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Mary Williams Elementary

Public, Magnet Grades PK, KG-5
531st
SchoolDigger Rank ?
of 1,111 Virginia Elementary Schools
Better than 52% of Virginia elementary schools
Summary

Mary Williams Elementary is a PK–5 school in Dumfries, VA, serving 669 students as part of Prince William County Public Schools. The school has shown clear improvement, moving from a 2-star to a 3-star rating and climbing to the 52nd percentile of Virginia elementary schools for 2025–2026. That upward trend is backed by genuine bright spots: 5th-grade science proficiency (72.57%) beats both the district and state averages, and 3rd-grade reading (76.79% proficient) outpaces many nearby schools with similar demographics, including Neabsco Elementary, Swans Creek Elementary, and Fannie W. Fitzgerald Elementary.

The school is especially effective with historically underserved students. Hispanic students rank in the 79th percentile statewide (4 stars), and English learners rank in the 77th percentile (4 stars). Low-income students also perform above the statewide median, despite 70.85% of the student body qualifying for free or reduced-price lunch. These strengths stand out even as the school's overall ranking is pulled down by a persistent weakness: 4th grade. In 2025–2026, 4th-grade reading (71.43%), math (72.32%), and Virginia Studies (69.05%) all fell below district averages, with Virginia Studies being a consistent gap year after year.

Chronic absenteeism is another area of concern. At 15.2%, it is the second-highest rate among 11 nearby schools and well above the state average. This contrasts sharply with higher-performing neighbors like John F. Pattie Senior Elementary (7.8%), A. Henderson Elementary (8.3%), and Covington-Harper Elementary (8.2%). Notably, Leesylvania Elementary is the only nearby school with a higher rate (15.9%). Since Mary Williams spends mid-range per student ($11,194) and has a favorable student-teacher ratio of 15.8, the data suggests that improving attendance and stabilizing 4th-grade performance—especially Virginia Studies—could lift the school's ranking even further. With strong early literacy and science already in place, the path forward looks promising.

669
Students ?
15.8
Student/teacher ratio ?
$11,194
Per pupil spending ?
70.9%
Free/discounted lunch ?
 3100 Panther Pride Drive
       Dumfries, VA  22026

(703) 445-8376

District: Prince William County Public Schools


Students who attend Mary Williams Elementary usually attend:

Middle:    Potomac Middle
High:    Potomac High
Racial breakdown:

African American:
34.4%
Hispanic:
27.8%
Asian:
17.3%
more
 See top rated Virginia elementary schools

 Compare Mary Williams Elementary to nearby elementary schools!
At a glance
▲ Ranking trend: Improving — 44th percentile in 2016 → 52nd in 2026
Strengths
✓Ranking is trending up — up 8 percentile points since 2016
✓Above the Virginia median (52nd percentile)
Worth a look
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2025-2026) ?
This school74%
District avg77%
Virginia avg72%
531st of 1,111
Virginia public elementary schools ?
Top 48%▲ up 9 pts since 2016
From bottom 44% (2016) to top 48% (2026)
See the entire ranking list of Virginia Elementary Schools →
★★★★★
SchoolDigger rating ?
41st of 65Elementary Schools in the Prince William County Public Schools
46th of 131Prince William County Public Schools among Virginia districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankVirginia percentileRating
202656.6531 of 111152.2%★★★☆☆
202549.8600 of 111045.9%★★☆☆☆
202453.7575 of 111448.4%★★☆☆☆
202346.7643 of 111442.3%★★☆☆☆
202244.2677 of 110939.0%★★☆☆☆
202141.0702 of 110336.4%★★☆☆☆
201940.2763 of 110531.0%★★☆☆☆
201848.4648 of 109740.9%★★☆☆☆
201744.8690 of 109937.2%★★☆☆☆
201650.1619 of 109643.5%★★☆☆☆
201554.6571 of 110048.1%★★☆☆☆
201456.5499 of 111055.0%★★★☆☆
201348.2623 of 112044.4%★★☆☆☆
201256.2510 of 111754.3%★★★☆☆
201129.5946 of 111715.3%★☆☆☆☆
201034.7905 of 111318.7%★☆☆☆☆
200932.0898 of 108217.0%★☆☆☆☆
200835.1828 of 108123.4%★☆☆☆☆
200719.7992 of 10838.4%☆☆☆☆☆
200611.91039 of 10713.0%☆☆☆☆☆
200542.9683 of 106235.7%★★☆☆☆

African American

YearAvg scoreStatewide rankVirginia percentileRating
202662.1217 of 59163.3%★★★☆☆
202569.5152 of 57973.7%★★★★☆
202475.2122 of 58879.3%★★★★☆
202374.7115 of 57980.1%★★★★☆

Asian

YearAvg scoreStatewide rankVirginia percentileRating
202645.6164 of 24633.3%★★☆☆☆
202512.8233 of 2496.4%☆☆☆☆☆
202448.0147 of 23838.2%★★☆☆☆
202348.2130 of 23043.5%★★☆☆☆

Disabled

YearAvg scoreStatewide rankVirginia percentileRating
202654.7216 of 42048.6%★★☆☆☆
202449.2224 of 35536.9%★★☆☆☆
202351.1187 of 32442.3%★★☆☆☆

English Language Learner

YearAvg scoreStatewide rankVirginia percentileRating
202672.574 of 31576.5%★★★★☆
202560.9117 of 32664.1%★★★☆☆
202467.884 of 30672.5%★★★★☆
202343.3165 of 30045.0%★★☆☆☆

Female

YearAvg scoreStatewide rankVirginia percentileRating
202655.7522 of 110052.5%★★★☆☆
202555.6519 of 109652.6%★★★☆☆
202454.6542 of 109850.6%★★★☆☆
202346.8632 of 110042.5%★★☆☆☆

Hispanic

YearAvg scoreStatewide rankVirginia percentileRating
202673.8133 of 61978.5%★★★★☆
202555.5277 of 60654.3%★★★☆☆
202448.2338 of 58041.7%★★☆☆☆
202331.2421 of 56425.4%★☆☆☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankVirginia percentileRating
202658.3436 of 104058.1%★★★☆☆
202551.9530 of 104649.3%★★☆☆☆
202456.6472 of 103654.4%★★★☆☆

Male

YearAvg scoreStatewide rankVirginia percentileRating
202655.3531 of 109951.7%★★★☆☆
202542.9674 of 109338.3%★★☆☆☆
202450.2595 of 110146.0%★★☆☆☆
202346.4638 of 109341.6%★★☆☆☆

Military Connected

YearAvg scoreStatewide rankVirginia percentileRating
202640.1144 of 20630.1%★★☆☆☆
202571.545 of 19276.6%★★★★☆
202436.8141 of 19527.7%★☆☆☆☆
202339.1129 of 18229.1%★☆☆☆☆

Multi-racial

YearAvg scoreStatewide rankVirginia percentileRating
202368.881 of 24566.9%★★★☆☆

White

YearAvg scoreStatewide rankVirginia percentileRating
202649.5547 of 97443.8%★★☆☆☆
202550.7535 of 97345.0%★★☆☆☆
202435.0726 of 97925.8%★☆☆☆☆
202328.6788 of 98419.9%★☆☆☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Hispanic (2026)79th percentile+26 vs school
English Language Learner (2026)77th percentile+24 vs school
Multi-racial (2023)67th percentile+25 vs school
African American (2026)63rd percentile+11 vs school
Low Socio Economic Status (2026)58th percentile+6 vs school
Female (2026)53rd percentile~ school
Male (2026)52nd percentile~ school
Disabled (2026)49th percentile-4 vs school
White (2026)44th percentile-8 vs school
Asian (2026)33rd percentile-19 vs school
Military Connected (2026)30th percentile-22 vs school
By subject vs Virginia (2025-2026) ?
Mathematics75%~ state avg
English Reading74%+3 vs state
Science73%+4 vs state
VA Studies69%~ state avg

★
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Frequently Asked Questions about Mary Williams Elementary

Mary Williams Elementary ranks 531st of 1111 Virginia elementary schools. SchoolDigger rates this school 3 stars out of 5.

Students at Mary Williams Elementary are 34% African American, 28% Hispanic, 17% Asian, 15% White, 5% Two or more races.

In the 2024-25 school year, 669 students attended Mary Williams Elementary.

Students who attend Mary Williams Elementary usually go on to attend:

Middle : Potomac Middle
High : Potomac High

Rate Mary Williams Elementary!



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Latest Virginia data All new data »
2025–26 SOL test scoresAug 25, 2026
2021–22 school spending dataFeb 16, 2026
2022–23 through 2023–24 school spending dataFeb 10, 2026
2024–25 dropout rates & graduation ratesJan 6, 2026


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Virginia Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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