Very Good
#429 of 1,363 schools in MD
Top 31% 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
7.3
Grades
Pre-K – 5th
Enrollment
534
Student-Teacher
14.8:1
Score
7.3
Grades
Pre-K – 5th
Updated
2022-23
Updated 2022-23
How this school compares
In North Potomac
#2 of 2
public schools
Maryland elementary schools
#410 of 882
In district
#67 of 206
Montgomery County Public Schools
Equity
9.7 / 10
Exceptional
About Stone Mill Elementary
Stone Mill Elementary serves 534 students in prekindergarten through fifth grade in North Potomac, Maryland, consistently ranking among the top elementary schools in the state. With its impressive #39 ranking out of 1,364 Maryland elementary schools, placing it in the 97th percentile, Stone Mill demonstrates exceptional academic achievement that reflects the dedication of its 36 full-time teachers and supportive community. The school maintains a comfortable student-teacher ratio of 14.8:1, allowing for personalized attention that contributes to strong academic outcomes.
Students excel particularly in English Language Arts, with 80% achieving proficiency or above, while 69% demonstrate proficiency in mathematics. These results have earned Stone Mill a MySchoolScout rating of 8.1 out of 10, with an outstanding academic score of 9.8. Stone Mill serves families in the affluent North Potomac area, where the median household income reaches $141,902 and 71% of adults hold bachelor's degrees or higher.
This highly educated community, with a low poverty rate of just 4.4%, creates an environment that strongly values academic achievement and educational excellence. Located on Stonebridge View Drive in Montgomery County's thriving suburban landscape, Stone Mill Elementary sits at the heart of one of Maryland's most desirable residential communities.
Score Breakdown
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Stone Mill Elementary — Students at Stone Mill Elementary score 79% proficient, which is above what's typical for similar communities (expected: 65%).
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 8 test records from MD state assessments. About our data
Proficiency Trend
→ StableAverage 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: 6.2/10.
How Stone Mill Elementary Compares
See how Stone Mill Elementary performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has remained stable from 78% (2019) to 78.3% (2025). Reading/ELA proficiency has declined from 83% (2019) to 79.3% (2025).
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. DuFief Elementary (rated 8.8/10, 1.4 miles away, in nearby Gaithersburg), which scores notably higher. Another option is Fields Road Elementary (rated 8.7/10, 1.9 miles away, in nearby Gaithersburg), which scores notably higher. Additionally, Rachel Carson Elementary (rated 8.5/10, 2.4 miles away, in nearby Gaithersburg), which scores notably higher. 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 | 6.7 |
| THE KATHERINE THOMAS SCHOOL Rockville | 0.8 mi | 9.1 |
| John L Gildner Regional Inst for Children & Adol Rockville | 1.0 mi | 6.7 |
| LITTLE GENIUS MONTESSORI SCHOOL Rockville | 1.1 mi | — |
| Lakewood Elementary Rockville | 1.2 mi | 8.2 |
| DuFief Elementary Gaithersburg | 1.4 mi | 8.8 |
| Fields Road Elementary Gaithersburg | 1.9 mi | 8.7 |
| Lakelands Park Middle Gaithersburg | 1.9 mi | 6.7 |
| Robert Frost Middle School Rockville | 1.8 mi | 5.3 |
| Travilah Elementary North Potomac | 1.9 mi | 8.0 |
| Thomas S. Wootton High Rockville | 2.0 mi | 5.2 |
| MARCIA D SMITH SCHOOL Gaithersburg | 2.5 mi | — |
| Rachel Carson Elementary Gaithersburg | 2.4 mi | 8.5 |
| Summit Hall Elementary Gaithersburg | 2.7 mi | 6.1 |
| Fallsmead Elementary Rockville | 2.3 mi | 7.2 |
| GODDARD SCHOOL IN GAITHERSBURG Gaithersburg | 2.8 mi | 4.0 |
| Cold Spring Elementary Potomac | 2.7 mi | 6.9 |
| Rosemont Elementary Gaithersburg | 2.8 mi | 7.3 |
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
Community Profile
The community surrounding Stone Mill Elementary has a median household income of $142,062. It is a well-educated community where 70% of adults hold a bachelor's degree or higher. The median home value in the area is $675,200, with a median rent of $2,188/month. The local poverty rate of 5.0% is relatively low. The average commute for residents is 30 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Andrew Jackson Academy Forestville, MD | 7.3 |
| Boonsboro Elementary Boonsboro, MD | 7.3 |
| Choptank Elementary School Cambridge, MD | 7.3 |
| Cresthaven Elementary Silver Spring, MD | 7.3 |
| Freedom District Elementary Sykesville, MD | 7.3 |
| George T. Cromwell Elementary Glen Burnie, MD | 7.3 |
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 is ranked #429 out of 1,363 schools in MD.
What is Stone Mill Elementary's MySchoolScout rating?
Stone Mill Elementary has a composite rating of 7.3 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Stone Mill Elementary?
Based on the most recent state assessment data, Stone Mill Elementary has 69.8% math proficiency and 73.6% reading/ELA proficiency.
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
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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
- Phone
- (240) 740-5450
- Data Year
- 2023–2024
Resources & Links
District
Montgomery County Public Schools- District Enrollment
- 160,223
- Schools in District
- 211
- Per-Pupil Spending
- $19,456
- District Rank
- #67 of 206
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
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