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#1191 of 1,851 schools in VA

Mary Williams Elementary

Elementary School · Prince William County Public Schools

3100 Panther Pride Drive, Dumfries, VA 22026

Enrollment

697

Student-Teacher

15.8:1

Score

5.6

Grades

Pre-K – 5th

Data vintage2022-23

How this school compares

Virginia schools

#1,191 of 1,851

In Dumfries

#7 of 10

public schools

In district

#62 of 94

Prince William County Public Schools

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Mary Williams Elementary

5.6/10

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

Potomac Middle

4.5/10

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

Potomac High

5.7/10

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

About Mary Williams Elementary

Mary Williams Elementary is a public elementary school in Dumfries, VA, part of Prince William County Public Schools. Mary Williams Elementary serves approximately 697 students, and covers grades Pre-K-5th, and has a 15.8:1 student-teacher ratio. Mary Williams Elementary has a current MySchoolScout rating of 5.6 out of 10 and ranks #1,191 of 1,851 schools in VA.

Structured state assessment records for Mary Williams Elementary show 73% math proficiency (multi-year average, 2009-2025) and 74% reading/ELA proficiency (multi-year average, 2009-2025).

How it compares0.8 pts below district
  • This school 5.6 · Average
  • District avg 6.4
  • VA avg 6.2

Score Breakdown

Full Profile · 3/3 metrics
Student Progress5.7Average50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-1 pts/yr
Data Period2009–2025
TrendStable
Academics5.6Average30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency72% (2025 SOL)
Reading/ELA Proficiency70% (2025 SOL)
Math vs. State Avg-1.2 pts
Reading vs. State Avg-5.7 pts
Overall Proficiency71% (2025 SOL, Math+ELA)
Expected (poverty-adj.)74% (model expectation from 2025 SOL)
vs. Expected-2.7 pts
Adjusted Percentile38th
Resources & Environment5.4Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio15.8:1
Per-Pupil Spending$15,373
Chronic Absenteeism14.3%

Mary Williams Elementary — Students at Mary Williams Elementary score 71% proficient, which is below what's typical for similar communities (expected: 74%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

60.8%

Students qualifying for federal meal assistance

Test Scores VA SOL (2024-25)

Math Proficiency 72.9% (multi-year average, 2009-2025)
School
State
73.5% (2025 SOL)
ELA Proficiency 73.6% (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
87%
ELA
79%
2010
Math
87%
ELA
81%
2011
Math
74%
ELA
88%
2012
Math
70%
ELA
70%
2013
Math
76%
ELA
71%
2014
Math
81%
ELA
77%
2015
Math
81%
ELA
74%
2016
Math
79%
ELA
76%
2017
ELA
77%
2018
Math
77%
ELA
74%
2019
Math
77%
ELA
74%
2020*
Math
45%
ELA
64%
2021*
Math
45%
ELA
64%
2025
Math
71.8%
ELA
70.5%

* 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: 5.7/10.

How Mary Williams Elementary Compares

See how Mary Williams Elementary performs across key quality dimensions compared to state benchmarks.

Overall Score
5.6/10
36th percentile in VA
Academic
5.6/10
Average
Growth
5.7/10
Average
Environment
5.4/10
Average
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
61%
Teaching Staff
16:1 student-teacher ratio
44 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
14.3%

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

3100 Panther Pride Drive, Dumfries, VA 22026

Nearby Alternatives

Families considering Mary Williams Elementary may also want to explore other elementary schools in the area. Mary G. Porter Traditional (rated 8.6/10, 2.3 miles away, in nearby Woodbridge), which scores notably higher. Another option is John F. Pattie Sr. Elementary (rated 7.8/10, 2.6 miles away), which scores notably higher. Additionally, Fannie W. Fitzgerald Elementary (rated 7.7/10, 1.8 miles away, in nearby Woodbridge), which scores notably higher. For more schools in Dumfries, see our Dumfries schools guide .

Nearby Schools

20 within 3.5 mi
School Distance Rating
Potomac Middle Dumfries 0.2 mi 4.5
Potomac High Dumfries 0.5 mi 5.7
River Oaks Elementary Woodbridge 0.8 mi 5.8
Leesylvania Elementary Woodbridge 1.4 mi 5.2
Fannie W. Fitzgerald Elementary Woodbridge 1.8 mi 7.7
Swans Creek Elementary Dumfries 1.8 mi 6.1
Covington-Harper Elementary Dumfries 1.7 mi 7.6
ST JOHN PAUL THE GREAT CATHOLIC HIGH SCHOOL Dumfries 1.9 mi 6.0
Potomac Shores Middle Dumfries 2.2 mi 5.5
Freedom High Woodbridge 2.2 mi 4.5
Dumfries Elementary Dumfries 2.2 mi 4.2
EVANGEL CHRISTIAN SCHOOL Dale City 2.5 mi 6.7
Mary G. Porter Traditional Woodbridge 2.3 mi 8.6
Neabsco Elementary Woodbridge 2.6 mi 7.3
Graham Park Middle Triangle 2.7 mi 5.3
Dale City Elementary Woodbridge 3.1 mi 6.9
John F. Pattie Sr. Elementary Dumfries 2.6 mi 7.8
Rippon Middle Woodbridge 2.9 mi 5.4
CALVARY CHRISTIAN SCHOOL Triangle 3.2 mi 6.3
Triangle Elementary Triangle 3.5 mi 3.4

Neighborhood Census ACS (2019-2023)

Census data for ZIP 22026 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$114,512

Median Home Value

$436,300

Median Rent

$1,802/mo

Population

21,025

College Educated

38.3%

Homeownership

70.3%

Avg Commute

38.7 min

Poverty Rate

8.3%

Median Age

32.3

Similar Schools

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

School Rating
D.G. Cooley Elementary Berryville, VA 5.6
Eagle View Elementary Fairfax, VA 5.6
Elizabeth Scott Elementary Chester, VA 5.6
Emerald Hill Elementary Culpeper, VA 5.6
Forest Edge Elementary Reston, VA 5.6
Greenbrier Primary Chesapeake, VA 5.6

Frequently Asked Questions

Common questions about Mary Williams Elementary

What grades does Mary Williams Elementary serve?

Mary Williams Elementary serves students in grades Pre-K through 5th.

How many students attend Mary Williams Elementary?

Mary Williams Elementary has an enrollment of approximately 697 students.

What is the student-teacher ratio at Mary Williams Elementary?

The student-teacher ratio at Mary Williams Elementary is 15.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Mary Williams Elementary rank in VA?

Mary Williams Elementary ranks #1,191 of 1,851 schools in VA.

What is Mary Williams Elementary's MySchoolScout rating?

Mary Williams Elementary has a current MySchoolScout rating of 5.6 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 Mary Williams Elementary?

Based on loaded state assessment records, Mary Williams Elementary has 73% math proficiency (multi-year average, 2009-2025) and 74% reading/ELA proficiency (multi-year average, 2009-2025).

Is Mary Williams Elementary a charter school?

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

Is Mary Williams Elementary a Title I school?

No, Mary Williams Elementary is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Mary Williams Elementary?

60.8% of students at Mary Williams 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
59 Somewhat Walkable
Bike Score
36 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
Pre-K – 5th
Enrollment
697
Student-Teacher Ratio
15.8:1
Teachers (FTE)
44
Free/Reduced Lunch
60.8%
Type
regular
Setting
Large Suburb
County
Prince William County
Chronic Absenteeism (SY 2022-23)
14.3%

District

Prince William County Public Schools
District Enrollment
90,550
Schools in District
99
Per-Pupil Spending
$15,373
District Rank
#62 of 94

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