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SCHOOL COMMUNITY·MONTGOMERY COUNTY PUBLIC SCHOOLS·NCES 240048000818

Diamond Elementary

4 Marquis Dr, Gaithersburg, MD 20878 · (240) 740-2120 · Montgomery County
GRADES PK–05ELEMENTARY13-CITYREGULAR SCHOOL654 STUDENTS
Enrollment
654
Elementary
DISTRICT 514 · STATE 481
Student : Teacher
14.9:1
44 FTE teachers
DISTRICT 12.9:1 · STATE 13.8:1
Free / Reduced Lunch
12%
81 students
DISTRICT 40% · STATE 54%
Community
5
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Pre-K142%
Kindergarten10917%
Grade 110516%
Grade 210416%
Grade 39915%
Grade 411818%
Grade 510516%

This year's kindergarten class (109) is about the same size as its 5th grade class (105).

Student demographics
71%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 75% · STATE 73% · US 70%
White
16425%
DISTRICT 23% · STATE 31% · US 43%
Hispanic
9114%
DISTRICT 36% · STATE 24% · US 30%
Black
609%
DISTRICT 22% · STATE 32% · US 15%
Asian
29245%
DISTRICT 14% · STATE 7% · US 6%
Two+
366%
DISTRICT 5% · STATE 5% · US 5%
Native American
81%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
30%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
35354%
Female
30146%

Discussions

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Test scores

MCAP 2024-25 . % Proficient (Levels 3-4)
English Language Arts
71.1%
MD avg 50.6% . -15.0pp since 2023
Math
70.2%
MD avg 34.8% . -12.4pp since 2023

What this means: On the MCAP, Maryland's statewide test, about 71 of every 100 students at this school read and write at grade level and about 70 of 100 do math at grade level. Across all Maryland schools, those numbers are about 51 and 35. Reading and writing scores are down about 15 points since 2023, while math scores are down about 12 points.

MCAP results by year

School yearEnglish Language ArtsMath
2024-2571.1%70.2%
2023-2486.1%82.6%
% Proficient (Levels 3-4), all students and all tested grades.
Source: MCAP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
77.5%
composite math + reading, all grades
Predicted
66.9%
based on MD schools with similar FRL share
Beats by
+10.6pp
above demographic expectation

What this means: About 78% of students here test proficient in math and reading, compared with the roughly 67% typical for Maryland schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Maryland's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Diamond Elementary

Diamond Elementary's state test result (77.5% proficient) is higher than 3 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Diamond Elementary this school65412.4%77.5%
Stone Mill Elementary
North Potomac
51614.1%77.3%
Centennial Lane Elementary
Ellicott City
74916.4%77.8%
Manor Woods Elementary
Ellicott City
69716.9%77.1%
Triadelphia Ridge Elementary
Ellicott City
6197.3%81.9%
Snowden Farm Elementary
Clarksburg
57820.8%75.1%
Matched among Maryland elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Diamond Elementary ranks

Among elementary schools
MeasureThis schoolIn MarylandIn Montgomery County
State test proficiency
ranked highest first
77.5%#46 of 853#20 of 131
Math proficiency
ranked highest first
70.2%#88 of 853
▼ 74
#31 of 131
▼ 27
Reading proficiency
ranked highest first
71.1%#132 of 853
▼ 115
#33 of 131
▼ 27
Enrollment
ranked largest first
654#141 of 898#22 of 139
Students per teacher
ranked fewest first
14.9:1#577 of 857#110 of 136
Diversity index
ranked most diverse first
70.7%#155 of 857#50 of 136
Free and reduced lunch
ranked highest share first
12.4%#848 of 885#124 of 137
Enrollment change since 2017-18
ranked steepest decline first
-11.4%#310 of 551#51 of 97
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
654
-126 (-16%) vs 2020
-5% since 1990-91, when it was 692
Student : Teacher
14.9:1
was 14.4:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2565443.814.9:112% (81)
2023-2465344.214.8:113% (83)
2022-2367648.214.0:115% (103)
2020-217805414.4:17% (52)
2017-187384616.1:110% (72)
2015-166654016.6:110% (68)
2010-115483814.4:110% (56)
2000-014612816.5:116% (75)
1990-916923221.6:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Diamond Elementary.

Since 2017-18: students down 11% (738 to 654); teachers down 5% (46 to 43.8).

About Diamond Elementary

Diamond Elementary is the name of a medium-sized elementary school in Gaithersburg, Maryland. It covers pre-K through 5, with a total enrollment of 654 students. Statewide, elementary schools in Maryland average about 481 students each.

Montgomery County Public Schools serves 159,181 students across 208 schools.

No single group makes up more than half of enrollment at Diamond Elementary. The largest is Asian students, at 45%. Next come 25% White, 14% Hispanic, 9% Black, and 6% multiracial. That compares with about 15% Asian among all Montgomery County residents. Diamond Elementary's diversity index is 71%, against a US figure of 70%.

Federal staffing data show 43.8 full-time-equivalent teachers at Diamond Elementary and a ratio of 14.9:1. This ratio sits 1.1 above the 13.8:1 average for elementary schools in Maryland. Free or reduced-price lunch eligibility covers 12% of students. That is lower than the 40% average for public schools in Montgomery County.

Test results at Diamond Elementary are 10.6 points above what its free or reduced-price lunch share predicts (77.5% actual, 66.9% predicted).

Within Montgomery County, the median household income is $132,450, 61% of adults hold a bachelor's degree or higher, and about 5% of residents live below the federal poverty line. Besides Diamond Elementary, Montgomery County has 210 other public schools.

The shortest distance from Diamond Elementary to another public school is about 0.5 miles, to Brown Station Elementary. Other public schools within five miles: at least 8. The nearest schools with test data average 47.3%, lower than Diamond Elementary's 77.5%.

Locale: City: Small. In NCES terms, the school is inside a principal city with a population under 100,000.

2024-25 enrollment was 654, a 16% decrease from 780 in 2020-21.

The discussion area below is open to posts about sports schedules, lunch menus, and spirit week. Reviews and ratings from people who know the school are welcome.

Montgomery County at a glance

View full county profile
Population
1,065,949
Census ACS
Median income
$132,450
Household, ACS
Bachelor's+
61%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
211
159,181 students

Quick facts

School name
Diamond Elementary
District
Montgomery County Public Schools
Address
4 Marquis Dr, Gaithersburg, MD 20878
Phone
(240) 740-2120
County
Montgomery County
Level
Elementary
Grade range
PK–05
Total enrollment
654
Teachers (FTE)
44
Student–teacher ratio
14.9:1
Free and reduced lunch
81 (12%)
Locale
13-City: Small
NCES ID
240048000818
Charter school
No
Virtual school
No

Related schools

Other schools in Montgomery County Public Schools
Other schools in Gaithersburg
Other Diamond Elementary schools

3 other US public schools in 4 states are named Diamond Elementary. Diamond Elementary is the largest of the 4.

Nearby schools

Frequently asked questions

About Diamond Elementary
What is the total enrollment at Diamond Elementary?
Diamond Elementary enrolls approximately 654 students in grades PK-05.
What grades does Diamond Elementary serve?
Diamond Elementary serves grades PK-05.
How many teachers does Diamond Elementary have?
Diamond Elementary employs 44 FTE teachers, for a student-to-teacher ratio of 14.9:1.
What is the student diversity at Diamond Elementary?
Student demographics at Diamond Elementary are roughly 25% White, 14% Hispanic, 9% Black, 45% Asian, 6% Two or more.
Is Diamond Elementary public or private?
Diamond Elementary is a public K-12 school, overseen by Montgomery County Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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