Serving 669 students in grades Prekindergarten-5, Mary Williams Elementary School ranks in the bottom 50% of all schools in Virginia for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 66% (which is lower than the Virginia state average of 68%). The percentage of students achieving proficiency in reading/language arts is 64% (which is lower than the Virginia state average of 69%).
The student-teacher ratio of 16:1 is higher than the Virginia state level of 14:1.
Minority enrollment is 85% of the student body (majority Black and Hispanic), which is higher than the Virginia state average of 56% (majority Black and Hispanic).
Quick Facts (2026)
- School Type: Magnet School
- Grades: Prekindergarten-5
- Enrollment: 669 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 85%
- Overall Testing Rank: Bottom 50% in VA
- Math Proficiency: 66% (Btm 50%)
- Reading Proficiency: 64% (Btm 50%)
- Science Proficiency: 25-29% (Btm 50%)
- Source: National Center for Education Statistics (NCES), VA Dept. of Education
School Overview
Mary Williams Elementary School's student population of 669 students has stayed relatively flat over five school years.
The teacher population of 42 teachers has declined by 8% over five school years.
School Type
Grades Offered
Grades Prekindergarten-5
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
669 students
Total Classroom Teachers
42 teachers
Year Founded
2004
School Calendar
School Rankings
Mary Williams Elementary School ranks within the bottom 50% of all 1,773 schools in Virginia (based off of combined math and reading proficiency testing data).
The diversity score of Mary Williams Elementary School is 0.75, which is more than the diversity score at state average of 0.72. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1118 out of 1773 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
66%
68%
Reading/Language Arts Test Scores (% Proficient)
(20-21)64%
69%
Science Test Scores (% Proficient)
(20-21)25-29%
59%
Student-Teacher Ratio
16:1
14:1
American Indian
n/a
n/a
Asian
17%
8%
Hispanic
28%
20%
Black
35%
21%
White
15%
44%
Hawaiian
n/a
n/a
Two or more races
5%
7%
All Ethnic Groups
Chronically Absent Students
(22-23)15%
19.1%
Eligible for Free Lunch
71%
57%
Eligible for Reduced Lunch
8%
2%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), VA Dept. of Education
School Notes
- School Mascot: Panther Cub
Frequently Asked Questions
What is Mary Williams Elementary School's ranking?
Mary Williams Elementary School is ranked #1118 out of 1,773 schools, which ranks it among the bottom 50% of public schools in Virginia.
What schools are Mary Williams Elementary School often compared to?
Mary Williams Elementary Schoolis often viewed alongside schools like River Oaks Elementary School, Mary G. Porter Traditional by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
66% of students have achieved math proficiency (compared to the 68% VA state average), while 64% of students have achieved reading proficiency (compared to the 69% VA state average).
How many students attend Mary Williams Elementary School?
669 students attend Mary Williams Elementary School.
What is the racial composition of the student body?
35% of Mary Williams Elementary School students are Black, 28% of students are Hispanic, 17% of students are Asian, 15% of students are White, and 5% of students are Two or more races.
What is the student-teacher ratio of Mary Williams Elementary School?
Mary Williams Elementary School has a student ration of 16:1, which is higher than the Virginia state average of 14:1.
What grades does Mary Williams Elementary School offer ?
Mary Williams Elementary School offers enrollment in grades Prekindergarten-5 (Supplemental Virtual).
What school district is Mary Williams Elementary School part of?
Mary Williams Elementary School is part of Prince William County School District.
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