Mary Williams Elementary vs Potomac High
A head-to-head comparison of two schools in Virginia, United States, 751 m apart, using official American 2025 data. The better value in each row is highlighted.
Mary Williams Elementary
Dumfries · Public elementary · Grades PK–5
669 students
Potomac High
Dumfries · Public high · Grades 9–12
2,197 students
| Measure | Mary Williams Elementary Dumfries, Virginia | Potomac High Dumfries, Virginia |
|---|---|---|
| Success Index (US) | 69 Top 25% | 65 Top 50% |
| State rank | #708 of 1,142 | #244 of 317 |
| National rank | #12212 of 50,301 | #4493 of 16,910 |
| Sector | Public | Public |
| Type | Elementary | High |
| Year range | Grades PK–5 | Grades 9–12 |
| Students | 669 | 2,197 |
| Enrollment | 669 | 2,197 |
| Free/reduced-price lunch | 70.9% | 67.6% |
| Students per teacher | 15.9 | 16.3 |
| Reading proficiency | 74% | 76% |
| Math proficiency | 77% | 78% |
| city | Dumfries | Dumfries |
| state | Virginia | Virginia |
| Website | – | – |
The verdict
- •Mary Williams Elementary scores higher on the Success Index (US) (68.7 vs 65.2).
- •Potomac High does better on math proficiency (78% vs 77%).
- •Potomac High does better on reading proficiency (76% vs 74%).
- •Potomac High does better on community advantage (fewer free/reduced-price lunch) (67.6% vs 70.9%).
- •Mary Williams Elementary does better on students per teacher (15.9 vs 16.3).
- •Potomac High is the larger school with 2,197 students compared with 669.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Mary Williams Elementary better than Potomac High?
On the Success Index (US), Mary Williams Elementary ranks higher (68.7 vs 65.2 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Mary Williams Elementary and Potomac High?
About 751 m in a straight line, between Dumfries and Dumfries in Virginia.
Which has the better Enrollment?
Mary Williams Elementary: 669. Potomac High: 2,197. Students enrolled in the latest NCES directory year.
How do Mary Williams Elementary and Potomac High rank in Virginia?
Mary Williams Elementary is 708th of 1,142 and Potomac High is 244th of 317 among elementary schools in Virginia on the 2025 Success Index (US).