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SCHOOL COMMUNITY·MONTGOMERY COUNTY PUBLIC SCHOOLS·NCES 240048001510

Greencastle Elementary

13611 Robey Rd, Silver Spring, MD 20904 · (240) 740-1420 · Montgomery County
GRADES PK–05ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL722 STUDENTS
Enrollment
722
Elementary
DISTRICT 514 · STATE 481
Student : Teacher
12.3:1
59 FTE teachers
DISTRICT 12.9:1 · STATE 13.8:1
Free / Reduced Lunch
60%
436 students
DISTRICT 40% · STATE 54%
Community
2
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Pre-K
74
Kindergarten
91
Grade 1
113
Grade 2
114
Grade 3
106
Grade 4
115
Grade 5
109
Student demographics
White
264%
DISTRICT 23% · STATE 31%
Hispanic
14921%
DISTRICT 36% · STATE 24%
Black
47866%
DISTRICT 22% · STATE 32%
Asian
497%
DISTRICT 14% · STATE 7%
Two+
193%
DISTRICT 5% · STATE 5%
Pacific Islander
10%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
36651%
Female
35649%

Discussions

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Test scores

MCAP 2024-25 . % Proficient (Levels 3-4)
English Language Arts
31.9%
MD avg 50.6% . -0.9pp since 2023
Math
29.1%
MD avg 34.8% . +5.6pp since 2023

What this means: On the MCAP, Maryland's statewide test, about 32 of every 100 students at this school read and write at grade level and about 29 of 100 do math at grade level. Across all Maryland schools, those numbers are about 51 and 35. Reading and writing scores have held steady since 2023, while math scores are up about 6 points.

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
29.3%
composite math + reading, all grades
Predicted
38.5%
based on MD schools with similar FRL share
Beats by
-9.2pp
below demographic expectation

What this means: About 29% of students here test proficient in math and reading, compared with the roughly 38% 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 →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
722
+11 (+2%) vs 2017
Student : Teacher
12.3:1
was 14.4:1
% White
4%
was 3%
% Hispanic
21%
was 21%
% Black
66%
was 66%
% Asian
7%
was 7%
Source: NCES Common Core of Data

About Greencastle Elementary

Greencastle Elementary is an elementary-level community of roomy scale in Silver Spring, Maryland, overseen by Montgomery County Public Schools, teacheing 722 students in grades pre-K through 5. Compared to the state average of about 481 students per school, that is 50% bigger than typical.

Within Montgomery County Public Schools, which oversees 208 schools and 159,181 students, Greencastle Elementary is one campus in the system.

Looking at the student body, Greencastle Elementary reports that the largest single group is Black, at 66% of enrollment. Beyond that, the school reports 21% Hispanic, 7% Asian, 4% White, 3% multiracial. That is noticeably more Black than the county at large, where the share is closer to 19%.

Looking at school resources, On paper, Greencastle Elementary has 59 full-time-equivalent teachers, translating to a class-load average of around 12.3:1. Statewide, the average ratio sits near 13.8:1, putting Greencastle Elementary tighter than the state norm the norm. An estimated 60% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. Set against Montgomery County (around 40%), the school's rate is meaningfully above typical.

After controlling for student poverty, Greencastle Elementary tracks the demographic baseline. The model predicts 38.5% given the school's FRL share; actual proficiency is 29.3%.

Across the wider county, community-level numbers for Montgomery County indicate the typical household earns roughly $132,450 per year, roughly 61% of adults have completed at least a four-year degree, and the poverty rate sits near 5%. Greencastle Elementary is one of 211 public schools in Montgomery County (combined enrollment of about 159,181 students).

Paint Branch High is the nearest neighboring public school, about 0.5 miles from this campus. Within five miles, there are 8 other public schools. On composite proficiency, Greencastle Elementary comes 7th of 9 in the immediate cluster, below the nearby-schools average of 39.5%.

Geographically, the school is in a suburban area.

Looking at the recent track record. Over the past 7-year window, the student count stayed largely flat: 711 students in 2018 compared to 722 in 2025. The student-to-teacher ratio fell from 14.4:1 in 2018 to 12.3:1 today.

In the discussion threads here, recent activity here tends to focus on science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.

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
Greencastle Elementary
District
Montgomery County Public Schools
Address
13611 Robey Rd, Silver Spring, MD 20904
Phone
(240) 740-1420
County
Montgomery County
Level
Elementary
Grade range
PK–05
Total enrollment
722
Teachers (FTE)
59
Student–teacher ratio
12.3:1
Free/Reduced lunch
436 (60%)
Locale
21-Suburb: Large
NCES ID
240048001510
Charter school
No
Virtual school
No

Related schools

Other schools in Montgomery County Public Schools
Other schools in Silver Spring
Nearby schools

Frequently asked questions

About Greencastle Elementary
How large is Greencastle Elementary?
Greencastle Elementary enrolls approximately 722 students in grades PK-05.
What grades does Greencastle Elementary serve?
Greencastle Elementary serves grades PK-05.
What is the student-teacher ratio at Greencastle Elementary?
The student-to-teacher ratio at Greencastle Elementary is approximately 12.3:1 (59 FTE teachers).
How diverse is Greencastle Elementary?
Greencastle Elementary reports a student body of 4% White, 21% Hispanic, 66% Black, 7% Asian, 3% Two or more.
What district is Greencastle Elementary in?
Greencastle Elementary is part of Montgomery County Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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