Excellent
#28 of 1,363 schools in MD
Top 2% in state
Stone Mill Elementary
Elementary School · Montgomery County Public Schools
14323 Stonebridge View Dr, North Potomac, MD 20878
Enrollment
534
Student-Teacher
14.8:1
Score
9.4
Grades
Pre-K – 5th
Enrollment
534
Student-Teacher
14.8:1
Score
9.4
Grades
Pre-K – 5th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Maryland schools
#28 of 1,363
In North Potomac
#2 of 2
public schools
In district
#10 of 206
Montgomery County Public Schools
Equity
9.7 / 10
Excellent
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Stone Mill Elementary
Elementary School in North Potomac · grades Pre-K – 5th. Start here, then compare fit against nearby and district options.
Primary Montessori Day School
0.4 mi away. Use as a geographic alternative in the same move search.
Franklin Montessori Schools
0.6 mi away. Use as a geographic alternative in the same move search.
About Stone Mill Elementary
Stone Mill Elementary is a public elementary school in North Potomac, MD, part of Montgomery County Public Schools. Stone Mill Elementary serves approximately 534 students, and covers grades Pre-K-5th, and has a 14.8:1 student-teacher ratio. Stone Mill Elementary has a current MySchoolScout rating of 9.4 out of 10 and ranks #28 of 1,363 schools in MD.
Structured state assessment records for Stone Mill Elementary show 80% math proficiency (multi-year average, 2009-2025) and 82% reading/ELA proficiency (multi-year average, 2009-2025).
- This school 9.4 · Excellent
- District avg 7.5
- MD avg 6.3
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Stone Mill Elementary — Students at Stone Mill Elementary score 74% proficient, which is above what's typical for similar communities (expected: 63%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
15.2%
Students qualifying for federal meal assistance
Test Scores MD MCAP (2024-25)
Based on 28 test records from MD state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* 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: 9.5/10.
How Stone Mill Elementary Compares
See how Stone Mill Elementary performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
14323 Stonebridge View Dr, North Potomac, MD 20878
Nearby Alternatives
Families considering Stone Mill Elementary may also want to explore other elementary schools in the area. Cold Spring Elementary (rated 9.7/10, 2.7 miles away, in nearby Potomac), with a very similar rating. Another option is Travilah Elementary (rated 9.5/10, 1.9 miles away), with a very similar rating. Additionally, Lakewood Elementary (rated 9.3/10, 1.2 miles away, in nearby Rockville), with a very similar rating. For more schools in North Potomac, see our North Potomac schools guide .
Nearby Schools
20 within 2.8 mi| School | Distance | Rating |
|---|---|---|
| PRIMARY MONTESSORI DAY SCHOOL Rockville | 0.4 mi | 5.0 |
| FRANKLIN MONTESSORI SCHOOLS Rockville | 0.6 mi | — |
| CHILDREN'S MANOR MONTESSORI SCHOOL & DAYCARE Rockville | 0.6 mi | 6.6 |
| THE KATHERINE THOMAS SCHOOL Rockville | 0.8 mi | 9.1 |
| John L Gildner Regional Inst for Children & Adol Rockville | 1.0 mi | 5.8 |
| LITTLE GENIUS MONTESSORI SCHOOL Rockville | 1.1 mi | — |
| Lakewood Elementary Rockville | 1.2 mi | 9.3 |
| DuFief Elementary Gaithersburg | 1.4 mi | 8.8 |
| Fields Road Elementary Gaithersburg | 1.9 mi | 7.5 |
| Lakelands Park Middle Gaithersburg | 1.9 mi | 7.6 |
| Robert Frost Middle School Rockville | 1.8 mi | 8.9 |
| Travilah Elementary North Potomac | 1.9 mi | 9.5 |
| Thomas S. Wootton High Rockville | 2.0 mi | 7.7 |
| MARCIA D SMITH SCHOOL Gaithersburg | 2.5 mi | — |
| Rachel Carson Elementary Gaithersburg | 2.4 mi | 8.8 |
| Summit Hall Elementary Gaithersburg | 2.7 mi | 3.8 |
| Fallsmead Elementary Rockville | 2.3 mi | 9.2 |
| GODDARD SCHOOL IN GAITHERSBURG Gaithersburg | 2.8 mi | 4.0 |
| Cold Spring Elementary Potomac | 2.7 mi | 9.7 |
| Rosemont Elementary Gaithersburg | 2.8 mi | 6.8 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 20878 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$142,062
Median Home Value
$675,200
Median Rent
$2,188/mo
Population
65,236
College Educated
70.1%
Homeownership
69.3%
Avg Commute
29.9 min
Poverty Rate
5%
Median Age
41.4
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Benfield Elementary Severna Park, MD | 9.4 |
| Clarksville Elementary Clarksville, MD | 9.4 |
| Heather Hills Elementary Bowie, MD | 9.4 |
| Kensington Parkwood Elementary Kensington, MD | 9.4 |
| Rockburn Elementary Elkridge, MD | 9.4 |
| Severna Park Elementary Severna Park, MD | 9.4 |
Frequently Asked Questions
Common questions about Stone Mill Elementary
What grades does Stone Mill Elementary serve?
Stone Mill Elementary serves students in grades Pre-K through 5th.
How many students attend Stone Mill Elementary?
Stone Mill Elementary has an enrollment of approximately 534 students.
What is the student-teacher ratio at Stone Mill Elementary?
The student-teacher ratio at Stone Mill Elementary is 14.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Stone Mill Elementary rank in MD?
Stone Mill Elementary ranks #28 of 1,363 schools in MD.
What is Stone Mill Elementary's MySchoolScout rating?
Stone Mill Elementary has a current MySchoolScout rating of 9.4 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 Stone Mill Elementary?
Based on loaded state assessment records, Stone Mill Elementary has 80% math proficiency (multi-year average, 2009-2025) and 82% reading/ELA proficiency (multi-year average, 2009-2025).
Is Stone Mill Elementary a charter school?
No, Stone Mill Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Stone Mill Elementary a Title I school?
No, Stone Mill Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Stone Mill Elementary?
15.2% of students at Stone Mill 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.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Pre-K – 5th
- Enrollment
- 534
- Student-Teacher Ratio
- 14.8:1
- Teachers (FTE)
- 36
- Free/Reduced Lunch
- 15.2%
- Type
- regular
- Setting
- Large Suburb
- County
- Montgomery County
- Chronic Absenteeism (SY 2022-23)
- 10.9%
- Phone
- (240) 740-5450
Resources & Links
District
Montgomery County Public Schools- District Enrollment
- 160,223
- Schools in District
- 211
- Per-Pupil Spending
- $19,456
- District Rank
- #10 of 206
Other Schools in This District
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