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Public elementary school · Montgomery County Public Schools · Germantown, Maryland

Clopper Mill Elementary

Clopper Mill Elementary rates 8.8, among the strongest elementary schools in Montgomery County Public Schools, where the rated median is 7.7.

Elementary schools, 1 to 10This campus against public elementary schools around it that are rated on verified state test data.
8.8this school

8.8 on a one-to-ten scale; the Montgomery County Public Schools median is 7.7.

#64 of 1,363 schools in Maryland · Montgomery County Public Schools: 131 elementary schools rated, median 7.7

The brief

A Montgomery County Public Schools elementary school serving grades Pre-K – 5th.

Students at Clopper Mill Elementary score 35% proficient, which is above what's typical for similar communities (expected: 32%).

It ranks 64 of 1,363 schools in Maryland and 22 of 206 in Montgomery County Public Schools.

Math27%Level with the Maryland average of 27%183 students tested · 2026 MCAP
Reading43%9 points below the Maryland average of 52%181 students tested · 2026 MCAP
Proficiency declined earlier in the 18-year record (2009–2026), then recovered 20 points since 2021, reaching 35% in 2026.2026 MCAP; 30 test records from MD state assessments and EdFacts (NCES).

What the rating is made of, each out of 10

Student Progress
9.9
50% of the rating
Academics
6.8
30% of the rating
Resources & Environment
9.1
20% of the rating
About this school's data1 correction under review · rating: low confidence · 7 sources, 2019–2026

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.

Attendance data is under correction. This existing Resources & Environment score and overall rating may still reflect an unverified attendance input.

Full Profile · 3/3 metrics

Multi-year averages used by the rating model: math 37% (multi-year average, 2009-2026) · reading/ELA 45% (multi-year average, 2009-2026).

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2026 MCAP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2026 MCAP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
State assessments · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 20874; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2026; directory SY 2023–24

The neighborhood

Where it sits, and what the area looks like.
Clopper Mill Elementary and the 20 nearest elementary schools, each pin colored by its score.Pins are locations, not attendance boundaries. Verify the enrollment path with the district.

The area

Median income
$109,648
Median home value
$385,300
Median rent
$1,938/mo
College educated
48.7%
Homeownership
65.9%
Poverty rate
8.2%

U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 20874; this is area context, not an attendance boundary.

Getting around

Walk Score
36
Car-Dependent
Transit Score
38
Some Transit
Bike Score
36
Somewhat Bikeable
County reported crime
1,725/100K
Reported Part-1 offenses (violent + property + arson) per 100,000 county residents, counting every city police department, sheriff's office and county police department that reported a full year to the FBI Uniform Crime Reporting program. Shown only where those agencies cover at least 80% of the county's residents. Not a school safety rating.

Walk, transit and bike scores byWalk Score

FBI Uniform Crime Reporting · 2025 · county context, not school-level safety or attendance eligibility. Source details

Programs and who goes here

What the campus offers, and who it enrolls.

Programs

Gifted and talented
Available
A program for qualifying students · CRDC via Urban Institute · SY 2021–22

Who goes here

Free or reduced lunch
62.2%
Students qualifying for federal meal assistance. Shown separately, never in the score.

NCES Common Core of Data (CCD).

Compare nearby

Grade-compatible schools using the same rating model.
Public-school ratings. Grade-compatible schools within 5 miles, best rated first.
  1. 9.3Compare →
  2. 9.1Compare →
  3. Clopper Mill Elementarythis school
    8.8
  4. 8.2Compare →
  5. 7.7Compare →
  6. 7.7Compare →
  7. 7.6Compare →
  8. 6.5Compare →
  9. 2.6Compare →
Eight grade-compatible schools using the same rating model sit within 5 miles, and two rate higher than Clopper Mill Elementary.Public-school ratings. Straight-line distance from this campus. Pins are locations, not attendance boundaries; verify the enrollment path with the district.

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

The record

What is on file, and where each number came from.

Questions families ask

What grades does Clopper Mill Elementary serve?

Clopper Mill Elementary serves students in grades Pre-K through 5th.

How many students attend Clopper Mill Elementary?

Clopper Mill Elementary has an enrollment of approximately 460 students.

What is the student-teacher ratio at Clopper Mill Elementary?

The student-teacher ratio at Clopper Mill Elementary is 11.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Clopper Mill Elementary rank in MD?

Clopper Mill Elementary ranks #64 of 1,363 schools in MD.

What is Clopper Mill Elementary's MySchoolScout rating?

Clopper Mill Elementary has a current MySchoolScout rating of 8.8 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 Clopper Mill Elementary?

Based on loaded state assessment records, Clopper Mill Elementary has 37% math proficiency (multi-year average, 2009-2026) and 45% reading/ELA proficiency (multi-year average, 2009-2026).

Is Clopper Mill Elementary a charter school?

No, Clopper Mill Elementary is not a charter school. It is a traditional public school operated by the local school district.

Is Clopper Mill Elementary a Title I school?

No, Clopper Mill Elementary is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Clopper Mill Elementary?

62.2% of students at Clopper 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.

School facts

Grades
Pre-K – 5th
Enrollment
460
Student-teacher ratio
11.8:1
Teachers (FTE)
39
Type
Regular
Title I
No
Setting
Large Suburb
County
Montgomery County
Rank in district
#22 of 206
Schools in district
211
District spending per student
$19,456
NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
8.4%
Census SAIPE · 2024
Area population (ZIP 20874)
62,233
Area average commute
32.8 min
Area median age
37.8

NCES Common Core of Data (CCD) (SY 2023–24).

Related reading

Data from NCES Common Core of Data, Maryland Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.