The bulletin board for America's public schools. Parents, teachers, students, and staff. One community per school.
SCHOOL COMMUNITY·MONTGOMERY COUNTY PUBLIC SCHOOLS·NCES 240048001458

Sligo Middle

1401 Dennis Ave, Silver Spring, MD 20902 · (301) 287-8890 · Montgomery County
GRADES 06–08MIDDLE21-SUBURBTITLE IREGULAR SCHOOL685 STUDENTS
Enrollment
685
Middle
DISTRICT 888 · STATE 764
Student : Teacher
12.7:1
54 FTE teachers
DISTRICT 14.5:1 · STATE 14.3:1
Free / Reduced Lunch
47%
320 students
DISTRICT 40% · STATE 54%
Community
5
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 621932%
Grade 724035%
Grade 822633%
Student demographics
70%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 75% · STATE 73% · US 70%
White
18928%
DISTRICT 23% · STATE 31% · US 43%
Hispanic
28742%
DISTRICT 36% · STATE 24% · US 30%
Black
13420%
DISTRICT 22% · STATE 32% · US 15%
Asian
365%
DISTRICT 14% · STATE 7% · US 6%
Two+
386%
DISTRICT 5% · STATE 5% · US 5%
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
35352%
Female
33148%

Discussions

+ POST

Test scores

MCAP 2024-25 . % Proficient (Levels 3-4)
English Language Arts
48.0%
MD avg 50.6% . +1.3pp since 2023
Math
25.0%
MD avg 34.8% . +3.5pp since 2023

What this means: On the MCAP, Maryland's statewide test, about 48 of every 100 students at this school read and write at grade level and about 25 of 100 do math at grade level. Across all Maryland schools, those numbers are about 51 and 35. Reading and writing scores are up about 1 points since 2023, while math scores are up about 4 points.

MCAP results by year

School yearEnglish Language ArtsMath
2024-2548.0%25.0%
2023-2446.7%21.5%
% 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
35.3%
composite math + reading, all grades
Predicted
46.6%
based on MD schools with similar FRL share
Beats by
-11.3pp
below demographic expectation

What this means: About 35% of students here test proficient in math and reading, compared with the roughly 47% 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 Sligo Middle

Sligo Middle's state test result (35.3% proficient) is higher than 2 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Sligo Middle this school68546.7%35.3%
Wiley H. Bates Middle
Annapolis
70754.7%34.2%
Redland Middle
Rockville
56252.1%37.1%
Monocacy Middle
Frederick
71056.5%30.7%
Ridgeview Middle
Gaithersburg
72241.7%41.0%
Silver Spring International Middle
Silver Spring
1,01543.7%38.3%
Matched among Maryland middle 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 Sligo Middle ranks

Among middle schools
MeasureThis schoolIn MarylandIn Montgomery County
State test proficiency
ranked highest first
35.3%#117 of 223#27 of 40
Math proficiency
ranked highest first
25.0%#107 of 223
▲ 5
#27 of 40
▼ 1
Reading proficiency
ranked highest first
48.0%#120 of 223
▲ 1
#27 of 40
▼ 1
Enrollment
ranked largest first
685#145 of 230#35 of 40
Students per teacher
ranked fewest first
12.7:1#42 of 225#6 of 40
Diversity index
ranked most diverse first
70.3%#54 of 225#20 of 40
Free and reduced lunch
ranked highest share first
46.7%#133 of 227#19 of 40
Enrollment change since 2017-18
ranked steepest decline first
-5.4%#87 of 123#13 of 21
Ranked against other public middle 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
685
-53 (-7%) vs 2020
-26% since 1990-91, when it was 922
Student : Teacher
12.7:1
was 13.2:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-256855412.7:147% (320)
2023-2470249.214.3:146% (323)
2022-2367652.812.8:153% (356)
2020-217385613.2:147% (344)
2017-1872457.612.6:142% (302)
2015-166254613.6:144% (275)
2010-114824311.2:151% (244)
2000-011,2467816.0:135% (440)
1990-919225815.9:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Sligo Middle.

Since 2017-18: students down 5% (724 to 685); teachers down 6% (57.6 to 54).

About Sligo Middle

Sligo Middle is a mid-sized middle school for students in Silver Spring, Maryland. The school counted 685 students in 2024-25, covering grades 6 through 8.

The district for Sligo Middle is Montgomery County Public Schools, with 208 schools and 159,181 students.

The largest racial or ethnic group at Sligo Middle is Hispanic, with 42% of students. The next largest groups are 28% White, 20% Black, 6% multiracial, and 5% Asian. The school's Hispanic share is 21 points above the 21% share among Montgomery County residents. Measured by the diversity index, the student body scores 70%.

Sligo Middle has a student-to-teacher ratio of 12.7:1, with 54 full-time-equivalent teachers. The average for middle schools in Maryland, 14.3:1, is higher. A common income measure, free or reduced-price lunch eligibility, is 47% at Sligo Middle.

The BeatsExpectations prediction for Sligo Middle is 46.6%, and its average proficiency rate across its state test results is 35.3%.

In Montgomery County, the median household earns about $132,450 a year, about 61% of adults have at least a bachelor's degree, and the poverty rate is about 5%. Across Montgomery County, 211 public schools serve about 159,181 students.

Among nearby public schools, Glen Haven Elementary is closest at about 0.5 miles. Other public schools within five miles number at least 8. The school's 35.3% average proficiency ranks 5th among 8 nearby schools.

Under the NCES locale system, Sligo Middle is Suburb: Large.

Since 2020-21, enrollment has fallen 7%, from 738 to 685.

This page is set up for the Sligo Middle community to discuss special education services, counseling, and support programs. Current and former families are welcome to add their experience.

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
Sligo Middle
District
Montgomery County Public Schools
Address
1401 Dennis Ave, Silver Spring, MD 20902
Phone
(301) 287-8890
County
Montgomery County
Level
Middle
Grade range
06–08
Total enrollment
685
Teachers (FTE)
54
Student–teacher ratio
12.7:1
Free and reduced lunch
320 (47%)
Locale
21-Suburb: Large
NCES ID
240048001458
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 Sligo Middle
How many students attend Sligo Middle?
Sligo Middle enrolls approximately 685 students in grades 06-08.
Is Sligo Middle an elementary, middle, or high school?
Sligo Middle is a middle school covering grades 06-08.
How many teachers does Sligo Middle have?
Sligo Middle employs 54 FTE teachers, for a student-to-teacher ratio of 12.7:1.
What is the student diversity at Sligo Middle?
Student demographics at Sligo Middle are roughly 28% White, 42% Hispanic, 20% Black, 5% Asian, 6% Two or more.
What district is Sligo Middle in?
Sligo Middle is part of Montgomery County Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
+ Post