Stone Mill Elementary
Score 89.7/100: better than 89% of Maryland elementary schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools
Performance (state tests, 2025-26)
% proficient on state tests in Maryland, all students. Colored bars are green when the school is at or above the average for similar Maryland schools.
All 9 published results by grade and test
As published by Maryland State Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.
| Subject | Grade | Test | Result | Students tested |
|---|---|---|---|---|
| English language arts | Grade 3 | MCAP English Language Arts 03 | 71.3 | 101 |
| English language arts | Grade 4 | MCAP English Language Arts 04 | 77.2 | 101 |
| English language arts | Grade 5 | MCAP English Language Arts 05 | 65.5 | 87 |
| English language arts | All grades | MCAP English Language Arts All Grades | 71.6 | 289 |
| Math | Grade 3 | MCAP Mathematics 03 | 76.9 | 104 |
| Math | Grade 4 | MCAP Mathematics 04 | 74 | 100 |
| Math | Grade 5 | MCAP Mathematics 05 | 60 | 90 |
| Math | All grades | MCAP Mathematics All Grades | 70.7 | 294 |
| Science | Grade 5 | MCAP Science Grade 5 | 52.8 | 89 |
School profile
- Grades
- PK-5
- Students
- 534
- Type
- Elementary school
- Charter school
- No
- Program
- Regular
Students
District and location
Contact
North Potomac, MD 20878
"Typical" is the middle (median) elementary school in Maryland. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).
Nearby elementary schools
Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.
Explore schools around North Potomac
Location
Official sources
Every figure on this page comes from published government data. Check the originals here; we refresh when states release new results.
U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD): school directory, grades served, enrollment and free/reduced-price lunch, 2023-24 and 2024-25. Spotted a mistake? Tell us.
Stone Mill Elementary at a glance
Stone Mill Elementary is a public elementary school in North Potomac, Maryland, serving grades PK-5. It is part of Montgomery County Public Schools. It has about 534 students (a typical Maryland elementary school has 466). About 14% of students are eligible for free or reduced-price lunch, compared with 55% at a typical Maryland elementary school, which is useful context when reading test results.
In 2025-26 state tests, 72% in English language arts (similar schools: 50%) and 71% in math (similar schools: 36%) reached the state standard (% proficient). On our score, which compares it only with other Maryland elementary schools, it scores 89.7 out of 100: better than 89% of them, ranking #79 of 765. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.
Page updated 2026-10-12.