋 Attendance 43
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sudley Elementary earns 49/100 on the Resource Investment Index, with class sizes near the Virginia median.
- #11 of 18
- schools in Manassas · Resource Index
- 49
- Resource Index · Higher
- 13.5:1
- students per teacher
- 69.9%
- free-lunch eligible
Sudley Elementary has class sizes near the Virginia median. Computed live against every Virginia school reporting to NCES.
By Resource Investment Index, Sudley Elementary ranks #11 of 18 schools in Manassas, VA.
School address
District: Prince William County Public Schools · Virginia
NCES ID 510313001323 Verify on NCES CCD record →
Teachers (FTE)
46.0
Federal CCD staff survey
Students per teacher
13.5:1
vs 13.9:1 Virginia avg
-3% vs state
Free-lunch eligible
69.9%
vs 57.6% Virginia avg
+21% vs state
Student-teacher ratio in context
How Sudley Elementary compares with Virginia and U.S. medians
What stands out at Sudley Elementary
Sudley Elementary is a higher-need, mid-sized combined-grade school in Manassas, Virginia, enrolling 623 students.
At 13.5:1, its student-teacher ratio sits close to the Virginia median, within a few percentage points of the 13.9:1 state norm, neither notably crowded nor notably small.
Its free-meal eligibility rate of 69.9% lands close to the Virginia typical range, neither a high- nor low-need campus by this measure.
With 623 students, its enrollment sits close to the Virginia median campus size.
Its Resource Investment Index sits near the middle of the pack among 1,868 scored Virginia schools.
Against 315 statewide peers matched on enrollment and economic need, it ranks mid-pack at #152.
Its student body is led by Hispanic or Latino (80%) and White (8%) (diversity index 36/100).
Counselor coverage runs a bit thin, about 312 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 22.6% of students chronically absent per the 2021-22 civil-rights collection.
Among Manassas's public schools, it stands alongside Yorkshire Elementary (851 students): Sudley Elementary is smaller than that campus by headcount and runs leaner classes (13.5:1 vs 15.2:1).
Prince William County Public Schools also operates Charles J. Colgan Sr. High (2,956 students) and Woodbridge High (2,898 students) alongside Sudley 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 Sudley Elementary compares
Sudley 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 | 13.5:1 | ▼ 3% | 13.9:1 | 15.7:1 |
| Free-lunch eligible | 69.9% | ▲ 21% | 57.6% | 51.7% |
| Enrollment | 623 | top 40% | - | - |
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.
623
Bigger than 75% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
69.9%
free-lunch eligible
- 21% above the Virginia average of 57.6%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
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
22.6%
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
$13,913
per pupil, district-wide
- below Virginia avg of $14,649
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 312 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 1 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.2 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 79.5%
White 8.2%
Asian 5.5%
African American 5.1%
Two or More 1.6%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 79.5% of enrollment.
Student-body diversity index 35.5/100
Simpson diversity index - at 35.5, Sudley Elementary is less mixed than the Virginia school average of 53.7.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Prince William County Public Schools, which includes Sudley Elementary.
$13,913
Per student
-5%
vs Virginia
Avg $14,649
-16%
vs U.S.
Avg $16,593
Revenue mix
Local 47.2%
State 44.1%
Federal 8.6%
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 Sudley Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Charles J. Colgan Sr. High | Larger | Lower economic need | Higher S:T ratio |
| Woodbridge High | Larger | Lower economic need | Higher S:T ratio |
| Osbourn Park High | Larger | Lower economic need | Higher S:T ratio |
| Gainesville High | Larger | Lower economic need | Higher S:T ratio |
| Gar-Field High | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Sudley Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,956
- Students per teacher
- 18.5:1
- Resource Index
- 41/100
- Enrollment
- 2,898
- Students per teacher
- 17.5:1
- Resource Index
- 38/100
- Enrollment
- 2,661
- Students per teacher
- 16.6:1
- Resource Index
- 42/100
- Enrollment
- 2,648
- Students per teacher
- 20.9:1
- Resource Index
- 41/100
- Enrollment
- 2,524
- Students per teacher
- 16.7:1
- Resource Index
- 49/100
Similar other schools in Manassas
6 comparable other schools (grades Mixed) serving the same city.
Yorkshire Elementary
Standard public school
851 students 15.2:1 students per teacher
Signal Hill Elementary
Standard public school
807 students 17.2:1 students per teacher
Bennett Elementary
Standard public school
746 students 16.2:1 students per teacher
Ashland Elementary
Standard public school
738 students 16.4:1 students per teacher
George P. Mullen Elementary
Standard public school
667 students 13.3:1 students per teacher
Thurgood Marshall Elementary
Standard public school
642 students 17.4:1 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 (~623 students)
Similar student-teacher ratio (~13.5:1)
Next steps
Verify locally before acting on Sudley Elementary's federal record.
- Compare Sudley Elementary against another school. Compare schools
- Prince William 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 Sudley Elementary
How many students attend Sudley Elementary?
Sudley Elementary has 623 students enrolled. It is a public school in Manassas, VA.
What is the student-teacher ratio at Sudley Elementary?
The student-teacher ratio at Sudley 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 Sudley Elementary?
69.9% of students at Sudley Elementary are eligible for free lunch, compared to the Virginia average of 57.6%.
What is the racial and ethnic makeup of Sudley Elementary?
The largest demographic group at Sudley Elementary is Hispanic or Latino at 79.5% of enrollment, in Manassas, VA.
What is the Resource Investment Index for Sudley Elementary?
Sudley Elementary has a Resource Investment Index of 49/100 (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 Sudley Elementary rank among schools in Manassas?
By Resource Investment Index, Sudley Elementary ranks #11 of 18 schools in Manassas, VA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Manassas on the city page.
Is Sudley Elementary a good school?
Sudley Elementary earns 49/100 on the Resource Investment Index, with class sizes near the Virginia median. 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 Prince William County Public Schools?
Besides Sudley Elementary, Prince William County Public Schools also operates Charles J. Colgan Sr. High (2,956 students), Woodbridge High (2,898 students), and Osbourn Park High (2,661 students). See the Prince William 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.